Do Attic Fans Have Different Sizes

A couple different fan styles can be used to help control the temperature of an attic space.

Do attic fans have different sizes.

This can enhance cooling in the home and can also help with air quality and if you choose a. Attic fans may be wired several different ways. How much ventilation does an attic need. The effectiveness of an attic fan depends a lot on its type.

Example 20 wide by 50 long attic. A normal sized one might only move 72 000 cfh of air through an attic. Usually the fan is hardwired directly into an electric circuit and is controlled by a thermostat most commonly ranging from 60 f 16 c to 120 f 49 c it may also be hardwired but controlled by a switch another popular method is to have the fan plugged into an electric socket mounted nearby. The purpose of an attic fan is ventilation and hot air movement strictly in the attic and nowhere else.

Attic fans also help to reduce the heat in the rest of the house. Typically these devices are used in summer when the temperatures are high exceeding 49 degrees celsius. Below are 3 common. To determine the size of your attic multiply the width by the length of the attic floor in feet.

For a single story house this is usually the same as the square footage of the house itself plus any attached garage area. Hot air is moved through the attic and then expelled. Types of attic fans. Attic fans are a great way of cooling the attic.

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. Having a fan installed enables you to spend time in the attic without suffering a stifling or stuffy atmosphere. Attic fans come with different models. Also you place it on the roof top or gable mounted.

Some can have manual switches while others use a thermostat to turn them on and off automatically. Attic power fans can also be installed on the side walls of attics but the result is the same. They re installed up on a roof or through an exterior wall up in an attic. This unit has to be vented through the wall but its compact size helps it fit.

Attic fans are quite different. Once a contractor knows the attic square footage the amount of necessary attic ventilation.