Residential HVAC

When replacing or updating your furnace or air handler you will need to know your system configuration. Click "Read More" to watch our video!

When selecting a new furnace, understanding the cabinet width is crucial for a seamless installation. Furnace cabinets typically come in standard widths—14.5", 17.5", 21", and 24.5"—which correspond to different airflow capacities and ductwork sizes. Choosing the correct width ensures optimal airflow, energy efficiency, and compatibility with existing duct systems. Before purchasing, measure your current setup and consult with HVAC professionals to determine the best fit for your home.

Understanding the difference between single stage, two stage, and variable speed air conditioners and heat pumps. When purchasing a new air conditioner or heat pump it is important to know the different options you have and how they will affect your efficiency and comfort.

If you've ever wondered how heat pumps work, click "Read More" to watch our video!

This video takes a look at the most common home HVAC system: Furnace and air conditioning split systems, also known simply as split systems. We'll walk you through what these systems are and how they work. There's a good chance that your home has a split system, so it's important to understand how your ac unit and furnace work together to heat and cool your home. Click "Read More" to watch our video!

Dual fuel HVAC systems combine an electric heat pump with a traditional gas furnace to deliver the most energy‑efficient home heating and cooling solution. By automatically switching to the gas unit when outdoor temperatures drop below the balance point, they ensure reliable warmth while optimizing energy costs in cold climates.

This video will explain the different system available at HVACDirect.com and how to make an educated purchase.

Learn how to buy your HVAC system online!

Simply take your shopping list of your system needs and use those specifications to filter down to the right HVAC system for your home. Start by going to the top navigation, selecting the type of equipment you are looking for.

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Buying your heating and cooling system online saves you money – and you don’t have to be an HVAC expert to do it! We’ll walk you through how to determine what to shop for to replace your home HVAC system.

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What size air conditioner do you need? This video takes you through our Air Conditioner & Furnace Size Calculator. We’ll walk you through how to size your HVAC system using our sizing calculator.

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Your gas furnace's flue pipe is a very important component of your home HVAC system - and this video covers why it's important and what you need to know about it. We'll tell you what a flue pipe is and what it does; we'll also cover the different types of flue pipes and how they pair with different types of furnaces. (Note: This video is for demonstration purposes only and should not be repeated at home. Always have a licensed HVAC technician install your furnace or AC system.)

The first steps in the buying process are all about determining “what” you need to buy, since most likely you are not a heating and cooling expert. In this video, we’ll ask you a series of questions to determine what you need. We recommend you write down the answers to these questions so at the end you’ll have an easy list and description of how to buy your new heating and cooling system.

There are many different acronyms by which efficiency is labeled. You have probably heard of some like EER, HSPF, or SEER but what exactly do they mean and what process do they use to determine these numbers? Well I am here to explain and better help you with future purchases in the HVAC world.

Blower motors are a crucial part of every furnace. Before you purchase your next furnace it is important to understand the different types of blower motors and how they affect you.

The #1 question we get is “How much does it cost?” The most common answer is, “It depends.” But in this article, we’ll break that cost down so that you have a much better idea of what to expect when you’re shopping.

A Filter is a very important part of an HVAC system. Replacing regularly will not only improve the quality of air in your home but will also prolong the life of your furnace. Not taking care of the filter will result in greatly increased health risks due to air contamination and a shorter life span of the furnace.

The field of HVAC manufacturers is getting crowded. A newcomer battles established brands for a share of the market, and the consumer stands to gain from the competition, if he chooses wisely. The best HVAC brands are often the names you have heard for years, owned by the best HVAC companies in the industry, but do not overlook the new kids on the block. 

AirQuest HVAC systems have long been recognized for delivering reliable performance, smart technology features like SmartSense™ and Wi-Fi compatibility, and competitive pricing. As of 2025, the AirQuest product line has been replaced by ACiQ, continuing the legacy of quality and innovation in residential heating and cooling solutions.