How Long Should You Run An Attic Fan

Whole house fans work on the principle of removing the hot and humid air out of the house.

How long should you run an attic fan.

A whole house fan can provide an energy saving alternative to air conditioning particularly when the air outside becomes cooler at night. When exploring the best attic ventilation practices consider installing an attic ventilation fan to keep the hot air from settling in. 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. The net free area of a vent takes into account the resistance offered by its louvers and insect screens.

Many homeowners are under the assumption that ventilation is only important in the summer but this couldn t be farther from the truth. Why should you maintain your attic fan. Instructions for running a whole house fan. Even if your ductwork is insulated it only does so much good against those kinds of temperatures.

Operation operating an attic fan is simple. Simpler fan models generally have on off switches or dials that allow you to run the fan for a specified amount of time such as 15 minutes. While yes ventilation is important when the temperatures are high it is just as important if not more. Ventilation in your attic is one of the most important things that you can do for your home and an attic fan is the best way to ventilate the space.

When is running my furnace fan all the time not a good idea. Taking a look at the belt and blades of each fan and checking whether there is dry rot will help you find out if the fan is in a good working condition. The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows. If you can improve ventilation in your attic and reduce the amount of heat the space holds and pushes into your home you ll reduce the cooling load on your air conditioner and save money on your utility bills.

It helps to cool your home temperatures and the attic by approximately 30 degrees. When you have a fan you ll need to inspect it from time to time to ensure that it s working and in good condition. There are a couple of reasons why you may not want to run your fan. You may feel a less even distribution of heating and cooling because once the thermostat is satisfied the fan stops moving air to other spaces in the home.

Cons to setting fan on auto. If it is the dead of summer and you have ductwork in your attic temperatures can reach as high as 140 degrees. Attic ventilation will usually need to be increased to exhaust the fan s air outdoors. 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.