Q:

What types of large fans are good for keeping an attic cool?

A:

Quick Answer

Whole-house fans, powered attic ventilators and solar-powered attic fans are types of large fans for cooling an attic. Whole-house fans are the most efficient and practical to use. They circulate cool night air and are an alternative to air conditioning. The fans are mounted on the attic floor.

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Full Answer

Powered attic ventilators are usually mounted on a sloped roof of an attic. They are thermostat-controlled and automatically turn on at a certain temperature. The ventilators are built to exchange hot attic air with cool outside air. The intent is to save energy by reducing air conditioner run time. Solar-powered fans are powered attic ventilators mounted with photovoltaic panels. The goal is to reduce electricity use.

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