How Long Should You Run An Attic Fan

There are a few positives to this feature. Part 2 on average you should run the fan for 4 5 hours to ensure the attic is cooled. They can cool your home in less than an hour.

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Setting your hvac fan to on when you set your fan to on you re telling it to keep running 24 hours a day 7 days a week regardless of the heating or cooling setting.

How long should you run an attic fan.

Attic ventilation will usually need to be increased to exhaust the fan s air outdoors. The windows remain closed until the next evening to. Pros to running fan on air conditioner continuously. With electricity rates in central kentucky it will cost the average homeowner less than 3 per month to run the fan 24 hours a day.

They can cool your home in less than an hour. Multiply the number of square feet of the floor area you want to cool by the room height from floor to. The attic is what keeps the home hot. If the switch on temperature is set too low you can bet that the fan will run all summer long and create a noisy disturbance.

Simpler fan models generally have on off switches or dials that allow you to run. The net free area of a vent takes into account the resistance offered by its louvers and insect screens. If you have a newer energy star rated furnace it will have a variable speed motor that is designed to run all the time. You ll need 2 to 4 times the normal area of attic vents or about one square foot of net free area for every 750 cubic feet per minute of fan capacity.

Once the house has cooled the fan can be turned off and the windows closed. You should not operate in the winter to retain heat collected in the attic. Some attic fans are designed with thermostats and turn on automatically when the air reaches a certain temperature. Keep in mind that our systems will provide you with a whole house ventilation fan that can be used to exhaust cooking odor stale indoor air etc.

We always recommend the use of a timer. You should attach a timer on the switch and run for 20 minutes three or more time per day during the warmer months. If your attic fan seems to be running constantly it would be a good idea to bring in a professional to check it out and make sure it s still working properly. Calculate the appropriate size of a whole house fan needed to properly ventilate your home.

If you have a builder s grade or older system then it may cost you as much as 10 12 a month. Weather is also a factor. Generally speaking they can cool down a house in less than an hour. A typical fan can t do both the work of an attic and the whole house fan but a whole house fan does both.