Power Roof Fans Are They Worth It

The fan blades spin but they don t lower the attic.

Power roof fans are they worth it.

An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic. Attic fans exhaust hot air from your attic to the outside. But there s really a more fundamental reason that power attic ventilators won t help a lot and for some reason i didn t mention that in the original article. Attic fans are not recommended if you have central air conditioning because when you turn the fan on in the summer it depressurizes the attic but also reaches down into your house and starts drawing off air conditioned air effectively driving up your cooling costs.

The beneficial effects of solar powered attic fans if any are limited to a subset of houses those with airtight ceilings. Powered attic ventilators cause more problems than they solve so if solar powered models have gone up in power that makes them less desirable than ever not more desirable. A gable attic fan uses the the existing gable vent opening to blow out hot attic air. They are either installed on the roof as a roof mounted fan or it is installed vertically on the gable wall of the home.

These attic fans are hardwired into the home s electrical system. However the utility of attic ventilation fans is actually quite a controversial topic. How an attic fan works. Electric powered fans use either household current or solar power to drive a fan blade.

This is a solar panel supplying free electricity to the attic fan under the silver dome on the rear roof. 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. 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. Find out whether it is economical to run an attic fan.

Is a solar attic fan worth the cost. Air vent 1320 cfm weatherwood galvanized steel electric power roof vent. For pricing and availability. Good insulation reduces fan effectiveness.

The downside of attic ventilation fans. Power roof mount fan. Solar powered attic fans use the energy from the sun to power the. Anytime the fan blade turns it draws air through the attic space.

Some electric fans run continuously but.