Generated by All in One SEO Pro v5.0.1.1, this is an llms.txt file, used by LLMs to index the site. # A-Guy Heating & Air Because everyone recommends A-Guy ## Sitemaps - [XML Sitemap](https://a-guy.com/sitemap.xml): Contains all public & indexable URLs for this website. ## Posts - [HVAC Blog](https://a-guy.com/hvac-blog/) - [Mini Split Air Conditioner Zone Control Problems in Palos Heights](https://a-guy.com/mini-split-ac-zone-control-problem/) - Mini split air conditioners have become a popular choice for many homeowners in Palos Heights. Their flexibility and efficiency make them ideal for maintaining comfort in different areas of a house, particularly during the hot summer months. One key feature that sets these systems apart is their zone control capability, which allows for precise temperature - [Why Your Mini Split Air Conditioner is Making Whistling Sounds in Oak Lawn](https://a-guy.com/mini-split-ac-is-making-whistling-sounds/) - When your mini split air conditioner begins to emit whistling sounds, it can be more than just a simple annoyance—it could be a sign of underlying issues that require attention. These unexpected noises often indicate that something in the system isn’t functioning correctly, which can lead to diminished cooling performance and higher energy bills if - [When Your Mini Split Heat Pump Shows Error Codes in Palos Heights](https://a-guy.com/troubleshoot-mini-split-heat-pump-errors/) - Mini split heat pumps have become a popular choice for homeowners in Palos Heights due to their efficiency and ability to provide both heating and cooling. These compact systems are ideal for those looking to maintain a comfortable home environment without the expense and complexity of ductwork. Despite their numerous benefits, mini split heat pumps - [Why Your HVAC System is Not Cooling Properly in Hickory Hills](https://a-guy.com/hvac-system-is-not-cooling-properly/) - When your air conditioning system isn’t cooling properly on a hot summer day in Hickory Hills, it can quickly turn from an inconvenience into a major discomfort. Many homeowners in the area face this issue, especially during the intense heat that a Chicagoland summer brings. There are a variety of reasons why your HVAC system - [Common Mini Split Remote Control Problems in Oak Lawn](https://a-guy.com/common-mini-split-remote-control-problems/) - Mini split air conditioners have become a popular choice for homeowners in Oak Lawn. These systems offer an efficient and flexible way to manage indoor climate control, especially during the warmer months. The sleek design and quiet operation make them a preferred option for many. However, as with any technology, users occasionally encounter issues, particularly - [Why Your AC Unit Struggles During Peak Summer in Hickory Hills](https://a-guy.com/why-ac-struggles-during-peak-summer/) - As summer reaches its peak, the residents of Hickory Hills often find themselves depending heavily on their air conditioning units to stay cool and comfortable. AC units are vital during this time, providing relief from the sweltering heat and creating a pleasant indoor environment. However, this heavy reliance can lead to certain challenges for your - [When Your Heat Pump Emergency Heat Won't Turn Off in Darien](https://a-guy.com/heat-pump-emergency-heat-wont-turn-off/) - Heat pumps play a crucial role in maintaining a comfortable home environment by efficiently managing temperature throughout the year. These systems are designed to provide both heating and cooling, making them versatile solutions for homeowners. During colder months, the heat pump ensures warmth by transferring heat into the home. A key feature of many heat - [Addressing Mini Split Condensation Issues in Oak Lawn](https://a-guy.com/addressing-mini-split-condensation-issues/) - Mini split HVAC systems are a popular choice for homeowners in Oak Lawn due to their flexibility and energy efficiency. However, like any other HVAC system, they can sometimes experience issues. One common problem is condensation, which can lead to a host of other complications if not addressed. Understanding what causes condensation in these systems - [Why Your Mini Split Heat Pump Won't Switch Modes in La Grange](https://a-guy.com/solve-mini-split-heat-pump-issues/) - Mini split heat pumps have become a popular choice among homeowners in La Grange. Known for their energy efficiency and ability to provide both heating and cooling, these systems offer comfort and flexibility for various home settings. Unlike central HVAC systems, mini split heat pumps allow you to control the temperature in individual rooms, enhancing - [Solving Mini Split Communication Errors in Tinley Park](https://a-guy.com/solving-mini-split-communication-errors/) - Mini split air conditioners have become a popular choice among homeowners in Tinley Park. These systems offer efficient cooling and flexibility, making them ideal for various household setups. However, like any other complex system, they can encounter issues that disrupt their functionality. One common problem is communication errors. These errors can affect how the indoor - [Why Your Mini Split Outdoor Unit is Noisy in Oak Lawn](https://a-guy.com/why-your-mini-split-outdoor-unit-is-noisy/) - Mini split air conditioners have earned a reputation for being an efficient and flexible cooling solution for many homeowners in Oak Lawn. These systems offer the distinct advantage of being able to heat or cool specific zones, making them ideal for varied climate control needs throughout the year. As more people turn to mini splits - [Summer Preparation Guide for Your HVAC System in Hickory Hills](https://a-guy.com/hvac-system-summer-preparation-guide/) - As summer approaches and temperatures rise, ensuring your HVAC system is prepared for the season is crucial for maintaining a comfortable home environment. In Hickory Hills, where the summer heat can be relentless, taking proactive steps with HVAC maintenance can significantly impact the efficiency and reliability of your cooling system. Preparing your HVAC system not - [Signs of Electrical Problems in Your Mini Split System in Darien](https://a-guy.com/signs-of-electrical-problems/) - Mini split air conditioners have become a popular choice among homeowners for their efficiency and convenience. They provide just the right amount of cooling or heating that your space needs, making them a perfect solution for temperature control. However, like any device, they can run into problems, and electrical issues are among the most common - [How Humidity Affects Your Mini Split Performance in Burr Ridge](https://a-guy.com/how-humidity-affects-mini-split-performance/) - As temperatures rise, the performance of your mini split AC can significantly influence your indoor comfort. One key factor often overlooked is humidity. In Burr Ridge, where varying humidity levels can affect home environments, understanding how humidity impacts your mini split AC’s performance is essential. When humidity levels are not properly managed, your AC’s ability - [Mini Split Heat Pump Temperature Inconsistencies in Palos Heights](https://a-guy.com/mini-split-heat-pump-temperature-inconsistencies/) - Mini split heat pumps have become increasingly popular in homes for their energy efficiency and ability to provide both heating and cooling. These systems are especially favored for their flexibility, allowing homeowners to control the climate in specific areas without the need for extensive ductwork. However, like any system, mini split heat pumps can face - [Pre-Summer AC System Check Guide for Hickory Hills Residents](https://a-guy.com/pre-summer-ac-system-check-guide/) - As the warm months approach, Hickory Hills residents begin to prepare their homes and systems for the summer heat. A crucial part of this preparation is ensuring that AC systems are in top shape to provide comfort throughout the hottest months. An early AC check not only helps maintain a pleasant indoor environment but also - [Addressing Mini Split Airflow Problems in Oak Lawn](https://a-guy.com/addressing-mini-split-airflow-problems/) - Mini split air conditioners are popular in Oak Lawn for their efficiency and ability to cool specific zones in a home. These systems offer a convenient way to manage temperatures, ensuring comfort throughout the varying seasons. However, like any mechanical system, mini split air conditioners can encounter issues over time. One common problem is airflow - [Why Your Heat Pump Makes Buzzing Sounds in Darien](https://a-guy.com/why-your-heat-pump-buzzes/) - Heat pumps play an essential role in maintaining comfort in homes, particularly in Darien’s varying weather conditions. Known for their efficiency, heat pumps are a practical choice for both heating and cooling needs. However, like any complex piece of machinery, they can encounter issues over time, one of the most mysterious being a buzzing sound. - [Solving Drainage Issues with Your Mini Split AC in Darien](https://a-guy.com/solving-drainage-issues-with-mini-split-ac/) - As residents of Darien enjoy the transition into the warmer months, ensuring that your mini split AC system operates efficiently becomes essential for comfort. One common issue that can disrupt this comfort is drainage problems within the mini split system. Without effective drainage, the system’s performance can decline, leading to water leaks, increased humidity, and - [Why Your Mini Split HVAC System Fan Stops Working in Oak Lawn](https://a-guy.com/mini-split-hvac-fan-stops-working/) - Mini split HVAC systems offer an effective way to maintain comfortable temperatures in your home, providing both heating and cooling functions without the cumbersome ductwork of traditional systems. These systems are particularly favored for their efficiency and ability to control temperatures in individual rooms. In Oak Lawn, where weather can vary quite a bit, having - [Mini Split Heat Pump Defrosting Problems in La Grange](https://a-guy.com/mini-split-heat-pump-defrosting-problems/) - Mini split heat pumps have become a popular choice for many homeowners in La Grange due to their efficiency and flexibility. These systems provide effective heating and cooling solutions without the need for extensive ductwork, making them ideal for homes where traditional HVAC systems may not be practical. As the seasons change, these heat pumps - [Signs of Refrigerant Issues in Your Mini Split Air Conditioner in Palos Heights](https://a-guy.com/refrigerant-issues-in-mini-split-acs/) - Maintaining your mini split air conditioner is crucial for ensuring your home in Palos Heights remains comfortable throughout the warmer months. These systems are known for their efficient cooling capabilities and compact design, making them a popular choice for many homeowners. However, like any other appliance, mini split air conditioners require regular attention to function - [Essential Spring HVAC Maintenance Tips for Hickory Hills Homeowners](https://a-guy.com/essential-spring-hvac-maintenance-tips/) - Springtime in Hickory Hills is a season of renewal, offering the perfect opportunity to perform essential maintenance on your HVAC system. Homeowners often overlook the importance of preparing their heating and cooling systems for the warmer months. Proper maintenance not only ensures efficient operation but also helps prevent unexpected breakdowns when you need your system - [The Impact of Incorrect Mini Split Sizing in Oak Lawn](https://a-guy.com/impact-of-incorrect-mini-split-sizing/) - When choosing a mini split air conditioning system for your home, proper sizing is crucial. In Oak Lawn, residents often face uncomfortable scenarios due to incorrect sizing of their mini split units. Whether it’s too large or too small, an improperly sized unit can lead to a host of issues, from poor efficiency to uneven - [What Those Blinking Lights Mean on Your Heat Pump in Darien](https://a-guy.com/heat-pump-blinking-lights-meaning/) - Understanding the messages conveyed by blinking lights on your heat pump is essential for maintaining efficient functionality and comfort in your Darien home. As a vital component of your heating and cooling system, heat pumps use indicator lights to communicate a variety of statuses and potential issues. When these lights blink, it often signals a - [Troubleshooting Water Leaks in Your Mini Split System in Tinley Park](https://a-guy.com/troubleshooting-mini-split-water-leaks/) - Maintaining a mini split air conditioner is crucial for ensuring comfort and efficiency in your home, especially during warmer seasons in Tinley Park. These systems are popular for their ability to provide targeted cooling, offering great energy efficiency and quiet operation. However, like any HVAC system, they require regular attention to function optimally. One of - [Cost of Ductless Mini Split Installation in Palos Hills, IL](https://a-guy.com/cost-ductless-mini-split-installation-palos-hills-il/) - Cost of a Ductless Heat Pump Installation in Palos Hills, IL The cost of a ductless mini-split heat pump installation in Palos Hills, IL starts at about $6,500 for a single-zone system and goes up from there depending on several factors. Your indoor and outdoor units are selected according to the size of the area - [Why Your Mini Split Heat Pump Short Cycles in Oak Lawn](https://a-guy.com/why-mini-split-heat-pump-short-cycles/) - Mini split heat pumps are a popular choice for homeowners in Oak Lawn seeking an efficient and flexible heating and cooling solution. These systems are known for their ability to effectively regulate temperature in individual rooms or zones, offering comfort tailored to specific needs. However, one common issue that users may encounter with mini split - [How Dirty Filters Affect Your Mini Split Performance in Darien](https://a-guy.com/dirty-filters-affect-mini-split-performance/) - Maintaining a clean mini split system is crucial for ensuring a comfortable and efficient home environment. In Darien, where seasonal changes can affect your heating and cooling needs, keeping your mini split in top condition is vital for optimum performance. A key component to this maintenance routine is the filter. Over time, filters can accumulate - [Preventing Frozen Coils in Your Mini Split AC System in Burr Ridge](https://a-guy.com/prevent-frozen-coils-in-mini-split-ac-systems/) - To maintain a comfortable and efficient home environment in Burr Ridge, taking care of your mini split AC system is crucial. Mini split systems have become increasingly popular due to their energy efficiency and ability to precisely control the temperature in individual rooms. However, without proper attention and maintenance, these systems can develop common issues, - [4 Warning Signs Your Mini Split Air Conditioner Needs Professional Help in Oak Lawn](https://a-guy.com/mini-split-ac-professional-help-signs/) - Maintaining a mini split air conditioner is essential for any household in Oak Lawn. As the warmer months approach, ensuring that your system runs smoothly is crucial for comfortable living. A well-maintained air conditioner not only improves the air quality in your home but also reduces energy costs and extends the system’s lifespan. Unfortunately, many - [Why Your Mini Split Heat Pump Makes Strange Noises in Palos Heights](https://a-guy.com/mini-split-heat-pump-makes-strange-noises/) - Mini split heat pumps are a great option for providing efficient heating in homes, especially during cooler months in Palos Heights. However, homeowners may sometimes notice strange noises coming from their units. Understanding what these sounds mean is important for maintaining the system’s performance and prolonging its lifespan.Addressing these noises promptly can prevent further damage - [Understanding HVAC Emergency Signals in Hickory Hills](https://a-guy.com/hvac-emergency-signals/) - Recognizing HVAC emergency signals is crucial for homeowners in Hickory Hills who want to maintain their systems effectively and avoid costly repairs. As we transition through seasons, the demands on our HVAC systems change, highlighting the importance of being vigilant about any unusual behavior. By understanding these signals, you can ensure your home remains comfortable - [Tips for Finding Reliable AC Companies for Installation](https://a-guy.com/reliable-ac-companies-for-installation/) - Choosing a reliable air conditioning company for installation is vital for ensuring long-term performance and comfort in your home. With a variety of options available, it can be challenging to identify the right company that meets your specific needs. The right choice can make a significant difference, providing efficient and effective cooling solutions tailored to - [Steps to a Smooth Heat Pump Repair with Our Technicians](https://a-guy.com/smooth-heat-pump-repair-steps/) - Heat pumps are integral to maintaining comfortable indoor temperatures year-round. When issues arise, swift and effective repair services become essential. A well-functioning heat pump not only contributes to energy efficiency but also enhances the overall comfort of your living space.Understanding Heat Pump SystemsHeat pumps are essential components of modern HVAC systems, designed to transfer heat - [The Complete Guide to Heating Installation by Our Technicians](https://a-guy.com/guide-to-heating-installation/) - Effective heating installation is vital for maintaining comfort and efficiency in your home. Choosing the right heating system can impact not only the warmth of your living space but also its energy consumption and overall reliability. With various options available, selecting the best system for your home requires an understanding of different heating solutions tailored - [Preventative Tips to Avoid Future HVAC Repairs](https://a-guy.com/avoid-hvac-repairs-preventative-tips/) - Maintaining your HVAC system is crucial for ensuring its efficiency and longevity. Regular care can prevent unexpected breakdowns and costly repairs. Simple steps like scheduling routine checks and performing seasonal maintenance can help protect your investment. Understanding these preventative measures not only enhances performance but also extends the system’s lifespan.Importance of Regular HVAC InspectionsRegular HVAC - [Indicators That Your Home Needs Comprehensive HVAC Services](https://a-guy.com/does-your-home-need-hvac-services/) - Ensuring the comfort and efficiency of your heating and cooling systems is essential for maintaining a pleasant living environment. Identifying when your home requires comprehensive HVAC services can prevent minor issues from escalating into costly repairs. Recognizing early warning signals can aid in maintaining an efficient system that minimizes energy consumption and maximizes comfort.Unusual Noises - [Top Reasons to Hire a Professional Heating Company](https://a-guy.com/hire-a-professional-heating-company/) - Hiring a professional heating company is crucial for maintaining a safe and efficient home environment. Professional technicians have the extensive training and experience necessary to handle complex tasks, ensuring that each component of your heating system runs smoothly. Their expertise spans a wide range of services, from furnace repair and installation to routine maintenance, guaranteeing - [Mini Split Heats and Cools a Finished Basement in Oak Lawn, IL](https://a-guy.com/mini-split-heats-cool-finished-basement-oak-lawn-il/) - Ductless Mini Split – Perfect Heating and Cooling for a Finished Basement in Oak Lawn, ILWhen the homeowners of this ranch-style home in Oak Lawn finished their basement, they were excited to have additional space to use as a flexible family space. They could set it up as a family room to watch movies, or - [Replacing AC With Mitsubishi Intelli-HEAT In Glen Ellyn, IL](https://a-guy.com/replacing-ac-with-mitsubishi-intelli-heat-in-glen-ellyn-il/) - Replacing AC With Mitsubishi Intelli-HEAT In Glen Ellyn, ILWe recently received a call from a homeowner in Glen Ellyn, IL, with a common complaint that we are used to: “My air conditioning isn’t working”. This is very normal for us, and it’s usually the reason that someone contacts an HVAC company. They weren’t sure what - [Maximizing Comfort with Mini Split HVAC Systems](https://a-guy.com/maximize-comfort-with-mini-split-systems/) - Mini split HVAC systems are an innovative solution for homeowners seeking enhanced comfort and flexibility in climate control. These systems provide efficient heating and cooling without the need for bulky ductwork, making them a versatile option for various living spaces. Whether you’re looking to improve temperature regulation in a single room or multiple zones, mini - [How to Determine If It's Time for Furnace Replacement](https://a-guy.com/when-to-replace-your-furnace/) - Recognizing when to replace your furnace is vital for maintaining a comfortable and efficient home environment. Furnaces are integral to home heating, and keeping them in top shape ensures warmth during colder months. Delaying a needed furnace replacement can lead to inefficiencies and unexpected breakdowns, potentially leaving you in the cold when you need warmth - [Choosing the Right HVAC Company for Your Home Needs](https://a-guy.com/choosing-the-right-hvac-company/) - Choosing the right HVAC company is crucial for maintaining a comfortable and efficient home environment. The quality of service you receive significantly affects the performance and longevity of your heating and cooling systems. Making an informed decision ensures that your HVAC needs are met reliably and professionally.Key Factors to Consider When Selecting an HVAC CompanyChoosing - [When to Call Our Experts for Furnace Repair and Troubleshooting](https://a-guy.com/when-to-call-our-experts-for-furnace-repair/) - Your furnace plays a vital role in ensuring your home remains warm and comfortable, especially during the cooler months. However, like any complex system, it can experience issues over time, which require attention to maintain its efficiency and performance. Recognizing when to involve our experts in furnace repair and troubleshooting can prevent minor problems from - [Common Problems Our Technicians Solve in HVAC Repair](https://a-guy.com/hvac-problems-technicians-solve/) - Effective HVAC systems are essential for maintaining the comfort and air quality in your home. However, like all complex systems, they can face various problems over time. Understanding the common issues that affect your HVAC system can help in taking timely corrective actions and ensuring efficient operation.Diagnosing and Fixing Inconsistent Airflow IssuesInconsistent airflow in HVAC - [How to Prepare Your Home for a Furnace Installation](https://a-guy.com/preparing-home-for-furnace-installation/) - A successful furnace installation ensures effective heating in your home, providing comfort during colder months. Preparing for this process involves more than just purchasing a new system. Proper planning and coordination with your heating company are essential for a smooth installation experience.Assessing and Selecting the Right Furnace OptionChoosing the right furnace for your home is - [Key Benefits of Regular Furnace Inspections by Our Technicians](https://a-guy.com/regular-furnace-inspections-benefits/) - Regular furnace inspections are essential for maintaining a comfortable and efficient home. By ensuring your furnace operates at its best, you not only maximize its performance but also prevent unexpected repairs. Our trained technicians provide professional inspections that can offer peace of mind and keep your heating system running smoothly throughout the year.Enhancing Furnace Efficiency - [Signs You Need Expert Heat Pump Repair](https://a-guy.com/expert-heat-pump-repair-needs-signs/) - Heat pumps are vital components of home comfort systems, providing efficient heating and cooling. However, like any other mechanical system, they can experience issues. Recognizing the early signs of trouble can prevent bigger problems and ensure your home remains comfortable all year.Unusual Noises and Sounds from Heat PumpsUnusual noises coming from your heat pump can - [Essential Maintenance Tips to Extend Furnace Lifespan](https://a-guy.com/essential-furnace-maintenance-tips/) - Maintaining your furnace efficiently not only ensures a comfortable home environment but also extends the lifespan of the heating system. Regular maintenance reduces the risk of unexpected breakdowns, keeping your home warm and safe during colder months. By implementing consistent care routines, homeowners can enjoy optimal performance from their furnaces.Conducting Regular Furnace Inspections and MaintenanceRegular - [Why Professional Heat Pump Service is Crucial for Efficiency](https://a-guy.com/heat-pump-service-for-efficiency/) - Heat pumps are crucial elements in maintaining a comfortable home environment, offering both heating and cooling solutions. These versatile systems are praised for their ability to transfer heat efficiently, making them an integral part of many households. To ensure they operate at peak performance, regular maintenance and professional assessments are essential.Understanding the Importance of Professional - [Solutions for Common Winter HVAC Issues](https://a-guy.com/common-winter-hvac-issues-solutions/) - Winter can be a challenging season for maintaining a comfortable and efficient home. Heating systems work harder during the cold months, which can lead to various HVAC issues. Identifying and addressing these problems promptly ensures your home stays warm and your HVAC system runs smoothly.Identifying and Fixing Uneven HeatingUneven heating is a common issue that - [How to Select the Best Furnace Replacement](https://a-guy.com/selecting-best-furnace-replacement/) - Choosing the right furnace replacement is an important decision for maintaining comfort and efficiency in your home. Your furnace is a long-term investment, and selecting the best one requires a careful assessment of various factors. From understanding your heating needs to evaluating different furnace types, making an informed decision ensures your home stays warm during - [Winter Furnace Maintenance Tips for Continuous Heat](https://a-guy.com/winter-furnace-maintenance-continuous-heat/) - Proper furnace maintenance is essential for ensuring your home stays warm throughout the winter months. Regular upkeep can prevent unexpected breakdowns and keep your furnace running efficiently. Neglecting maintenance can lead to higher energy bills and costly repairs, making it important to address these tasks before the cold weather sets in.Check and Replace Air Filters - [Essential Winter HVAC Services for Your Home’s Comfort](https://a-guy.com/essential-winter-hvac-services/) - As winter approaches, it becomes crucial to ensure your HVAC system is ready to handle the cold months ahead. Proper maintenance and timely services can keep your home warm and comfortable throughout the season. Failing to address HVAC issues before winter sets in can lead to unexpected breakdowns and higher energy bills.Comprehensive Furnace Inspection and - [What to Do If Your Heater Breaks Down in Winter](https://a-guy.com/heater-breaks-down-what-to-do/) - A heater breakdown during winter can be a stressful and uncomfortable experience. Knowing the right steps to take can make a significant difference in how quickly you can restore warmth to your home. Immediate action is necessary to maintain comfort and prevent further damage to your heating system.Immediate Steps to Take When Your Heater Breaks - [How Proactive HVAC Repair Saves You Money](https://a-guy.com/proactive-hvac-repair-saves-money/) - Maintaining an HVAC system is crucial for keeping your home comfortable year-round. Proactive HVAC repair goes a long way in ensuring your system runs efficiently, leading to significant cost savings. Many homeowners overlook regular maintenance, only addressing issues when they become severe. This reactive approach often results in more expensive repairs and higher energy bills.Benefits - [Efficient Heating Installation for Winter Comfort](https://a-guy.com/heating-installation-for-winter-comfort/) - Efficient heating installation is crucial for keeping your home warm during winter. A well-installed heating system ensures optimal performance, energy efficiency, and longevity. Understanding the installation process helps you make informed decisions that enhance your home’s comfort.Choosing the Right Heating SystemSelecting the right heating system for your home is essential for efficient heating installation. Various - [How Mini Split Heat Pumps Can Lower Your Heating Costs](https://a-guy.com/mini-split-heat-pumps-lower-costs/) - Keeping heating costs down is a priority for many homeowners, especially during the cold winter months. One cost-effective solution to consider is mini split heat pumps. These systems offer an efficient and flexible way to heat your home, helping to lower your energy bills.Understanding Mini Split Heat PumpsMini split heat pumps, also known as ductless - [Winterizing Your Heat Pump Effectively](https://a-guy.com/winterizing-heat-pump-effectively/) - Preparing your heat pump for winter is essential for ensuring it operates efficiently throughout the colder months. Proper winterization not only extends the lifespan of your heat pump but also improves its performance. Taking the right steps now can save you from unexpected breakdowns and high energy bills later.Inspecting and Cleaning the Heat PumpRegular inspection - [Why Modernizing Your Furnace Can Save You Money](https://a-guy.com/modernizing-furnace-can-save-money/) - Modernizing your furnace is an effective way to save money on energy bills and improve your home’s comfort. As heating systems age, they become less efficient, leading to higher energy consumption and increased costs. A new furnace can provide better performance, making your home warmer and reducing the strain on your wallet.Reduced Energy Costs with - [HVAC Tips to Keep Your Home Warm This Winter](https://a-guy.com/hvac-tips-for-warm-home-this-winter/) - As winter approaches, ensuring your home stays warm and comfortable becomes a top priority. Relying on HVAC services to maintain your heating system can prevent unexpected breakdowns and keep your home cozy. Taking proactive steps to prepare your heating system can also help you avoid costly repairs and ensure efficient operation.Schedule Regular Heating System MaintenanceScheduling - [How to Prevent Winter Furnace Issues](https://a-guy.com/prevent-winter-furnace-issues/) - As winter approaches, the performance of your furnace becomes crucial for maintaining a warm and comfortable home. - [Common Indications of Heat Pump Problems](https://a-guy.com/signs-heat-pump-needs-repair/) - Recognizing when your heat pump needs repair can save you from more extensive and costly problems down the line. - [Winter Preparation for Your Furnace: Essential Tips](https://a-guy.com/winter-furnace-maintenance-tips/) - As winter approaches, ensuring your furnace is in top working condition is essential. Proper furnace maintenance helps avoid unexpected breakdowns and ensures your home stays warm and comfortable. - [Regular HVAC Maintenance: More Important Than You Think](https://a-guy.com/regular-hvac-maintenance-matters/) - Regular HVAC maintenance is more important than many homeowners might think. Your heating and cooling system is crucial for maintaining comfort in your home, yet it often goes unnoticed until a problem arises. - [The Added Value of Choosing a Veteran-Owned Heating Company](https://a-guy.com/veteran-owned-heating-company-value/) - Choosing a heating company is an important decision for homeowners. It’s not just about finding a service provider—it’s about partnering with a company that brings added value and trustworthiness. One such choice is opting for a Veteran-owned heating company. These businesses often come with unique advantages that set them apart from the rest.Understanding the Benefits - [Emergency Furnace Repair Services for Immediate Relief](https://a-guy.com/emergency-furnace-repair-services-now/) - A functioning furnace is essential for keeping your home warm and comfortable during colder months. When your furnace fails unexpectedly, it can leave you and your family in an uncomfortable and potentially unsafe situation. Understanding when you need emergency furnace repair can help you address issues promptly before they escalate.Signs You Need Emergency Furnace RepairRecognizing - [Troubleshooting Common Issues with Mini Split HVAC Systems](https://a-guy.com/troubleshoot-mini-split-hvac-systems/) - Mini split HVAC systems are becoming a popular choice for homeowners due to their efficiency and flexibility. These systems allow for precise temperature control in individual rooms, making them ideal for homes where centralized systems may not be practical. Understanding how these systems work can help you troubleshoot and resolve common issues that may arise.Understanding - [The Process of Professional Furnace Installation Explained](https://a-guy.com/professional-furnace-installation-process/) - Installing a new furnace is a significant investment in your home’s comfort and energy efficiency. Understanding the process of professional furnace installation can help you make informed decisions and ensure everything goes smoothly.Assessing Your Home’s Heating NeedsAssessing your home’s heating needs is the first step in the furnace installation process. This crucial step involves evaluating - [How to Optimize Your Home with Mini Split Heat Pumps](https://a-guy.com/optimize-home-with-mini-split-heat-pumps/) - How to Optimize Your Home with Mini Split Heat Pumps Mini split heat pumps are a modern solution for heating and cooling your home efficiently. Unlike traditional HVAC systems, mini splits offer zoned heating and cooling, allowing you to control the temperature in individual rooms. This can lead to better energy usage and comfort throughout - [Critical Signs You Need HVAC Repair Now](https://a-guy.com/hvac-repair-critical-signs/) - Your HVAC system plays a crucial role in maintaining the comfort of your home. When it’s not working correctly, it can significantly affect your daily life. - [Why You Should Schedule a Furnace Inspection Before Winter](https://a-guy.com/furnace-inspection-before-winter-reasons/) - Why You Should Schedule a Furnace Inspection Before Winter As the colder months approach, ensuring your furnace is in optimal condition becomes a priority. Scheduling a furnace inspection before winter can make a significant difference in how well your heating system performs. Our professionals at A-Guy Heating & Air are dedicated to helping you maintain - [Installing A Mitsubishi Intelli-HEAT System In Naperville, IL](https://a-guy.com/installing-a-mitsubishi-intelli-heat-system-in-naperville-il/) - We installed a new multi-zone Mitsubishi Intelli-HEAT system in Naperville, IL. This home - [How to Deal with Unexpected Heater Breakdowns](https://a-guy.com/unexpected-heater-breakdowns/) - Facing an unexpected heater breakdown can be a stressful experience, especially during the colder months. A sudden loss of heat can disrupt your daily routine and leave your home uncomfortable. Knowing what to do when your heater breaks down is crucial for maintaining a warm and safe environment. This guide provides practical steps to help - [The Importance of Timely Heat Pump Service](https://a-guy.com/timely-heat-pump-service-importance/) - The Importance of Timely Heat Pump Service Timely heat pump service is essential for keeping your heating and cooling system running efficiently. A well-maintained heat pump ensures comfortable temperatures in your home, no matter the season. Regular service can prevent unexpected breakdowns and extend the lifespan of the equipment.Key Benefits of Regular Heat Pump ServiceRegular - [Installing A 3 Zone Mini Split System In La Grange, IL](https://a-guy.com/installing-a-3-zone-mini-split-system-in-la-grange-il/) - We installed a brand new 3 zone ductless mini split system into this home in La Grange, IL - [Installing A Ductless Mini Split In A Naperville, IL Sunroom](https://a-guy.com/installing-a-ductless-mini-split-in-a-naperville-il-sunroom/) - We installed a brand new Mitsubishi Ductless Mini Split system in this Naperville, IL home, in order to heat and cool their home addition. - [Installing A Ductless Mini Split In Clarendon Hills, IL](https://a-guy.com/installing-a-ductless-mini-split-in-clarendon-hills-il/) - Installing A Ductless Mini Split In Clarendon Hills, ILFor this Clarendon Hills homeowner, golfing in the air conditioning was the goal for their home. It doesn’t sound as crazy as you think! 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As a reputable HVAC provider based in Palos Hills, IL, and serving the entire state, - [Furnace Repair In Burr Ridge, IL](https://a-guy.com/hvac/burr-ridge-il/furnace-repair/) - Furnace Repair In Burr Ridge, IL Furnace Repair In Burr Ridge, IL, And Surrounding Areas As temperatures drop, ensuring your home remains warm and comfortable is paramount. At A-Guy Heating & Air, we specialize in expert furnace repair in Burr Ridge solutions to keep your household cozy throughout the winter months. Trust our skilled technicians - [Furnace Maintenance In Burr Ridge, IL](https://a-guy.com/hvac/burr-ridge-il/furnace-maintenance/) - Furnace Maintenance In Burr Ridge, IL Furnace Maintenance In Burr Ridge, IL, And Surrounding Areas At A-Guy Heating & Air, we understand the significance of a well-maintained heating system in providing not just warmth but also comfort and peace of mind. Our commitment to excellence goes beyond the ordinary – we see furnace maintenance as - [Furnace Installation In Burr Ridge, IL](https://a-guy.com/hvac/burr-ridge-il/furnace-installation/) - Furnace Installation In Burr Ridge, IL Furnace Installation In Burr Ridge, IL, And Surrounding Areas Transform your living space with the most reliable furnace installation in Burr Ridge, IL. Did you know that a well-installed furnace can enhance your home’s comfort and contribute to significant energy savings? A-Guy Heating & Air is your trusted partner - [AC Services In Burr Ridge, IL](https://a-guy.com/hvac/burr-ridge-il/ac-services/) - AC Services In Burr Ridge, IL AC Services In Burr Ridge, IL, And Surrounding Areas Escape the sweltering Burr Ridge summers with A-Guy Heating & Air, your trusted partner for top-notch AC Services Burr Ridge. Our team of skilled professionals is dedicated to providing you with superior cooling solutions tailored to meet your specific needs. - [AC Replacement In Burr Ridge, IL](https://a-guy.com/hvac/burr-ridge-il/ac-replacement/) - AC Replacement In Burr Ridge, IL Expert AC Replacement Services by A-Guy Heating & Air When it comes to Burr Ridge’s scorching summers, your air conditioning system isn’t just a luxury; it’s a necessity. Over time, AC units can lose efficiency, consuming nearly 40% of your utility bills. A-Guy Heating & Air is your gateway - [AC Maintenance In Burr Ridge, IL](https://a-guy.com/hvac/burr-ridge-il/ac-maintenance/) - AC Maintenance In Burr Ridge, IL AC Maintenance In Burr Ridge, IL, And Surrounding Areas Unlocking optimal AC performance isn’t just a necessity; it’s a gateway to comfort. Did you know that regular AC maintenance in Burr Ridge can increase your system’s efficiency? At A-Guy Heating & Air, we specialize in elevating your home’s comfort - [AC Repair In Burr Ridge, IL](https://a-guy.com/hvac/burr-ridge-il/ac-repair/) - AC Repair In Burr Ridge, IL AC Repair In Burr Ridge, IL, And Surrounding Areas Are you grappling with the discomfort of a malfunctioning air conditioning system in Burr Ridge, Illinois? The sweltering heat can be unforgiving, and we at A-Guy Heating & Air understand the urgency of restoring your home’s incredible comfort. With a - [AC Installation In Burr Ridge, IL](https://a-guy.com/hvac/burr-ridge-il/ac-installation/) - AC Installation In Burr Ridge, IL AC Installation In Burr Ridge, IL, And Surrounding Areas Unveiling the secret to seamless comfort in Burr Ridge lies in a startling statistic: a well-installed AC system not only elevates indoor living but also increases energy efficiency by up to 40%. Welcome to A-Guy Heating & Air, your pathway - [HVAC Services In Burr Ridge, IL](https://a-guy.com/hvac/burr-ridge-il/) - HVAC Services In Burr Ridge, IL HVAC Services In Burr Ridge, IL, And Surrounding Areas At A-Guy Heating & Air, we recognize that your residence or business deserves nothing but the best in heating, ventilation, and air conditioning. Our journey is rooted in a steadfast commitment to delivering top-tier HVAC Services in Burr Ridge, IL, - [HVAC Company In Palos Hills, IL](https://a-guy.com/hvac/) - HVAC Company In Palos Hills, IL HVAC Company In Palos Hills, Orland Park, Lemont, IL, And Surrounding Areas In the dynamic field of Heating, Ventilation, and Air Conditioning (HVAC), where comfort intersects with efficiency, one name stands out as the pinnacle of excellence – A-Guy Heating & Air. As the premier HVAC Company in Illinois, - [Privacy Policy](https://a-guy.com/about-us/privacy-policy/) - Privacy Policy At A-Guy Heating & Air, accessible from a-guy.com, one of our main priorities is the privacy of our visitors. This Privacy Policy document contains types of information that is collected, recorded, and how we use it.If you have additional questions or require more information about our Privacy Policy, do not hesitate to contact - [Oak Lawn Home Show 2025](https://a-guy.com/oak-lawn-2025/) - Mitsubishi Ductless Mitsubishi Intelli-Heat General Service - [Intelli-HEAT Product Guide Download](https://a-guy.com/intelli-heat-download/) - Intelli-HEAT – The Best of Both Worlds!Keep your gas furnace and add efficient heat pump cooling and heating.HeatsCoolsEnergy EfficientKeep your gas furnace Fill out my Wufoo form! I was looking for a reliable company to install a mini split and spoke to several companies before Paul came out. His customer service was outstanding from the - [Careers](https://a-guy.com/careers/) - First name Last name Phone number Email Experience Resume SUBMIT - [test](https://a-guy.com/test-2/) - Full Name Email Phone Address Experience Upload Resume Sumbit - [HVAC Promotions In Palos Hills, IL](https://a-guy.com/hvac-promotions-palos-hills-il/) - [Thank You for Downloading Intelli-HEAT](https://a-guy.com/thank-you-intelli-heat-download/) - Click here to download your Mitsubishi Train Intelli-HEAT Product Guide - [Mitsubishi Product Guide Download](https://a-guy.com/mitsubishi-product-guide-download/) - Impeccable Comfort All Year Long!See if a ductless mini-split heat pump is right for your situation.HeatsCoolsEnergy EfficientExpandable to Multiple Zones Fill out my Wufoo form! I was looking for a reliable company to install a mini split and spoke to several companies before Paul came out. His customer service was outstanding from the start. He - [Heater Maintenance In Palos Hills, IL](https://a-guy.com/heater-maintenance-palos-hills-il/) - Heater Maintenance In Palos Hills, Orland Park, Lemont, IL, And Surrounding Areas Contact Us For Heater Maintenance In Palos Hills, Orland Park, Lemont, IL, And Surrounding Areas - [American Standard Products](https://a-guy.com/american-standard-products/) - [Reviews](https://a-guy.com/reviews/) - Jeanne R. Eddie W. Bill S. Scott E. Jennifer G. Leo M. Bev P. Previous Page1 Page2 Page3 Next - [AC Repair](https://a-guy.com/ac-repair/) - AC Repair Fixing Broken ACS In Palos Hills Since 2016 You’re looking forward to getting home to your AC after a long day on the town. But, when you open your front door, the air inside is almost as muggy as what’s inside. What gives? It looks like you might have a problem with your - [Air Conditioning Installation In Palos Park, IL](https://a-guy.com/hvac/palos-park-il/air-conditioning-installation/) - Air Conditioning Installation In Palos Park, IL, And Surrounding Areas A-Guy Heating & Air stands as your champion in the battle against oppressive temperatures. We are the Air Conditioning Installation Palos Park experts, intimately familiar with the relentless sun beating down on rooftops and humidity clinging to the air like a damp shroud. We understand - [Air Conditioner Inspection In Tinley Park, IL](https://a-guy.com/hvac/tinley-park-il/air-conditioner-inspection/) - Air Conditioner Inspection In Tinley Park, IL, And Surrounding Areas As the sweltering Illinois summer recedes, memories of sweltering homes and malfunctioning air conditioners might still linger. But rather than dreading potential summer meltdowns, take decisive action now. A-Guy Heating & Air, Tinley Park’s premier provider of air conditioner inspections, empowers you to proactively prepare - [Our Gallery](https://a-guy.com/our-gallery/) - [HVAC Troubleshooter](https://a-guy.com/hvac-troubleshooter/) - What type of problem are you having? Air Conditioning Heating Next » What type of Air Conditioner Problem are you having? My AC isn’t working. My AC is making a strange noise. « Back Next » This can be Caused by your Thermostat: Solution: Make sure your thermostat is turned On Set 3 degrees below - [HVAC Terminology](https://a-guy.com/hvac-terminology/) - ACACCAA-CoilAC or DCAcousticalAFUEAGAAHRIAir cleaner (also Air Filtration System)Air ConditionerAir Filtration System (also Air Cleaner)Air flow volumeAir handlerASHRAEBTUBTUHBurnerBurner OrificeBurner (sealed combustion)CADR Clean Air Delivery Rate (CADR)CapacityCelsiusCertified Matched SystemCFMChargeComfort™ coil (also evaporator coil or indoor coil)CompressorCondensateCondenser coil (or outdoor coil)Condenser fanContactorCrankcase heaterCSADamperDB (Decibels)DCDefrostDegree-dayDehumidifierDiffuserDOEDownflow furnaceDrain panDry bulb temperatureDry bulb thermometerDual CompressorsDuctworkDXEcologicEERElectronic Air Cleaner (EAC)EPAEvaporator coil (also Comfort™ Coil - [HVAC FAQs](https://a-guy.com/hvac-faqs/) - HVAC FAQs What is HVAC? HVAC- Heating, ventilation, and air conditioning- It is a system that provides different types of heating and cooling services to residential and commercial buildings. Its function is to provide thermal comfort, humidity control, and acceptable indoor air quality. How does an Air Conditioner work? The majority of home and smaller - [Sitemap](https://a-guy.com/sitemap/) - Pages2026 Heat Pump Madness GiveawayA-Guys Heating and Air Home Service’sAbout UsAC Companies In Palos Park, ILAC Company In Palos Heights, ILAC Installation In Burr Ridge, ILAC Installation In Oak Lawn, ILAC Maintenance In Burr Ridge, ILAC RepairAC Repair In Burr Ridge, ILAC Repair In Hickory Hills, ILAC Repair In La Grange, ILAC Repair In Oak - [Accessibility Statement](https://a-guy.com/about-us/accessibility-statement/) - Accessibility Statement for A-Guy Heating & Air This is an accessibility statement for A-Guy Heating & Air. Measures to Support Accessibility A-Guy Heating & Air takes the following measures to ensure accessibility of a-guy.com:Include accessibility as part of our mission statement.Include accessibility throughout our internal policies.Integrate accessibility into our procurement practices.Provide continual accessibility training for - [A-Guys Heating and Air Home Service's](https://a-guy.com/all-of-a-guy-home-services-services/) - A-Guys Heating and Air Home Service’s Air Conditioning, Heating, Ductless, Heat Pump, And More! Alsip, IL Bolingbrook, IL Bridgeview, IL Burbank, IL Burr Ridge, IL Butterfield, IL Carol Stream, IL Chicago Ridge, IL Clarendon Hills, IL Crestwood, IL Darien, IL Downers Grove, IL Elmhurst, IL Evergreen Park, IL Frankfort, IL Hinsdale, IL Homer Glen, IL - [Mitsubishi Products](https://a-guy.com/mitsubishi-products/) - [Gallery](https://a-guy.com/gallery/) - [Promotions](https://a-guy.com/promotions/) - [Thank You](https://a-guy.com/thank-you/) - Thanks for contacting us! We will get in touch with you shortly. - [Case Studies](https://a-guy.com/case-studies/) - Case studies by region Select your own All Regions Burr Ridge, ILClarendon Hills, ILDowners Grove, ILEvergreen Park, ILFrankfort, ILGlen Ellyn, ILHomewood, ILLa Grange, ILLombard, ILNaperville, ILOak Lawn, ILOrland Park, ILPlainfield, ILTinley Park, IL Case studies by home Select your own All Home Types Additions and RenovationsBungalowsCape Cod HomesColonial HomesCraftsman StyleFinished BasementsOlder HomesRanch Style HomesSplit Level - [Careers](https://a-guy.com/careers/) - First name Last name Phone number Email Experience Resume SUBMIT - [HVAC Promotions In Palos Hills, IL](https://a-guy.com/hvac-promotions-palos-hills-il/) - [American Standard Products](https://a-guy.com/american-standard-products/) - [Reviews](https://a-guy.com/reviews/) - Jeanne R. Eddie W. Bill S. Scott E. Jennifer G. Leo M. Bev P. Previous Page1 Page2 Page3 Next - [HVAC Terminology](https://a-guy.com/hvac-terminology/) - ACACCAA-CoilAC or DCAcousticalAFUEAGAAHRIAir cleaner (also Air Filtration System)Air ConditionerAir Filtration System (also Air Cleaner)Air flow volumeAir handlerASHRAEBTUBTUHBurnerBurner OrificeBurner (sealed combustion)CADR Clean Air Delivery Rate (CADR)CapacityCelsiusCertified Matched SystemCFMChargeComfort™ coil (also evaporator coil or indoor coil)CompressorCondensateCondenser coil (or outdoor coil)Condenser fanContactorCrankcase heaterCSADamperDB (Decibels)DCDefrostDegree-dayDehumidifierDiffuserDOEDownflow furnaceDrain panDry bulb temperatureDry bulb thermometerDual CompressorsDuctworkDXEcologicEERElectronic Air Cleaner (EAC)EPAEvaporator coil (also Comfort™ Coil - [Sitemap](https://a-guy.com/sitemap/) - Pages2026 Heat Pump Madness GiveawayA-Guys Heating and Air Home Service’sAbout UsAC Companies In Palos Park, ILAC Company In Palos Heights, ILAC Installation In Burr Ridge, ILAC Installation In Oak Lawn, ILAC Maintenance In Burr Ridge, ILAC RepairAC Repair In Burr Ridge, ILAC Repair In Hickory Hills, ILAC Repair In La Grange, ILAC Repair In Oak - [Mitsubishi Products](https://a-guy.com/mitsubishi-products/) - [Gallery](https://a-guy.com/gallery/) ## Case Studies - [Energy-Efficient Heating For A Frankfort, IL Ranch Home](https://a-guy.com/case-study/energy-efficient-heating-for-a-frankfort-il-ranch-home/) - Energy-Efficient Heating For A Frankfort, IL Ranch Home The ProblemThe owners of this ranch home in Frankfort, IL were looking to update their separate heating and cooling systems. Their main goals were finding an energy-efficient system that would save them money on their monthly utility bills while providing reliable year-round comfort.The SolutionA Mitsubishi Intelli-Heat dual-fuel - [Installing Mitsubishi Ductless Hyper Heat In Homewood, IL](https://a-guy.com/case-study/installing-mitsubishi-ductless-hyper-heat-in-homewood-il/) - Mitsubishi Hyper Heat is one of the best HVAC systems when it comes to comfort and energy efficiency. We recently installed this system in Homewood, IL. - [Upgrading An Air Conditioner In Plainfield, IL](https://a-guy.com/case-study/upgrading-an-air-conditioner-in-plainfield-il/) - We recently upgraded an air conditioning system in Plainfield with a new ductless mini split. This unit can provide year round heating and cooling. - [Using Ductless Mini Splits To Comfort A Naperville Home](https://a-guy.com/case-study/using-ductless-mini-splits-to-comfort-a-naperville-home/) - We installed a single-zone ductless mini split for a Naperville home without central AC. They needed additional cooling and a mini split was perfect! - [Installing A Ductless Mini Split In Orland Park, IL](https://a-guy.com/case-study/installing-a-ductless-mini-split-in-orland-park-il/) - When this Orland Park homeowner wanted to find a solution to keeping their addition comfortable all year long, they decided to install a ductless mini split. - [Installing A Ductless Mini Split In A Downers Grove Sunroom](https://a-guy.com/case-study/installing-a-ductless-mini-split-in-a-downers-grove-sunroom/) - This homeowner in Downers Grove recently added a sunroom to their home. They decided to install a ductless mini split system for heating and cooling. - [Installing A Ductless Mini Split In A Naperville, IL Sunroom](https://a-guy.com/case-study/installing-a-ductless-mini-split-in-a-naperville-il-sunroom/) - Installing A Ductless Mini Split In A Naperville, IL SunroomSunrooms, sometimes also called Three Season rooms, can really add living space to your home. Sometimes they are created by enclosing a patio or porch, and they usually are located off the kitchen or family room, extending the space. By featuring so many windows, they give a - [Adding Climate Control For A Closet In Burr Ridge](https://a-guy.com/case-study/adding-climate-control-for-a-closet-in-burr-ridge/) - For this homeowner in Burr Ridge, they needed to make sure their upstairs closet had climate control to protect their valuables. - [A Ductless Mini Split System In Evergreen Park, IL](https://a-guy.com/case-study/a-ductless-mini-split-system-in-evergreen-park-il/) - We recently installed a 3-zone ductless mini split system into a home in Evergreen Park that just wasn't getting enough cooling. - [Replacing An Old Ductless Mini Split In A Lombard Sunroom](https://a-guy.com/case-study/replacing-an-old-ductless-mini-split-in-a-lombard-sunroom/) - When this homeowner in Lombard, IL had a leaky mini split that wasn't heating or cooling their sunroom, we replaced it with a new energy efficient unit! - [Replacing Window ACs With Mini Splits In Tinley Park, IL](https://a-guy.com/case-study/replacing-window-acs-with-mini-splits-in-tinley-park-il/) - Replacing Window ACs With Mini Splits In Tinley Park, ILThis gorgeous Craftsman-style home in Tinley Park had one major drawback- no ductwork, and no central air conditioning. They gave us a call here at A-Guy Heating and Air to see if there was a better solution to keeping them comfortable than the window air conditioners they - [Replacing AC With Mitsubishi Intelli-HEAT In Glen Ellyn, IL](https://a-guy.com/case-study/replacing-ac-with-mitsubishi-intelli-heat-in-glen-ellyn-il/) - Replacing AC With Mitsubishi Intelli-HEAT In Glen Ellyn, ILWe recently received a call from a homeowner in Glen Ellyn, IL, with a common complaint that we are used to: “My air conditioning isn’t working”. This is very normal for us, and it’s usually the reason that someone contacts an HVAC company. They weren’t sure what the problem - [Installing A Mitsubishi Intelli-HEAT System In Naperville, IL](https://a-guy.com/case-study/installing-a-mitsubishi-intelli-heat-system-in-naperville-il/) - Installing A Multi Zone Intelli-HEAT System In Naperville, IL One of the best compliments we can receive is seeing a customer who is happy with their system choose to hire us for more projects. That was the case for this homeowner in Naperville, IL. They had originally called us to help them heat and cool an addition - [Installing A 3 Zone Mini Split System In La Grange, IL](https://a-guy.com/case-study/installing-a-3-zone-mini-split-system-in-la-grange-il/) - Installing A 3 Zone Mini Split System In La Grange, IL Helping a homeowner upgrade the comfort of their space is one of the most rewarding parts of our job. For this project in La Grange, the homeowner was sick of using 3 different window AC units during the summer months, and wanted something better. They wanted some - [Installing A Ductless Mini Split In Clarendon Hills, IL](https://a-guy.com/case-study/installing-a-ductless-mini-split-in-clarendon-hills-il/) - Installing A Ductless Mini Split In Clarendon Hills, IL For this Clarendon Hills homeowner, golfing in the air conditioning was the goal for their home. It doesn’t sound as crazy as you think! They recently installed a new golf simulator in their sunroom, and wanted to be able to use it no matter what time it - [Mini Split Heats and Cools a Finished Basement in Oak Lawn, IL](https://a-guy.com/case-study/mini-split-heats-and-cools-a-finished-basement-in-oak-lawn-il/) - Ductless Mini Split – Perfect Heating and Cooling for a Finished Basement in Oak Lawn, ILWhen the homeowners of this ranch-style home in Oak Lawn finished their basement, they were excited to have additional space to use as a flexible family space. They could set it up as a family room to watch movies, or ## Promotions - [$25 Off On Service Call](https://a-guy.com/promotion/25-off-on-service-call/) - [10% Discount On Installation and Service](https://a-guy.com/promotion/10-discount-on-installation-and-service/) - [$500 Off On Mini-Split Installation](https://a-guy.com/promotion/500-off-on-mini-split-installation/) - [$500 Off On AC Installation](https://a-guy.com/promotion/500-off-on-ac-installation/) - [$500 Off On Furnace Installation](https://a-guy.com/promotion/500-off-on-furnace-installation/) ## Testimonials - [Jennifer G.](https://a-guy.com/testimonial/jennifer-g/) - Paul was so nice to work with. Quick response to our inquiry for service. He did all he could to make it a repair instead of a replacement, but in the end, we needed a new unit. He worked 11 1/2 hours, in one day, cutting out the old unit and installing the new one, - [Diane W.](https://a-guy.com/testimonial/diane-w/) - They came out right away to look at our air on one of the hottest days of the year. They were here on time (within 20 minutes), were very uniform, professional, personable but most of all HONEST! They spent a lot of time getting our air conditioner running and I know MANY other companies would - [Matthew M.](https://a-guy.com/testimonial/matthew-moczarny/) - A stellar worker and an even better human being! Paul was able to stop by at a very short notice and immediately started looking into my unit to find the problem. He was very informative and kind and took great care of cleaning up after himself. Highly recommend Paul to take care of your AC - [Jeanne R.](https://a-guy.com/testimonial/jeanne-r/) - Outstanding, high-quality work! Paul and his staff are so professional, knowledgeable, and efficient. If you want your home services done right, he is the guy to do it. We don't trust anyone else but "A-Guy." - [Eddie W.](https://a-guy.com/testimonial/eddie-w/) - Paul installed a humidifier on my Furnace. He was on time, informed, responsive, courteous, and clean. I was impressed by how well everything was installed. He cleaned up after himself, he went above and beyond by installing the humidifier on my Nest as well. I will definitely use him in the future. Thank you, Paul! - [Bill S.](https://a-guy.com/testimonial/bill-s/) - Paul and his partner do amazing work. Their professionalism and attention to detail make his business a must-use. This was the second time we used AGuy and I’m glad we did. If you want to know about Mitsubishi home mini ductless heat and air he’s the person to call. You will not be disappointed. - [Scott E.](https://a-guy.com/testimonial/scott-e/) - Paul was a true professional. He was on time, clean, organized, and knowledgeable. I had questions and he had answers without making me feel dim and spoke in terms the average person can understand. A-Guy has a customer for life and I will be recommending their services to friends and family. Thanks, Paul! - [Leo M.](https://a-guy.com/testimonial/leo-m/) - Paul is the best! He replaced the HVAC system in my condo. He was not only very reasonably priced, he was prompt, courteous, and patient. He went through everything from start to finish and had me set with an installation date much sooner than expected. Will be recommending it to all who ask. - [Bev P.](https://a-guy.com/testimonial/bev-p/) - A-Guy Heating & Air did an awesome job at our home. They were very professional and friendly. The work was completed in a timely manner, and they did a great job with clean-up. We are thrilled with our new ductless units! I would recommend A-Guy Heating & Air to family & friends! - [Rick G.](https://a-guy.com/testimonial/rick-g/) - I met with eight contractors to get quotes for a mini-split ductless system. Paul from A-Guy clearly had a lot of experience in sizing and installing these systems. He came out and proposed a system that met my needs and showed me several examples of installed systems that A-guy has done. I needed a clean - [Mary R.](https://a-guy.com/testimonial/mary-r/) - Paul was very professional, and courteous & listened to my request for a replacement ductless a/c unit. He kept me informed of order's progress & showed up on the day & time he promised. Upon completion of the project, the old unit was removed from my property, along with all materials the new unit came - [Daniel D.](https://a-guy.com/testimonial/daniel-d/) - A-Guy Heating & Air provided an excellent experience! Paul was knowledgeable, helpful, and wasn't pushy when telling us our options for replacing our AC unit and Furnace. His quality of work was superior to the larger companies we have used in the past. He made himself available throughout the entire process and made us feel - [Jenny P.](https://a-guy.com/testimonial/jenny-p/) - Paul was very professional and easy to talk to. He answered all my questions and explained whatever I didn’t understand. They did both AC and furnace. Definitely recommend. - [Kate M.](https://a-guy.com/testimonial/kate-m/) - Paul is the kind of contractor that you find and never need to look elsewhere. He is thorough, honest, hardworking, and does a quality job. We needed to replace our furnace, and it's a huge investment. Paul walked us through the different kinds of furnaces available now (ours was from 1980...) so that we felt - [Allan B.](https://a-guy.com/testimonial/allan-b/) - Installation was completed by the end of the day. Installers cleaned all materials and dust from the area inside and out. I would recommend A-Guy Heating & Air to anyone looking for professional HVAC installation and services. - [Lucyna R.](https://a-guy.com/testimonial/lucyna-r/) - Paul was very professional, knowledgeable, and hard-working. He did an amazing job placing the ductless heating and a/c in my two-level house. He listened to all my requests and helped me to figure out the best options. He kept me informed of work progress and he finished the huge project on time. At the same - [Amy S.](https://a-guy.com/testimonial/amy-s/) - Paul did an amazing job. He was efficient and had an excellent quality of service. Highly recommend his services. - [Caitlin E.](https://a-guy.com/testimonial/caitlin-e/) - Paul and his team are amazing. I am a new homeowner and new to the area as well. Paul is a small, local, and veteran-owned business. He came and checked out our system and gave advice on how to be more cost-efficient. He went above and beyond by answering my *every* question and even helped - [Donna](https://a-guy.com/testimonial/donna/) - We would recommend A-Guy Home service. Paul and his assistant were very professional and knowledgeable. Paul answered all our questions and addressed our concerns. Paul went above and beyond to make sure we had heat before heat before he left. Thanks ## CM Tooltip Glossary - [Zoning System](https://a-guy.com/glossary/zoning-system/) - A method of dividing a home into different comfort zones so each zone can be independently controlled depending on use and need; an air conditioning system capable of maintaining varying conditions for various rooms or zones. - [Zoning](https://a-guy.com/glossary/zoning/) - A method of dividing a home into different comfort zones so each zone can be independently controlled depending on use and need; an air conditioning system capable of maintaining varying conditions for various rooms or zones. - [Wet Bulb Thermometer](https://a-guy.com/glossary/wet-bulb-thermometer/) - A thermometer whose bulb is covered with a piece of water-soaked cloth. The lowering of temperature that results from the evaporation of water around the bulb indicates the air's relative humidity. - [Watt](https://a-guy.com/glossary/watt/) - The unit of electrical power equal to the flow of one amp at a potential difference of one volt. - [Voltage](https://a-guy.com/glossary/voltage/) - The force that pushes electrical current along wires and cables. - [Volt](https://a-guy.com/glossary/volt/) - The unit of measure used to describe a difference in electrical potential, abbreviated by the symbol "v." - [Vacuum](https://a-guy.com/glossary/vacuum/) - A pressure below atmospheric pressure. A perfect vacuum is 30 inches of mercury (periodic symbol "Hg") - [Upflow furnace](https://a-guy.com/glossary/upflow-furnace/) - A furnace in which air is drawn in through the sides or bottom and discharged out the top. - [UL](https://a-guy.com/glossary/ul/) - Underwriters Laboratories - [U-Factor](https://a-guy.com/glossary/u-factor/) - The factor representing resistance to heat flow of various building materials. - [Two-stage heating/Two-stage cooling](https://a-guy.com/glossary/two-stage-heatingtwo-stage-cooling/) - Two-stage heating and cooling is considered to be more efficient, because it operates at low speed most of the time. However, on days when more heating or air conditioning is required, it switches to the next stage for maximum comfort. - [Two-stage compressor](https://a-guy.com/glossary/two-stage-compressor/) - Compressor composed of a high and low stage to increase efficiency and comfort while reducing operation noise. - [Ton](https://a-guy.com/glossary/ton/) - A unit of measurement used for determining cooling capacity. One ton is the equivalent of 12,000 BTUs per hour. - [Thermostat](https://a-guy.com/glossary/thermostat/) - A thermostat consists of a series of sensors and relays that monitor and control the functions of a heating and cooling system. - [Thermostatic expansion valve](https://a-guy.com/glossary/thermostatic-expansion-valve/) - A refrigerant metering device that maintains a constant evaporator temperature by monitoring suction vapor superheat; also called a thermal expansion valve. - [Split system (also indoor/outdoor system)](https://a-guy.com/glossary/split-system-also-indooroutdoor-system/) - The combination of an outdoor unit (air conditioner or heat pump) with an indoor unit (furnace or air handler). Split systems must be matched for optimum efficiency. - [Spine-Fin™ coil](https://a-guy.com/glossary/spine-fin-coil/) - All-aluminum outdoor coil that features the patented Spine Fin™ design. It provides greater heat-exchanging capabilities (meaning higher efficiencies) and is more resistant to corrosion than a traditional copper/aluminum coil. - [Setpoint](https://a-guy.com/glossary/setpoint/) - The temperature or pressure at which a controller is set with the expectation that this will be a nominal value depending on the range of the controller. - [Sensor](https://a-guy.com/glossary/sensor/) - Any device that reacts to a change in the conditions being measured, permitting the condition to be controlled. - [Sensible heat](https://a-guy.com/glossary/sensible-heat/) - That heat which, when added to or taken away from a substance, causes a rise or fall in temperature. - [Self-contained system](https://a-guy.com/glossary/self-contained-system/) - A refrigerating system that can be moved without disconnecting any refrigerant lines; also known as a package unit. - [SEER](https://a-guy.com/glossary/seer/) - Seasonal Energy Efficiency Ratio; a measure of cooling efficiency for air conditioners and heat pumps. The higher the SEER, the more energy efficient the unit. - [Refrigerant lines](https://a-guy.com/glossary/refrigerant-lines/) - Two copper lines connecting the outdoor condenser to the indoor evaporator coil. - [Refrigerant charge](https://a-guy.com/glossary/refrigerant-charge/) - The required amount of refrigerant in a system. - [Recycling](https://a-guy.com/glossary/recycling/) - Removing, cleaning and reusing refrigerant. - [Reclaiming](https://a-guy.com/glossary/reclaiming/) - Returning used refrigerant to the manufacturer for disposal/reuse. - [Reciprocating compressor](https://a-guy.com/glossary/reciprocating-compressor/) - A compressor whose piston or pistons move back and forth in the cylinders. - [PVC](https://a-guy.com/glossary/pvc/) - Polyvinyl chloride; a type of plastic. - [PSIG](https://a-guy.com/glossary/psig/) - Pounds per square inch gauge. - [PSIA](https://a-guy.com/glossary/psia/) - Per square inch, absolute. - [PSI](https://a-guy.com/glossary/psi/) - Pounds per square inch. - [Payback analysis](https://a-guy.com/glossary/payback-analysis/) - Number of years required before your monthly energy savings offset the original HVAC investment. - [Packaged unit (or Packaged system)](https://a-guy.com/glossary/packaged-unit-or-packaged-system/) - A single cabinet, typically installed outside, that houses both - [Packaged system (or Packaged unit)](https://a-guy.com/glossary/packaged-system-or-packaged-unit/) - A single cabinet, typically installed outside, that houses both heating and cooling components. - [Outdoor coil (also Condenser coil)](https://a-guy.com/glossary/outdoor-coil-also-condenser-coil/) - In a heat pump, it takes in heat to warm your home. In an air conditioner, it dissipates heat from the refrigerant, changing the refrigerant from vapor to liquid to cool your home. - [Orifice](https://a-guy.com/glossary/orifice/) - An opening or hole; an inlet or outlet - [Operating cost](https://a-guy.com/glossary/operating-cost/) - Cost of running your home comfort system, based on energy usage - [OEM](https://a-guy.com/glossary/oem/) - Original Equipment Manufacturer - [NEMA](https://a-guy.com/glossary/nema/) - National Electrical Manufacturing Association - [NEC](https://a-guy.com/glossary/nec/) - National Energy Council / National Electric Code - [NATE](https://a-guy.com/glossary/nate/) - North American Technician Excellence—certification acknowledging a dealer/technician as one of the most knowledgeable and experienced at installing and servicing high-performance, precision-engineered heating and cooling systems. - [Media](https://a-guy.com/glossary/media/) - The material in a filter that traps and holds the impurities. - [Load calculation](https://a-guy.com/glossary/load-calculation/) - Assessed by a dealer, the calculation factors in a number of criteria in your home (square footage, number of windows, year-round weather concerns) and determines what size components you should include as part of your total comfort system. - [Latent heat](https://a-guy.com/glossary/latent-heat/) - A type of heat, which when added to or taken from a substance, does not change the temperature of the substance. Instead, the heat energy enables the substance to change its state. - [Kilowatt (kW)](https://a-guy.com/glossary/kilowatt-kw/) - 1,000 watts - [Inverter Compressor](https://a-guy.com/glossary/inverter-compressor/) - The air conditioner and heat pump utilize inverter technology compressors to convert the electrical current from AC to DC. In doing so, the systems almost infinitely vary the compressor and fan speed motors. The air conditioner and heat pump can modulate anywhere from 40% to 100% of capacity, instantly adjusting to exactly offset the demands - [Indoor/Outdoor system (also split system)](https://a-guy.com/glossary/indooroutdoor-system-also-split-system/) - The combination of an outdoor unit (air conditioner or heat pump) with an indoor unit (furnace or air handler). Split systems must be matched for optimum efficiency. - [Indoor coil (also Comfort™ Coil or evaporator coil)](https://a-guy.com/glossary/indoor-coil-also-comfort-coil-or-evaporator-coil/) - Part of an indoor air unit, it functions with the air conditioner or heat pump outdoors to cool and condition indoor air that flows over it by drawing out heat and moisture. - [Ignition](https://a-guy.com/glossary/ignition/) - The lighting of a fuel to make it burn. - [Hybrid system (also Hybrid Heat)](https://a-guy.com/glossary/hybrid-system-also-hybrid-heat/) - This type of system provides energy-efficient comfort for moderate heating conditions. Depending on the weather and your comfort needs, it can use either gas or electricity, with an electric heat pump as the outdoor component and a gas furnace the indoor component. - [Hybrid heat (also Hybrid System)](https://a-guy.com/glossary/hybrid-heat-also-hybrid-system/) - Provides energy-efficient comfort for moderate heating conditions. Can use either gas or electricity. - [HVAC](https://a-guy.com/glossary/hvac/) - Abbreviation for Heating, Ventilating and Air Conditioning. - [Humidity, relative](https://a-guy.com/glossary/humidity-relative/) - The amount of moisture in the air expressed as a percentage of the maximum amount that the air is capable of holding at a specific temperature. - [Humidity, absolute](https://a-guy.com/glossary/humidity-absolute/) - Weight of water vapor per cubic foot of dry air, expressed as grains of moisture per cubic foot. - [Humidity](https://a-guy.com/glossary/humidity/) - The presence of water vapor in the air. - [Humidistat](https://a-guy.com/glossary/humidistat/) - A humidity-sensing control that cycles the humidifier on and off. - [Humidifier](https://a-guy.com/glossary/humidifier/) - A machine that adds water vapor to the air to increase humidity. - [HSPF](https://a-guy.com/glossary/hspf/) - Heating Seasonal Performance Factor. This rating is used in measuring the heating efficiency of a heat pump. The higher the number, the more efficient the heat pump system. - [Horizontal flow](https://a-guy.com/glossary/horizontal-flow/) - Often used in attics/crawl spaces, this furnace takes air from its side, heats it and sends warm air out the other side. - [Hertz](https://a-guy.com/glossary/hertz/) - In alternating current (AC electricity), the number of cycles per second. - [HEPA filter](https://a-guy.com/glossary/hepa-filter/) - Filter that traps airborne particles by forcing air through very dense mesh. - [Heat transfer](https://a-guy.com/glossary/heat-transfer/) - The movement of heat energy from one point to another. The means for such movement are conduction, convection, and radiation. - [Heat pump](https://a-guy.com/glossary/heat-pump/) - A mechanical-compression cycle refrigeration system that can be reversed to either heat or cool the controlled space. - [Heat loss](https://a-guy.com/glossary/heat-loss/) - The rate of heat transfer from a heated space to the outdoors. - [Heating coil](https://a-guy.com/glossary/heating-coil/) - Any coil that serves as a heat source. - [Heat gain](https://a-guy.com/glossary/heat-gain/) - Heat added to the conditioned space by infiltration, solar radiation, occupant respiration and lighting. - [Heat exchanger](https://a-guy.com/glossary/heat-exchanger/) - An area, box or coil where heat flows from the warmer to the colder fluid or surface. The major part of the furnace that transfers heat into your home. - [Gas furnace heat exchanger](https://a-guy.com/glossary/gas-furnace-heat-exchanger/) - Located in the furnace, the heat exchanger transfers heat to the surrounding air, which is then pumped throughout your home. - [GAMA](https://a-guy.com/glossary/gama/) - Gas Appliance Manufacturers Association - [Fuse](https://a-guy.com/glossary/fuse/) - A metal strip in an electrical circuit that melts and breaks the circuit when excessive current flows through it. The fuse is designed to break in order to save more expensive electrical components. - [Furnace](https://a-guy.com/glossary/furnace/) - That part of the heating system in which the combustion of fossil fuel and transfer of heat occurs. - [Flue](https://a-guy.com/glossary/flue/) - Any vent or passageway that carries the products of combustion from a furnace. - [Filter](https://a-guy.com/glossary/filter/) - Any device that removes impurities through a straining process. - [Fan](https://a-guy.com/glossary/fan/) - Any device that creates air currents. - [Fahrenheit](https://a-guy.com/glossary/fahrenheit/) - The temperature scale on which water freezes at 32 degrees and boils at 212 degrees, designated by the letter F. To convert Fahrenheit to Celsius, subtract 32 from the Fahrenheit number, multiply by 5 and divide by 9 (77–32 equals 45, times 5 equals 225, divided by 9 equals 25 degrees Celsius). - [Evaporator coil (also Comfort™ Coil or Indoor coil)](https://a-guy.com/glossary/evaporator-coil-also-comfort-coil-or-indoor-coil/) - Part of an indoor air unit, it functions with the air conditioner or heat pump outdoors to cool and condition indoor air that flows over it by drawing out heat and moisture. - [Expansion valve](https://a-guy.com/glossary/expansion-valve/) - A refrigerant-metering valve with a pressure- or temperature-controlled orifice. - [EPA](https://a-guy.com/glossary/epa/) - Environmental Protection Agency - [Electronic Air Cleaner (EAC)](https://a-guy.com/glossary/electronic-air-cleaner-eac/) - Electronically filters out magnetized airborne particles from contaminants in indoor air, sending them to a collector plate. - [EER](https://a-guy.com/glossary/eer/) - Energy Efficiency Ratio (steady state) - [Ecologic](https://a-guy.com/glossary/ecologic/) - Maytag’s designation of green heating and cooling equipment. - [DX](https://a-guy.com/glossary/dx/) - Direct expansion; a system in which heat is transferred by the direct expansion of refrigerant. - [Ductwork](https://a-guy.com/glossary/ductwork/) - A pipe or conduit through which air is delivered. Ducts are typically made of metal, fiberboard or a flexible material. In a home comfort system, the size and application of ductwork is critical to performance and is as important as the equipment. - [Dual Compressors](https://a-guy.com/glossary/dual-compressors/) - An outdoor unit featuring two compressors, one for everyday cooling and a second larger one for extreme temperature days. Provides superior durability designed for cost-saving efficiency and low sound levels. - [Dry bulb thermometer](https://a-guy.com/glossary/dry-bulb-thermometer/) - An instrument that measures air temperature independently of humidity. - [Dry bulb temperature](https://a-guy.com/glossary/dry-bulb-temperature/) - Heat intensity, measured by a dry bulb thermometer. - [Drain pan](https://a-guy.com/glossary/drain-pan/) - This is also referred to as a condensate pan. This is a pan used to catch and collect condensate (in residential system's vapor is liquefied on the indoor coil, collected in the drain pan and removed through a drain line). - [Downflow furnace](https://a-guy.com/glossary/downflow-furnace/) - A furnace that intakes air at its top and discharges air at its bottom. - [DOE](https://a-guy.com/glossary/doe/) - Department of Energy - [Diffuser](https://a-guy.com/glossary/diffuser/) - A grille over an air supply duct having vanes to distribute the discharging air in a specific pattern or direction. - [Dehumidifier](https://a-guy.com/glossary/dehumidifier/) - An air cooler that removes moisture from the air. - [Degree-day](https://a-guy.com/glossary/degree-day/) - A degree-day is a computation that gauges the amount of heating or cooling needed for a building. A degree-day is equal to 65 degrees Fahrenheit minus the mean outdoor temperature. - [Defrost](https://a-guy.com/glossary/defrost/) - To melt frost (as in from an air conditioner or heat pump coil). - [DC](https://a-guy.com/glossary/dc/) - Direct current electricity. This type of electricity (as opposed to Alternating Current, or AC) flows in one direction only, without reversing polarity. - [DB (Decibels)](https://a-guy.com/glossary/db-decibels/) - A unit to measure sound. - [Damper](https://a-guy.com/glossary/damper/) - Found in ductwork, this movable plate opens and closes to control airflow. Dampers can be used to balance airflow in a duct system. They are also used in zoning to regulate airflow to certain rooms. - [CSA](https://a-guy.com/glossary/csa/) - Canadian Standards Association. - [Crankcase heater](https://a-guy.com/glossary/crankcase-heater/) - This is the electric resistance heater installed on compressor crankcases to boil off liquid refrigerant that may have combined with compressor oil. Many newer cooling systems do not require crankcase heaters, however heat pumps do require crankcase heaters. - [Contactor](https://a-guy.com/glossary/contactor/) - A switch that can repeatedly cycle, making and breaking an electrical circuit. When sufficient current flows through the A-coil built into the contactor, the resulting magnetic field causes the contacts to be pulled in or closed. - [Condenser fan](https://a-guy.com/glossary/condenser-fan/) - The fan that circulates air over the air-cooled condenser. - [Condenser coil (or outdoor coil)](https://a-guy.com/glossary/condenser-coil-or-outdoor-coil/) - Part of the outdoor portion of a heating or cooling system, which releases or collects heat from the outside air. - [Condensate](https://a-guy.com/glossary/condensate/) - Vapor that liquefies due to the lowering of its temperature to the saturation point. - [Compressor](https://a-guy.com/glossary/compressor/) - This is the heart of an air conditioning or heat pump system. It is part of the outdoor unit and pumps refrigerant in order to meet the cooling requirements of the system. - [Comfort™ coil (also evaporator coil or indoor coil)](https://a-guy.com/glossary/comfort-coil-also-evaporator-coil-or-indoor-coil/) - Part of an indoor air unit, it functions with the air conditioner or heat pump outdoors to cool and condition indoor air that flows over it by drawing out heat and moisture. - [Charge](https://a-guy.com/glossary/charge/) - To add refrigerant to a system. This is refrigerant contained in a sealed system or in the sensing bulb to a thermostatic expansion valve. - [CFM](https://a-guy.com/glossary/cfm/) - Abbreviation for cubic feet per minute, a standard measurement of airflow. A typical system requires 400 cfm of air flow per ton of air conditioning. - [Certified Matched System](https://a-guy.com/glossary/certified-matched-system/) - The Air Conditioning, Heating and Refrigeration Institute (AHRI) puts heating and cooling equipment through rigorous certification processes to ensure systems deliver the promised performance at certain test conditions. - [Celsius](https://a-guy.com/glossary/celsius/) - The metric temperature scale in which water freezes at zero degrees and boils at 100 degrees, designated by the symbol "C". To convert to Fahrenheit, multiply a Celsius temperature by 9, divide by 5 and add 32 (25 x 9 equals 225, divided by 5 equals 45, plus 32 equals 77 degrees Fahrenheit). - [Capacity](https://a-guy.com/glossary/capacity/) - The output or producing ability of cooling or heating systems. Cooling and heating capacities are referred to in British thermal units (BTUs) per hour. - [CADR Clean Air Delivery Rate (CADR)](https://a-guy.com/glossary/cadr-clean-air-delivery-rate-cadr/) - Provides the number of cubic feet of clean air that a unit delivers each minute. Efficiency of the system times the airflow of the system. - [Burner (sealed combustion)](https://a-guy.com/glossary/burner-sealed-combustion/) - A burner that obtains all air for combustion from outside the heated space. - [Burner Orifice](https://a-guy.com/glossary/burner-orifice/) - The opening through which gas flows to the air/gas mixing chamber of the burner. - [Burner](https://a-guy.com/glossary/burner/) - A device that uses fuel to support combustion. - [BTUH](https://a-guy.com/glossary/btuh/) - British thermal units per hour. 12,000 BTUH equals one ton of cooling. - [BTU](https://a-guy.com/glossary/btu/) - British thermal unit; the amount of heat required to raise or lower the temperature of one pound of water one degree Fahrenheit. The heat extracted from your home by an air conditioner is measured in BTUs. - [ASHRAE](https://a-guy.com/glossary/ashrae/) - American Society of Heating, Refrigeration and Air Conditioning Engineers- ASHRAE is an international voluntary organization for people involved in heating, ventilation, air conditioning, or refrigeration (HVAC&R). The society promotes the general sciences of HVAC&R. The main Society headquarters is located in Atlanta, Georgia with local chapters located across the United States and throughout the world. - [AHRI](https://a-guy.com/glossary/ahri/) - Air Conditioning, Heating & Refrigeration Institute - [Air handler](https://a-guy.com/glossary/air-handler/) - An air moving and/or mixing unit. Residential air handlers include a blower, a coil, an expansion device, a heater rack and a filter. Heaters for air handlers are sold as accessories. In some models, heaters are factory installed. The portion of your heating and cooling system that forces air through your home’s ductwork. - [Air flow volume](https://a-guy.com/glossary/air-flow-volume/) - The amount of air the system circulates through your home, expressed in cubic feet per minute (cfm). Proper air flow depends on the outdoor unit, the indoor unit, the ductwork and even whether the filters are clean. - [Air Filtration System (also Air Cleaner)](https://a-guy.com/glossary/air-filtration-system-also-air-cleaner/) - Removes airborne allergens from your home. - [Air cleaner (also Air Filtration System)](https://a-guy.com/glossary/air-cleaner-also-air-filtration-system/) - Removes airborne allergens from your home. - [Air Conditioner](https://a-guy.com/glossary/air-conditioner/) - Any device that can change the temperature, humidity or general quality of the air. More specifically, an air conditioner makes your home cooler, by drawing heat energy out of the house and transferring that heat to the outdoors - [AGA](https://a-guy.com/glossary/aga/) - Abbreviation for American Gas Association, Inc. - [AFUE](https://a-guy.com/glossary/afue/) - Annual Fuel Utilization Efficiency. A measure of a gas furnace's efficiency in converting fuel to energy—the higher the rating, the more efficient the unit. - [A-Coil](https://a-guy.com/glossary/a-coil/) - A heat exchanger (evaporator coil) consisting of two diagonal coils that are joined together in a manner that looks like the letter "A". - [AC or DC](https://a-guy.com/glossary/ac-or-dc/) - Abbreviation for equipment capable of operating on alternating or direct current. - [Acoustical](https://a-guy.com/glossary/accoustical/) - Of or pertaining to sound. - [ACCA](https://a-guy.com/glossary/acca/) - Air-Conditioning Contractors of America. - [AC](https://a-guy.com/glossary/ac/) - AC, A.C. or Ac may refer to: Air conditioning, technologies for altering the temperature and humidity of air; Alternating current, a type of electrical current in which the current repeatedly changes direction. - [Evaporator coil (also Comfort™ Coil or Indoor coil)](https://a-guy.com/glossary/evaporator-coil-also-comfort-coil-or-indoor-coil/) - Part of an indoor air unit, it functions with the air conditioner or heat pump outdoors to cool and condition indoor air that flows over it by drawing out heat and moisture. - [Comfort™ coil (also evaporator coil or indoor coil)](https://a-guy.com/glossary/comfort-coil-also-evaporator-coil-or-indoor-coil/) - Part of an indoor air unit, it functions with the air conditioner or heat pump outdoors to cool and condition indoor air that flows over it by drawing out heat and moisture. ## Categories - [Uncategorized](https://a-guy.com/category/uncategorized/) - [AC Maintenance](https://a-guy.com/category/ac-maintenance/) - [Heat Pumps](https://a-guy.com/category/heat-pumps/) - [AC System](https://a-guy.com/category/ac-system/) - [HVAC System](https://a-guy.com/category/hvac-system/) - [HVAC Maintenance](https://a-guy.com/category/hvac-maintenance/) - [Heat Pump Installation](https://a-guy.com/category/heat-pump-installation/) - [Furnace](https://a-guy.com/category/furnace/) - [Ductless Mini Splits](https://a-guy.com/category/ductless-mini-splits/) - [Case Studies](https://a-guy.com/category/case-studies/) - Real stories about ductless mini-split heat pump installations done by A-Guy Heating and Air in and around Palos Hills, Illinois. - [Tinley Park](https://a-guy.com/category/tinley-park/) - [Heater](https://a-guy.com/category/heater/) - [Intelli-HEAT](https://a-guy.com/category/intelli-heat/) - [Heating](https://a-guy.com/category/heating/) ## Tags - [Ductless mini splits](https://a-guy.com/tag/ductless-mini-splits/) - [Mini Split Installation](https://a-guy.com/tag/mini-split-installation/) - [Ductless Air Conditioning](https://a-guy.com/tag/ductless-air-conditioning/) - [Tinley Park](https://a-guy.com/tag/tinley-park/) - [ductless mini split](https://a-guy.com/tag/ductless-mini-split/) - [heat pump installation](https://a-guy.com/tag/heat-pump-installation/) - [Sunroom HVAC](https://a-guy.com/tag/sunroom-hvac/) - [Addition HVAC](https://a-guy.com/tag/addition-hvac/) - [ductless mini split installation](https://a-guy.com/tag/ductless-mini-split-installation/) - [Window AC Units](https://a-guy.com/tag/window-ac-units/) - [intelli-heat](https://a-guy.com/tag/intelli-heat/) - [furnace](https://a-guy.com/tag/furnace/) - [naperville](https://a-guy.com/tag/naperville/) - [heat pump](https://a-guy.com/tag/heat-pump/) - [HVAC Replacement](https://a-guy.com/tag/hvac-replacement/) - [Furnace Replacement](https://a-guy.com/tag/furnace-replacement/) - [AC Replacement](https://a-guy.com/tag/ac-replacement/) ## Regions - [Lombard, IL](https://a-guy.com/case-study-region/hvac-case-studies-lombard-il/) - Examples of residential heating and air conditioning installations in and around Lombard, IL. - [Plainfield, IL](https://a-guy.com/case-study-region/hvac-case-studies-plainfield-il/) - Examples of residential heating and air conditioning installations in and around Plainfield, IL. - [Naperville, IL](https://a-guy.com/case-study-region/hvac-case-studies-naperville-il/) - Examples of residential heating and air conditioning installations in and around Naperville, IL. - [Homewood, IL](https://a-guy.com/case-study-region/hvac-case-studies-homewood-il/) - Examples of residential heating and air conditioning installations in and around Homewood, IL. - [Orland Park, IL](https://a-guy.com/case-study-region/hvac-case-studies-orland-park-il/) - Examples of residential heating and air conditioning installations in and around Orland Park, IL. - [Evergreen Park, IL](https://a-guy.com/case-study-region/hvac-case-studies-evergreen-park-il/) - Examples of residential heating and air conditioning installations in and around Evergreen Park, IL. - [Downers Grove, IL](https://a-guy.com/case-study-region/hvac-case-studies-downers-grove/) - Examples of residential heating and air conditioning installations in and around Downers Grove, IL. - [Burr Ridge, IL](https://a-guy.com/case-study-region/hvac-case-studies-burr-ridge-il/) - Examples of residential heating and air conditioning installations in and around Burr Ridge, IL. - [Oak Lawn, IL](https://a-guy.com/case-study-region/hvac-case-studies-oak-lawn-il/) - Examples of heating and air conditioning installations in and around Oak Lawn, IL. - [Clarendon Hills, IL](https://a-guy.com/case-study-region/hvac-case-studies-clarendon-hills/) - Examples of residential heating and air conditioning installations in and around Clarendon Hills, IL. - [La Grange, IL](https://a-guy.com/case-study-region/hvac-case-studies-la-grange-il/) - Examples of heating and cooling installations in and around La Grange, IL. - [Glen Ellyn, IL](https://a-guy.com/case-study-region/hvac-case-studies-glen-ellyn-il/) - Examples of residential heating and air conditioning installations in and around Glen Ellyn, IL. - [Tinley Park, IL](https://a-guy.com/case-study-region/hvac-case-studies-tinley-park-il/) - Examples of residential heating and air conditioning installations in and around Tinley Park, IL. - [Frankfort, IL](https://a-guy.com/case-study-region/hvac-case-studies-frankfort-il/) - Examples of residential heating and air conditioning installations in and around Frankfort, IL. ## Home Types - [Ranch Style Homes](https://a-guy.com/case-study-home-type/ranch-style-homes/) - Examples of HVAC installations in Rancher style homes in and around Bridgeview, IL. - [Traditional](https://a-guy.com/case-study-home-type/traditional/) - [Colonial Homes](https://a-guy.com/case-study-home-type/colonial-homes/) - Examples of HVAC installations in Colonial homes in and around Bridgeview, IL. - [Split Level Homes](https://a-guy.com/case-study-home-type/split-level-homes/) - Examples of HVAC installations in Split-Level homes in and around Bridgeview, IL. - [Bungalows](https://a-guy.com/case-study-home-type/bungalows/) - Examples of HVAC installations in Bungalow style homes in and around Bridgeview, IL. - [Older Homes](https://a-guy.com/case-study-home-type/older-homes/) - Examples of HVAC installations in Older and Historic Homes in and around Bridgeview, IL. - [Cape Cod Homes](https://a-guy.com/case-study-home-type/cape-cod-homes/) - Examples of HVAC installations in Cape Code Style Homes in and around Bridgeview, IL. - [Sun Rooms](https://a-guy.com/case-study-home-type/sun-rooms/) - Examples of HVAC installations in Sun Rooms and Florida Rooms in and around Bridgeview, IL. - [Additions and Renovations](https://a-guy.com/case-study-home-type/additions-renovations/) - Examples of HVAC installations in Additions and Renovations in and around Bridgeview, IL. - [Finished Basements](https://a-guy.com/case-study-home-type/finished-basements/) - Examples of HVAC installations in Finished Basements in and around Bridgeview, IL. - [Craftsman Style](https://a-guy.com/case-study-home-type/hvac-case-studies-craftsman-style-home/) - Examples of residential heating and air conditioning installations in and around Craftsman Style Homes in and around East Dundee, IL.