Skip to main content

21OAK may earn a commission when you buy through links on our site.

How to quickly cool down a hot room

The worst part about the summertime is coming home to that one room that is the same temperature as the blistering outdoors. You want to cool it down fast, and you want to make sure it stays that way.

In this article, we’ll discuss what may be causing your room to be hotter than the rest of your house and how you can  resolve the issue.

Recommended Videos

What makes rooms hot

There are several reasons one room of your house may be hotter than the rest. While some of these causes may seem obvious, others might catch you off guard.

Outside temperatures

One of the main reasons your room or house is experiencing unwanted heat is that the temperatures outside have caused the temperatures inside to rise. This is the most apparent cause of hot rooms, and thankfully, there are several simple solutions. 

Too much sunlight

If your room has many windows, it could be a contributing factor to the space getting uncomfortably hot. Windows that draw in a lot of sunlight cause a room to experience a greenhouse effect. While windows are wonderful for natural light, they are also primarily responsible for encouraging the heating of many rooms.

bright kitchen window with sunlight and plants
Olga_Ionina / Shutterstock

Old ductwork

Another reason your room may be experiencing unwanted heat could be old ductwork. Ductwork acts as the ventilation system of your home. It pulls and pushes air, whether hot or cold, from your furnace and AC unit throughout your home. Ductwork should be inspected every five to 10 years to ensure there is no damage and the ducts are clean. If you think your ductwork could be the problem for your overheated space, you should call a professional.

Poor insulation

Another cause of overheating is poor insulation. Insulation holds heat in just as much as it allows heat out. If your windows or walls have poor insulation, you’ll experience similar temperatures inside and outside. If it’s been a while since you last checked on the condition of your insulation, you should contact a professional to inspect for any damages.

Heat rises

Multi-level homes also experience overheated rooms since heat rises. Often, spaces upstairs are on average 5 degrees warmer than areas downstairs.

How to cool down a hot room

Now that you’re aware of the possible causes for hot rooms in your home, you can begin assessing the best method for cooling down the space.

Use a window AC unit

In the summertime, this is one of the best methods for cooling down a space quickly.

Window AC units

come in several different sizes with different capabilities. These AC units are affordable and are a great way to cool a room during the hot temperatures of summer. They’re not as ideal for larger spaces, however. If you have an open concept home that requires a lot of cooling, you may have to consider multiple AC units.

Get a maintenance check on insulation and ductwork

As mentioned above, your ductwork and insulation quality will play a significant role in how hot or cool your house is. Scheduling regular maintenance checks can help prevent excessively warm rooms during the summer. 

person closing the blinds
Dmitriy Kiryushchenkov / Shutterstock

Close the curtains/blinds

Another solution for quickly cooling a hot room is to use curtains and blinds.

Window coverings

act as a second layer of insulation and reduce hot or cold temperatures from getting in. In the summer, curtains capture much of the heat that comes from direct sunlight filtering through your window for an extended time. By blocking the heat with a curtain, your room will remain cooler.

Open windows at night

If temperatures are comfortable in your area at night, you might consider opening windows to let in some of the cool, natural air. The cooler air filtering in from the outside will help cool down your home overnight so the temperatures are more comfortable during the day. Just be sure to close the windows in the early morning before the temperatures rise too much. 

Circulate the air with a ceiling fan

Another tip for cooling a hot room is to circulate the air with a fan.

Ceiling fans

are best at moving the air around your space and recycling the hot air into cooler air. You can also use small, stationary fans to circulate the air if a ceiling fan isn’t the best option for you.

When it comes to cooling your home, the best actions to take are proper maintenance and upkeep to ensure your home is in good standing and prevent excess heat. However, quick and straightforward solutions can add temporary relief until you are able to put in place the proper preventatives.

Editors' Recommendations

Amelia Wilson
Amelia Wilson (author pen name Amelia J. Wilson) is a content writer in Greenwood, IN. She often enjoys topics on…
3 YouTube videos that will teach you how to repair drywall quickly and easily
Learn how to refinish and repair any holes, cracks, and scuffs on your drywall
Person using drywall tape to repair drywall

There comes a time in every homeowner’s life when drywall gets damaged. A doorknob punches a hole because the doorstop went missing or the surface becomes marred when you remove a bathroom mirror during a remodel. Or, perhaps someone inadvertently steps through the ceiling while installing attic insulation.

Accidents happen, and, luckily, drywall repairs are easy. With a few good YouTube videos, even a beginner DIYer can start refinishing walls like a pro, repairing any holes, cracks, and scuffs that come their way.

Read more
The best ways to heat a basement (from super affordable to total reno)
Heating options for your space and budget
Basement with blue walls.

Have you just bought a home with a finished basement? Maybe you put in the work yourself and created some extra living space below ground. Either way, you know that basements can get incredibly cold. Any heat in your home rises, so that could leave your new basement at unbearably chilly temperatures.

To get the most out of this extra space for a home office, kids' rec room, or movie night space, you need to make the conditions livable. So, how do you heat a cold basement? We're going to discuss all the different basement heating options out there, so you can pick the one that's just right for your basement space.

Read more
How to remove old caulk: A 4-step guide to get this tedious job done quickly
This is how to remove old caulk the right way before slapping on the new stuff
Man caulking around window

Sealing certain areas in your home against both moisture and escaping air is a good practice for preventing heat loss and water damage, and caulk is a tried-and-true sealant to use. Whether it was used in the bathroom, on exterior windows, or on your welcoming front door, caulk can not only get grimy and stained after a while, but it can also start to break down and lose its effectiveness. That's why periodic re-caulking is a recommended practice, but you need to get rid of the old gunk before applying the new stuff. Here's a guide on how to remove old caulk.

How do you know when it's time to re-caulk?
When caulk loses its elasticity and waterproofing abilities, it's time for replacement, and knowing when it's time to re-caulk is pretty simple. Signs of deteriorating caulk include visible cracks or gaps, peeling, or a discolored and moldy appearance.

Read more