Residential HVAC

This is a question HVAC installers get asked all the time - Why is my upstairs hot even with my air conditioner on? This is understandably very frustrating for homeowners when you just want a nice cool upstairs. In this video, Zach will explain why this happens and give a few tips on how to fix this issue.

A common HVAC question homeowners ask is "why is my air conditioner leaking water?" Seeing water pouring out of an air conditioner can be a scary and frustrating situation. Don't worry, it can be a very simple fix and we want to help you troubleshoot this issue!

A very common question homeowners ask HVAC technicians is "why is my furnace blowing cold air?" or "why isn't my furnace working?". We know this can be frustrating, especially during the cold season. The good news is, it can be a very easy fix.

A common question HVAC installers get is "Why isn't my Air Conditioner Blowing Cold Air?" or "Why is my air conditioner blowing hot air?" In this video, Zach will explain what the main causes are, what you can do yourself, and what your technician should be looking for.

With the cost of everything going up, we are always looking for ways we can save money. In this video we will give you some money saving tips on how to save on those high energy bills!

A family in Ohio was quoted over $12,000 for a new HVAC system, so they contacted us to see how much they could save. Read below to see the difference shopping online with hvacdirect.com can make.

Get clear answers to your top mobile home heating and cooling questions in one handy guide. From how HVAC systems adapt to mobile‑home airflow and the BTU-per-square‑foot sizing you need, to choosing between a central system or ductless mini‑split, this article covers installation, efficiency, and comfort tips for every climate. Learn how to add central AC if you have ductwork, explore DIY mini‑split options, and boost winter warmth without breaking the bank.

When you need dependable heat in your garage or workshop, only the best will do. Our 2025 picks spotlight top-performing heaters across key categories. For overall reliability and value, the Modine Hot Dawg HD30 stands out—its propane-fired 30,000 BTU output delivers quiet, consistent warmth while fitting in tight spaces and backed by a 10-year warranty on vital components. If electric is your preference, the Reznor EGW‑5 offers instant, clean heat in a compact design that installs quickly and features built-in thermostat control.

in this video, you will learn what a heat pump is, how it works, and if it is right for you.

This video will help you understand how a furnace works and how a gas furnace can heat your entire home efficiently.

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.