Attic fans may be wired several different ways.
Do attic fans have different sizes.
This means less energy is used for cooling which translates to reduced energy costs.
For a single story house this is usually the same as the square footage of the house itself plus any attached garage area.
The starting point for any attic ventilation project is always what is the size of the attic space to be vented the international residential building code irc defines attic size in terms of its square footage length x width floor of the attic.
Example 20 wide by 50 long attic.
This unit has to be vented through the wall but its compact size helps it fit.
Hot air is moved through the attic and then expelled.
How much ventilation does an attic need.
Attic fans also help to reduce the heat in the rest of the house.
Attic fans are quite different.
Attic fans come with different models.
A couple different fan styles can be used to help control the temperature of an attic space.
Attic power fans can also be installed on the side walls of attics but the result is the same.
To determine the size of your attic multiply the width by the length of the attic floor in feet.
The effectiveness of an attic fan depends a lot on its type.
Also you place it on the roof top or gable mounted.
Types of attic fans.
The purpose of an attic fan is ventilation and hot air movement strictly in the attic and nowhere else.
This can enhance cooling in the home and can also help with air quality and if you choose a.
20 x 50 1 000 sq.
Attic fans are a great way of cooling the attic.
Typically these devices are used in summer when the temperatures are high exceeding 49 degrees celsius.
Having a fan installed enables you to spend time in the attic without suffering a stifling or stuffy atmosphere.
They re installed up on a roof or through an exterior wall up in an attic.
You can get ones.
Below are 3 common.
A normal sized one might only move 72 000 cfh of air through an attic.