How to Vent Heat from Dehumidifier

Do you find that your home is particularly humid? Do you need to reduce the moisture in your living spaces without compromising on air quality? To manage humidity effectively, an effective solution is to use a dehumidifier. A dehumidifier works by extracting water vapor out of the atmosphere and recirculating refreshed, clean air back into space – all while offering tons of energy savings.

How to Vent Heat from Dehumidifier

Unfortunately, however, standard dehumidifiers expel heat during their operation which may then start to accumulate within a room or building. In this blog post, we will discuss how to vent heat from dehumidifier and what proper ventilation protocols can help ensure that any residual heat produced from running a dehumidifier is dispersed safely and efficiently.

Should I Vent My Dehumidifier?

Venting a dehumidifier can be beneficial in helping it run more efficiently and reducing the amount of moisture that accumulates in the environment. However, it’s important to consider the installation process, as well as any potential safety risks, before venting a dehumidifier.

When determining if you should vent your dehumidifier, there are a few important things to consider:

  1. The size and capacity of the dehumidifier you are using. If you have a larger unit, or one with higher humidity removal rates, it may be beneficial to consider venting.
  2. The climate of your area. In warmer climates where humidity levels tend to remain high for extended periods of time, venting can help reduce moisture in the environment and improve overall air quality.
  3. The location of your dehumidifier. If your dehumidifier is located in an enclosed space such as a basement or attic, venting can help ensure that moisture doesn’t build up within the confined area and lead to further problems such as mold growth.
  4. The potential safety risks associated with venting. Since the exhaust fan of your dehumidifier will be connected to an external vent, it is important to make sure that the area around the vent is safe and clear of obstructions or debris. Additionally, if you are using gas-powered dehumidifiers, it is important to ensure that any necessary flues or vents have been properly installed in order to prevent carbon monoxide build-up within your home.

9 Methods How to Vent Heat from Dehumidifier

1.  Use a Dehumidifier with an Auto Shut-Off Feature

One of the best ways to vent heat from a dehumidifier is to use one that has an auto shut-off feature. This feature will cause the dehumidifier to turn off automatically when the desired humidity level is reached, which will help to prevent the unit from overheating.

Additionally, the auto shut-off feature can help conserve energy and minimize noise levels. If possible, look for a dehumidifier with an adjustable humidity range so that you can easily adjust the settings to meet your needs.

2.  Place the Dehumidifier in a Well-Vented Area

Another way to vent heat from a dehumidifier is to place it in a well-vented area. This will allow the unit to draw in cooler air from outside, which will help to prevent it from overheating. It’s important to make sure that the area is large enough for a dehumidifier and not too small, as it can cause the unit to overheat.

If possible, keep the dehumidifier away from direct sunlight, as this can further increase the temperature inside the unit. When positioning the dehumidifier, make sure to leave enough space around it to allow for air circulation. Additionally, avoid placing the unit near a heat source, such as a stove or radiator. This will help to ensure that the dehumidifier is not exposed to too much heat.

Keep Dehumidifier Away
 From Direct Sunlight

3.  Use a Dehumidifier with a Fan

Using a dehumidifier with a fan will also help to vent heat from the unit. The fan will circulate air around the room, which will help to keep the unit cool and prevent it from overheating. It also helps to reduce humidity levels in the room, making it more comfortable for you and your family. 

Be sure to keep the dehumidifier away from windows, as the sun will cause it to overheat quickly. Keep it in an area that has good air circulation so that the fan can move the hot air away from the dehumidifier. You should also make sure to clean the filter regularly to ensure that it is working properly and not clogging up with dust and dirt.

4.  Empty the Dehumidifier’s Water Reservoir Regularly

Emptying the dehumidifier’s water reservoir on a regular basis will also help to vent heat from the unit. When the reservoir is full, it can cause the unit to overheat as the water prevents air from circulating properly.

To ensure that your dehumidifier works efficiently, it’s best to empty the reservoir once or twice a day during hot and humid conditions. Additionally, in order to prevent the buildup of mold and mildew, you should ensure that your dehumidifier’s filter is clean and free from dust and debris.

Cleaning the filter can help to reduce any issues with overheating, as well as improve air quality in your home.  Additionally, you should also make sure that the dehumidifier is placed in a room with adequate air circulation.

5.  Clean the Dehumidifier Regularly

Keeping the dehumidifier clean will also help to prevent it from overheating. Dust and dirt can build up on the coils and other parts of the unit, which can block airflow and cause the unit to overheat. To keep your dehumidifier working properly, it’s important to clean it regularly.

Start by unplugging the unit and then removing the filter. Use a vacuum cleaner to remove any dirt and debris from the exterior of the unit, being sure not to damage any parts. Next, use a soft cloth to remove any dust from the coils and other parts. Finally, wipe down the humidity control knob with a damp cloth.

Use a Vacuum Cleaner 
to Remove Any Dirt

6.  Don’t Use the Dehumidifier for Extended Periods of Time

If possible, try not to use the dehumidifier for extended periods of time. Running the unit for long periods of time can cause it to overheat and may damage the unit. Allow the dehumidifier to rest every now and then. This will allow it to cool off and be well-ventilated before use again.

If you are using a larger model, it is recommended that you have an air conditioning unit installed in the room which can help draw away some of the heat from the dehumidifier. Additionally, if you have the opportunity, try placing the dehumidifier further away from where you are in order to avoid extreme heat build-up.

7.  Turn Off the Dehumidifier When Not in Use

When you are not using the dehumidifier, be sure to turn it off. Allowing the unit to run when it is not needed can waste energy and may cause the unit to overheat. When storing the dehumidifier, make sure it is in a cool and dry place.

When Storing the Dehumidifier

Ensure that all of the vents are fully open and unobstructed so that air can flow freely when the unit is running. Lastly, do not store any combustible materials near the unit, as this could lead to a fire hazard.  With proper care and maintenance, your dehumidifier will continue to work efficiently and effectively for years to come.

8.  Keep Doors, and Windows Closed When Using the Dehumidifier

Keeping doors and windows closed when using the dehumidifier will help to prevent warm air from entering the room and causing the unit to overheat. It is important to ensure that the room is sealed off as much as possible in order for the dehumidifier to work effectively and efficiently.

Additionally, this will also help reduce energy consumption which can help save on electricity bills. Although it may be tempting to open windows and doors to let the warm air out, this can cause the dehumidifier to struggle and will not help with venting heat from the unit.

9.  Don’t Place Objects Near The Dehumidifier’s Air Intake

Placing objects near The dehumidifier’s air intake or exhaust vents can block airflow and cause The unit to overheat. Make sure that there are at least 3 feet of clearance around The vents so that The air can flow freely through The unit.

Additionally, The unit should be placed away from direct sunlight and other sources of heat. This will ensure that it is not exposed to any additional heat and the vents are able to vent out the heat more effectively.

By following these simple steps you can make sure that your dehumidifier runs optimally all year round. Remember, ventilation is key to keeping The unit running efficiently and without overheating. If you have any questions or concerns about your dehumidifier, don’t hesitate to contact the manufacturer for advice.

Placing Objects Near  
Dehumidifier’s Air Intake


Although a dehumidifier is an appliance that many people use in order to improve the air quality in their home, it is important to know how to properly vent heat from the device. 

If you do not vent heat from your dehumidifier, it can cause the appliance to overheat and break down. By following the simple steps on how to vent heat from dehumidifier outlined in this blog post, you can ensure that your dehumidifier will last for years to come.

Angela Ervin

Angela Ervin

Angela is the executive editor of DIY quickly. She began her career as an interior designer before applying her strategic and creative passion to lifestyle and home. She has close to 15 years of experience in creative writing and online content strategy for housekeeping, home decorations as well as other niche efforts. She loves her job and has the privilege of working with an extraordinary team. She lives with her husband, two sons, and daughter in Petersburg. When she's not busy working she spent time with her family.

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