Do Attic Fans Have Different Sizes

They re installed up on a roof or through an exterior wall up in an attic.

Do attic fans have different sizes. Attic fans also help to reduce the heat in the rest of the house. Attic fans are a great way of cooling the attic. This unit has to be vented through the wall but its compact size helps it fit. Attic fans may be wired several different ways.

You can get ones. Types of attic fans. The effectiveness of an attic fan depends a lot on its type. Attic fans come with different models.

A couple different fan styles can be used to help control the temperature of an attic space. 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. Hot air is moved through the attic and then expelled. The purpose of an attic fan is ventilation and hot air movement strictly in the attic and nowhere else.

How much ventilation does an attic need. Attic fans are quite different. A normal sized one might only move 72 000 cfh of air through an attic. Having a fan installed enables you to spend time in the attic without suffering a stifling or stuffy atmosphere.

For a single story house this is usually the same as the square footage of the house itself plus any attached garage area. Attic power fans can also be installed on the side walls of attics but the result is the same. Some can have manual switches while others use a thermostat to turn them on and off automatically. 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.

20 x 50 1 000 sq. Once a contractor knows the attic square footage the amount of necessary attic ventilation. Example 20 wide by 50 long attic. This means less energy is used for cooling which translates to reduced energy costs.

To determine the size of your attic multiply the width by the length of the attic floor in feet. Typically these devices are used in summer when the temperatures are high exceeding 49 degrees celsius.