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HVAC Closet Door Ideas And Sizes

HVAC systems are machines that help regulate the temperature indoors. You must know the sizes and closet door ideas when installing an HVAC. What are some HVAC closet door ideas and their sizes? 

HVAC closet door ideas include installing a foam-insulated garage door seal and a door sweep. The most typical sizes are 14, 16, and 18 inches. A 16-inch door will have an R-value (how well the door insulates heat), while a 14-inch door has an R-value of .9 and an 18-inch door has an R-value of 1.

If you are looking for some great ideas for your HVAC closet door, you have come to the right place! We will discuss some of the best HVAC closet door ideas and sizes to help you make the most of your space. We will give you tips on choosing the right size door for your HVAC closet. So, if you are ready to learn more, let’s get started!

HVAC Closet Door Ideas

Closet doors are not designed to be airtight. They often sag when weight is placed upon them, and they don’t always close completely, especially if there is little clearance between the door and the frame. This can result in heated or cooled air escaping from the room, reducing the efficiency of your HVAC system. 

This issue can be solved by lodging a foam-insulated garage door seal. A seal like this will take only minutes to install, yet it will prevent heated or cooled air from escaping. 

These seals are designed to fit snugly around the door frame and come in various thicknesses so that you can choose one that is right for your HVAC unit. The foam insulation will not interfere with the operation of your closet door, and it will not lose its shape over time.

Another solution would be to install a door sweep. This option will require more work but will also provide added benefits. 

A door sweep is designed to fit around the bottom portion of your closet door, creating a seal that will keep air from leaking out. You can install a door sweep or have a professional do it.

A door sweep will help reduce outside noise, and it will provide some extra insulation. A door sweep made of durable material such as aluminum or stainless steel will also strengthen your closet door, so it will remain closed without sagging. 

Many other solutions are available to help you close your closet door. You can purchase a door stop designed to fit around the doorknob or install a door stopper with a long screw that will reach through the frame and into the wall behind it. A cordless drill is required for this option.

You can also find HVAC insulation kits at many hardware stores, but they are not as effective as foam-insulated garage door seals and door sweeps. Installing one of these kits requires you to cut out a section of the closet door and then fit the insulation into it. This may not be worth the time and effort that you put into it.

Whether you install a foam-insulated garage door seal, a door sweep, or both, you will reduce your energy bills and enhance the efficiency of your HVAC system. You’ll also find that these solutions are easy to install and won’t interfere with the regular use of the closet door.

HVAC Closet Door Sizes

First, let us discuss the various sizes and types of doors available for your HVAC closet. There are two main categories: sliding and swinging doors. Sliding doors are typically used in small spaces, whereas swinging doors can be installed in larger areas. 

The size of your HVAC closet will determine which type of door you choose. A sliding door is best if you have a small closet because it takes up less space than a swinging door. Then again,  a swinging door is a way to go when you have a larger area because it has more room and allows for more airflow.

If you’re in the process of choosing doors for your HVAC closet, you might be wondering what size doors you need. We’ll review the standard door sizes for HVAC closets and some things to keep in mind when selecting.

Door Sizes

The most important thing to remember when choosing your door size is how large your equipment will be. For example, if you have a condenser outside the closet, you’ll want a large door. 

Alternatively, if you have two or more units inside the closet, you’ll also want to ensure enough room for them to fit side by side without any issues.

Most Common Sizes: 14, 16, and 18 Inches

The most common sizes you’ll find when searching for HVAC closet doors are 14, 16, and 18 inches wide. These are the standard sizes that manufacturers produce, but some units may also come in other sizes. If you’re looking for a door in one of these three sizes, it should be fairly easy to find it online or in stores around your area.

R-Value: A Small Difference

Another thing you may find when searching for your door is the R-value. This number represents how well the door insulates heat, typically a slight difference between 14-, 16- and 18-inch doors. A 16-inch door will have an R-value of .8, a 14-inch door has an R-value of .9, and an 18-inch door has an R-value of 1. 

The extra two inches that make up the 18-inch door will give you more insulation, but it’s not enough to make a huge difference. If you’re looking for better insulation than your current HVAC closet door, you might consider getting a different size altogether.

Cost: Considerations When Buying New

When buying new doors for your HVAC closet, there are some things that you may want to consider as well. For example, if you buy larger equipment than you currently have, ensure that your doors are strong enough to hold. 

You may also want to consider color options and whether they match the rest of your closet’s equipment. This can save you plenty of money and time in the long run. 

When choosing your new door size, remember that it’s better to have too large of a door than too small. This will help you avoid any difficulties with installation or equipment sizes.

What Not To Do With Your Heating System

Like some people, you likely don’t give your heating system much thought. But there are some things you should avoid doing if you want to keep it running smoothly. Here are four things not to do with your heating system.

1. Don’t Let The Temperature Get Too Hot Or Too Cold

It’s easy to neglect your heating system when it’s not being used, but letting the temperature in your home get too hot or cold can damage your system’s internal components over time. For example, if the temperature in your bedroom gets too hot and the fan in your AC unit stops working because it’s too hot for the motor to work, you could end up with a burnt-out fan. 

Not only will this cost you money over time because you’ll have to replace your fan more often than you would have had it worked properly, but it can also lead to more significant problems with your system.

2. Don’t Let The Humidity Get Too High

High humidity levels can produce mold and mildew in your home, which you want to avoid. But high humidity levels can also cause condensation in your AC unit and clog up the components of your system that pull air from outside. This can lead to various problems with your AC, such as low airflow and frequent breaks when the system overheats.

3. Don’t Let Your Filters Get Too Dirty 

If you’re not careful, the filter on your heating system can become clogged with dirt, dust, and pet hair over time. When this happens, the segments of your system that pull in fresh air from outside won’t be able to do their task because they aren’t getting enough fresh air. 

This can lead to low airflow and overheating in your AC unit, which will cause it to break down more frequently than it would if the filter were clean.

4. Don’t Run Your System Too Often Or For Too Long

Running your heating system too much can wear it out over time. For example, if you own an older furnace that runs all day long during the winter months and doesn’t have a lot of built-in smarts, it will wear out more quickly than a newer, more efficient furnace. 

Also, running your AC unit too often can cause it to overheat and break down more frequently than if you were careful when turning it on.

5. Do Not DIY 

We recommend getting professional maintenance for your HVAC system every year – especially if you live in a hot climate (like Texas) where it gets hot during the summer. 

Most technicians will recommend that you replace your filters at least once every three months, and they’ll probably suggest that you get a professional inspection of your system (and maybe some repairs) once or twice a year. You can save money by carrying out the work yourself, but it’s usually worth paying for the expertise of a trained technician who knows what he’s doing.


Hopefully, this article assisted you with the perfect HVAC closet ideas and the best sizes, i.e., 14, 16, and 18 inches. Some HVAC closet ideas are installing a foam-insulated garage door seal to prevent heated or cooled air from escaping, installing a door sweep, and purchasing a door stop designed to fit around the doorknob. You can get a door stopper with a long screw reaching through the frame and into the wall behind it.