Is it okay to put an air conditioner in the bathroom?

Author: Martin Powlowski  |  Last update: Tuesday, April 15, 2025

As you may already know, simply opening a window isn't always the best way to cool down a steamy bathroom. You can put air conditioning in a bathroom, and it's worth exploring the benefits of choosing to do so during your upcoming home remodeling project.

Can you put air conditioning in a bathroom?

you are really limiting the usefulness of the AC by putting it in the bathroom. if you get a properly sized AC for the square footage of your bedroom and bathroom combined, the bathroom will get very cold before there is an appreciable temperature difference in the bedroom.

Where not to install an AC?

Your air conditioner should never be in direct sunlight. The higher heat from the sun causes the AC to work harder to produce the cooling effect needed.

Can you put a window unit in a bathroom?

Perfectly possible! A lot of people opt for an air conditioning system in the living room and bedroom, but did you know that an air conditioner can also add value in the bathroom? We give you a few reasons to consider an air conditioner in the bathroom.

Can you put an air conditioner in a room without a window?

The Bottom Line. You can enjoy the cool air in your room, even if there is no window. You just need to find a suitable type of AC that works in windowless spaces like ductless mini-split ACs, evaporative coolers, and through-the-wall ACs.

DIY Mini Split Install: 3 Regrets After 1 Year of Use

What happens if you use an AC without a window?

For example, the unit may not be able to cool the room effectively, leaving you feeling hot and uncomfortable. Additionally, inadequate ventilation can cause the air conditioner to overheat, which can damage the unit and shorten its lifespan.

Why do air conditioners have to be in a window?

Its primary purpose is to draw in air from the room, cool it and recirculate that air into your home. The reason the unit sits in the window is for easy access to the air outside, which it uses to expel the heat and humidity (in the form of condensation).

What is code for a bathroom window?

Under section 1203.4. 2.1, California's building code requires that any bathroom that contains a bathtub, shower, spa or similar, will require ventilation by an exhaust fan. In a similar vein, under section 1203, any property designed for occupation must be naturally ventilated by windows, doors and other openings.

Where is the best place to put a window air conditioner?

A window AC that is shaded can run at 30% less electricity to cool down a space, compared to a unit that is placed in direct sunlight. Place your unit where the air flow can move about freely. In other words, don't install your unit behind a piece of furniture or place anything directly in front of it.

Should bathrooms have AC vents?

A bathroom ventilation system is important, no matter your bathroom size. It's a myth that larger bathrooms don't need a ventilation system.

What are the areas to be avoided when installing an air conditioning unit?

Indoor units: Install in central, open areas to distribute cool air evenly. Avoid placing near heat sources or obstructions like furniture. Outdoor units: Choose shaded and well-ventilated spots to improve performance and reduce strain on the system. Avoid installing near bushes or walls that can block airflow.

Where is the best place to put an AC unit in a room?

In a 10 feet high room, a split type AC should be installed at 7 -8 feet for the best cooling performance. For a window type AC, the best height is 3-4 feet from the floor. If you are fixing the AC very close to the wall or in an airtight room it will trip due to high head pressure, as heat dissipation can't happen.

What are the bad side of air conditioners?

Dry eyes, lethargy, dehydration, dry or itchy skin, headaches, respiratory issues, allergies and asthma, noise pollution, infectious diseases, and indoor pollutants are among the common health concerns associated with prolonged exposure to air conditioning.

Does AC drain into bathroom sink?

In newer homes, HVAC condensate drains are tied most often to bathroom drains.

What is the AC in the bathroom for?

Air conditioning vents aid in the removal of warm air as well as moisture from the bathroom. These AC vents, which normally transport air out via the roof, may or may not be connected to other portions of the house's ductwork. They perform a crucial function in keeping bathrooms safe and clean.

How can I make my bathroom cooler?

Firstly, ensure that the bathroom has a window that opens to the outside air, allowing fresh air to circulate in the room. Alternatively, an extractor fan can also do the trick – switch it on before taking a shower or bath, and leave it running for at least 15 minutes after finishing.

Can I put a window AC in the bathroom?

You can put air conditioning in a bathroom, and it's worth exploring the benefits of choosing to do so during your upcoming home remodeling project.

Where is the best place to install AC?

If possible, it is best practice to install your air conditioner on the north or east side of your home. This will ensure that the unit stays out of sunlight during the hottest parts of the day. Keeping your unit in the shade is essential for energy and cooling efficiency.

Where should you not install an AC unit outside?

Keep it away from trees and dirty areas

Although shading is necessary, placing it near trees or driveway can attract leaves and dirt inside the unit. Water is a big no no as well so if there is an area where rain tends to pool, mount the unit in a elevated position.

What window is best for bathroom?

Slider windows make a smart choice for bathroom windows. You can open them just enough for ventilation. Slider windows come with two or more sash. The sash also expand the area for natural light to enter the bathroom.

Is it against code to not have a vent in a bathroom?

Surprisingly, some building codes do not require bathroom fans. All municipalities have different requirements, but some do not draw a hard line on requiring exhaust fans. Bathroom ventilation is needed in those areas, but it can be from a window or fan—you choose.

What is the code for the bathroom life is strange?

To find the correct code, look in the mirror. Remember it's backwards though since it's a reflection! Just in case, the code is 0311.

Can you put a window AC unit in a room with no windows?

Can an AC work without a window? Yes, it depends on the air conditioner model. You can go for a ductless addition to your existing system or a portable cooler designed for windowless spaces.

Which is better portable AC or window AC?

The most obvious difference between a portable and a window air conditioner is that a window unit is a single box that sits in your window while a portable unit has a box that sits on the floor with an exhaust vent that connects through a window, ceiling, wall or door.

How to cool a room without AC?

Effective Techniques for Cooling Rooms Without Air Conditioning
  1. 1.1 Optimize Your Window Curtains.
  2. 1.2 Utilize Heat-Reflecting Window Films.
  3. 1.3 Seal and Isolate Specific Areas.
  4. 1.4 Minimize Indoor Cooking Heat.
  5. 1.5 Upgrade to Energy-Efficient Lighting.
  6. 1.6 Position Fans for Optimal Airflow.
  7. 1.7 Control Indoor Humidity Levels.

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