Do Attic Fan Covers Work. If the air being forced out by the fan is coming entirely from the outside then yes powered attic fans can be extremely effective. With the attic fan on i tested the outlets and light switches in two rooms below the attic fan and the smoke puffer didn t get pulled. Solar power is safer to use with an attic fan.
Attic fans exhaust hot air from your attic to the outside. How an attic fan works.
The good news is that there is a great way to prevent this wastage of energy all you have to do is use a good attic fan cover.
This will help to avoid premature damage to the shingles or. If the air being forced out by the fan is coming entirely from the outside then yes powered attic fans can be extremely effective. I also tested the ceiling fan and the recessed lights didn t have covers and not sealed and there was a 1 4in gap around the lights and still no pull of smoke. These fans are designed to remove excess heat from your attic which in theory is supposed to lessen the load on the air conditioning in your home.