Attic Exhaust Fan Purpose

How an attic fan works.

Attic exhaust fan purpose.

A fan may be installed in an attic for the different purpose of cooling a whole house venting hot air out via the attic. 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. Attic fans are typically used in warmer months when temperatures in an attic can exceed 120 f 49 c. They are typically easier to install and won t detract from the appearance of your roof.

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. They can quickly remove a larger volume of hot and or humid air from your attic compared to static ventilation which helps save money on your heating and cooling. Such fans are often called whole house fans. A powered attic ventilator has a different purpose.

Ventilation fans or powered attic ventilators are designed to cool the attic pushing out the hot attic air and rushing in a flow of cool outside air. Master flow egv5 gable mount attic ventilators are master flow egv5 gable mount attic ventilators are a great choice for exhaust ventilation. However the utility of attic ventilation fans is actually quite a controversial topic. 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.

Powered attic ventilators are housed in the. It is designed to lower the temperature of an attic by exhausting air from the attic and replacing attic air. Good insulation reduces fan effectiveness. The downside of attic ventilation fans.