Purpose Of Attic Fan

The downside of attic ventilation fans.

Purpose of attic fan.

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. It works by drawing hot humid air out of your attic and pushing it outside. The attic fills up with hot air and pushes the air down into the house raising its temperature. An attic fan is what it sounds like it s a fan installed on the ceiling of your attic.

However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic. This provides much needed ventilation and is a powerful addition to your hvac system. Good insulation reduces fan effectiveness. To operate windows in the house are opened and the fan is turned on.

Outside air is then drawn in. Unlike a ventilation fan a whole house fan an attic mounted fan that exhausts air from a home at night is designed to cool a house that is to lower the indoor temperature. The fan is mounted in the floor of the attic sitting above a central hallway in the home. How to use maintain an attic fan.

A powered attic ventilator has a different purpose. An attic fan works as a ventilation unit. However the utility of attic ventilation fans is actually quite a controversial topic. What function does an attic fan serve.

A fan may be installed in an attic for the different purpose of cooling a whole house venting hot air out via the attic. Attic fans exhaust hot air from your attic to the outside. Attic fan ventilation attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside. Attic fans are typically used in warmer months when temperatures in an attic can exceed 120 f 49 c.

An electric attic fan or whole house fan is a valuable alternative to air conditioning if you don t want the expense of running your air conditioning unit all. How an attic fan works. Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool. But in homes without appropriate insulation and ventilation in the attic heat migrates.

An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic. The following should provide you with more information on attic fans and why they are useful in homes. It is designed to lower the temperature of an attic by exhausting air from the attic and replacing attic air.