Instructions for running a whole house fan.
How long should you run an attic fan.
If it is the dead of summer and you have ductwork in your attic temperatures can reach as high as 140 degrees.
Why should you maintain your attic fan.
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.
The fan s auto setting works with your heating cooling system so your fan is running the least amount of time needed at the slowest speed.
Whole house fans work on the principle of removing the hot and humid air out of the house.
A whole house fan can provide an energy saving alternative to air conditioning particularly when the air outside becomes cooler at night.
Operation operating an attic fan is simple.
While yes ventilation is important when the temperatures are high it is just as important if not more.
Attic ventilation will usually need to be increased to exhaust the fan s air outdoors.
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 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.
Cons to setting fan on auto.
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.
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.
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 net free area of a vent takes into account the resistance offered by its louvers and insect screens.
When is running my furnace fan all the time not a good idea.
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.
Even if your ductwork is insulated it only does so much good against those kinds of temperatures.
Many homeowners are under the assumption that ventilation is only important in the summer but this couldn t be farther from the truth.
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.
