Does a dehumidifier cool a room?

Does A Dehumidifier Help Cool A Room?

Last Updated: March 15, 2022

Adding a dehumidifier to your home during the hot and humid summers brings great relief by eliminating excess moisture and making the air lighter. 

This specific mechanism often confuses many to think does a dehumidifier cool a room? 

A dehumidifier imparts a cooling effect by drawing out excess moisture from the air, making it dry and comfortable. 

Your experience with a dehumidifier will also depend on your location, weather conditions, and the room size that affects your home environment. 

Besides this, a dehumidifier helps solve several indoor air issues, which we put forth in this informative piece.

Let’s check them out in detail.

Does a dehumidifier cool a room?

No, a dehumidifier does not cool a room. You feel cool while the dehumidifier is running because it absorbs excess moisture from the air and your skin, giving you a cool sensation. 

Think of it this way, after a heavy workout, you feel cool and comfy when you sit under the fan because sweat dries from your body, but this does not mean your fan cools the room.

Similarly, when you run a dehumidifier, it starts absorbing extra moisture from indoor air, making the air dry and cool, and so for some time, you might feel that your room is cool. 

But as the moisture in the atmosphere decreases, you won’t feel that cool sensation, but you will definitely feel relaxed and comfortable.  

A dehumidifier works simply as it sounds by dehumidifying the indoors from excess moisture to restore and maintain a balanced level of humidity. 

Excess humidity of 50% and above makes your home ambiance unhealthy and uncomfortable to breathe and live in, especially in hot and humid summers and monsoons. 

Indoor humidity above 50% not only puts your immunity at risk by causing respiratory infection and allergies but also adversely impacts the indoor aesthetics with damp patches on the walls, ceilings, and furniture.

So installing a dehumidifier is the best way to remove excess moisture from your home environment.

How does a dehumidifier work?

The working mechanism of the dehumidifier is pretty simple.

A dehumidifier uses a compressor fan that absorbs the air filled with moisture. 

This air then goes through refrigerant coils that condense the moisture which gets collected in the water tank of your dehumidifier. 

The dehumidifier pumps back dry air into your room atmosphere, thus reducing humidity.  

How to use a dehumidifier to cool a room in a cost-effective way?

To use a dehumidifier efficiently without denting your pocket and comfort, you need to buy a dehumidifier that is of the best size as per your room area and keep a check on your room moisture level so that you do not end up making your room air too dry as it will start irritating your skin. 

As per EPA, you should keep your indoor humidity levels between 30% to 50% to minimize health risks.

Let’s discuss cost-effective ways of using a dehumidifier in detail.

Size of Your Room 

The size of the room matters a lot when you are considering buying a dehumidifier. 

If your room is small and you buy a large capacity dehumidifier then your dehumidifier will suck away indoor humidity quickly making the air too dry and uncomfortable. 

Similarly, if you buy a small dehumidifier for a large area, then even if you run it for the whole day, you won’t see much difference in the humidity level and it will only increase your electricity bills.

So the first thing you need to consider is if you need a large unit for the whole house or only for selective spaces or rooms of your home.

While for a spacious home, a powerful dehumidifier works best, the same unit for a small room will make the air extremely dry and warm because of the constant running of the compressor.

Size of Dehumidifier

After knowing the perks of using a dehumidifier for home, don’t rush, or you will end up buying the wrong size dehumidifier.

To get the best out of your dehumidifier, you must consider the size of your home or room or space where you will be running the dehumidifier. 

If you want to dehumidify the air of your small room, a small size dehumidifier is ideally the best choice. 

For spacious rooms, a large capacity dehumidifier usually works best.

Here’s a chart from AHAM (Association of Home Appliance Manufacturers) that will help you choose the right dehumidifier as per room size.

Your Space Condition500
sq. ft.
sq. ft.
sq. ft.
sq. ft.
sq. ft.
Your space is moderately damp and has musty smell when the weather is humid10
Your space is very damp and has musty smell and wet patches on walls and floor12
Your space is wet, air also feels wet and there is seepage from walls and floor14
Your space floor and walls are exteremely wet with high load conditions16
Source: Association of Home Appliance Manufacturers (AHAM)

Moisture Level of Your Room

For a healthy home environment, you must ensure that indoors aren’t laden with excess moisture and consider a dehumidifier to relieve your home from excess humidity.

If you live in an extremely humid area, naturally, the moisture level of your room will be high. 

Refer to the above chart and get a slightly larger dehumidifier than your room size. 

This way, it will be easy for your dehumidifier to draw excess droplets from the air without having to work harder to reduce your indoor humidity. 

Run your dehumidifier for a while until you feel comfortable. 

If you think the room humidity is ok, stop the dehumidifier or run it at intervals as needed so that you do not end up running your dehumidifier all day as it will only add to your electricity bill. 

Also, keep your doors and windows closed while running a dehumidifier so that it works effectively. 

Place a dehumidifier at the center of your room as it will help circulate the air and reduce the humidity level in a balanced way. 

How Often You Run Your Dehumidifier

Like any other appliance, running a dehumidifier constantly will impact your monthly electricity bill. 

But that doesn’t mean you should quit using a dehumidifier and start living in an unhealthy ambiance.

If your home humidity is excessively high, you will need to run a dehumidifier for a while and switch it off till you start to feel comfortable. 

Some advanced dehumidifier allows you to set the desired humidity level and will automatically stop running once it reaches the humidity level you set and will start again when the indoor humidity increases beyond a level you have set. 

These advanced features come at a cost, so if you don’t mind spending a couple of bucks extra you can get one or if you prefer to do it manually all by yourself you can buy a simple one with fewer features. 

Is the dehumidifier the same as air conditioning?

While solving your confusion on does a dehumidifier helps cool a room, we know you are already thinking of having a cost-cutting solution with similar effects to an air conditioner.

But a dehumidifier and an air-conditioner are two different appliances with different functionalities. 

While a dehumidifier’s job is to only extract the excess moisture from the indoor air, an air conditioner disperse cold air to lower the room temperature.

Although running a dehumidifier imparts coolness into the ambiance by removing excess moisture from the air and by drying sweat on your skin which gives you a cool sensation it is not the same as air conditioning. 

A dehumidifier does make your indoor atmosphere comfortable but it does not make it cool as the air conditioner does. 

So the ultimate truth is never to mistake these two appliances as the same because their working mechanism is completely different.

Do dehumidifier help air conditioners?

Yes, a dehumidifier helps air conditioners. 

Though dehumidifiers and air conditioning units have totally different mechanisms, they can be run together for the best effect. 

Both these units indeed make the indoor air dry, but running a dehumidifier makes no such visible impact on the room temperature, while an air conditioner cools down your home/room. 

Running a dehumidifier first to reduce the humidity level of your room and then switching on an air conditioning unit does help to greatly reduce the room temperature and positively impact your electricity bill, saving 20% of energy annually.

According to research, a dehumidifier helps an air conditioner to work more efficiently and better by removing excess moisture from the air, hence reducing the effort of an AC doing the same.

Will the dehumidifier make the room smell better?

Home with excess indoor humidity smells musty and makes you feel uncomfortable by making the air heavier. 

But, once you run a dehumidifier, you will start feeling lighter and more comfortable due to the reduction of excess humidity in your home ambiance.

Daily use of a dehumidifier in your home, rooms, or spaces with a higher level of humidity, is quite effective in getting rid of musty odor and dripping walls from bathrooms and basements. 

So, if you are annoyed with the lingering damp smell, install a dehumidifier to get instant relief from musty odor due to excess indoor humidity.

Does a dehumidifier make a room warmer?

While a dehumidifier ensures you enjoy a healthy home environment by removing excess water droplets and making the indoor cool and comfortable, running it for too long can make the room warm.

The warming of your room also depends on what size or capacity of dehumidifier you are using. 

If you are running a large-size dehumidifier for prolonged hours in a small room, it will add some heat to the space because of the constant running of the compressor. 

This warm effect is similar to running other appliances like a refrigerator, with no such noticeable difference in the room temperature.

Final Thoughts

A dehumidifier does not cool your room but does impart a certain level of cooling sensation when it absorbs sweat from your skin. 

To make the room cool you can run a dehumidifier for some time till you feel comfortable and then switch on the AC for faster results. 

Doing this will also help your AC to work efficiently without increasing your monetary electricity bill.  

If you are still wondering whether to buy a dehumidifier or not, check out this article on Signs That Shows You Need A Dehumidifier.

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