Attic Fan Efficiency

Gable fans fit into the gable vent and can be set to operate only within a preset temperature range.

Attic fan efficiency. Energy efficiency attic fans can be made energy efficient by making them versatile. You must have a tight seal between your living space and your attic to get an energy efficiency boost. Temp 84f at 5pm. Improving the energy efficiency of your attic helps maintain a comfortable temperature in your home while saving you money on heating and cooling costs.

This way when the sun and wind are down the system works on grid power. Over 90 percent of us homes are improperly insulated. Maybe you don t have any or shallow ideas about the attic fan right. When your attic is at its hottest the fan can run at speeds up to 3 000 cubic feet per minute while only using 140 watts of power which is very low compared to other models.

Attic ventilation will usually need to be increased to exhaust the fan s air outdoors. You ll need 2 to 4 times the normal area of attic vents or about one square foot of net free area for every 750 cubic feet per minute of fan capacity. The attic fan kept my house cooler by 8f compared to pre fan installation days. Despite this it s easy to overlook the benefits of proper attic ventilation radiant barriers and energy efficient insulation.

Attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside. Attic ventilation fans also tend to be quite energy efficient in terms of their own operation. You can save 15 percent of the energy bills you use for air conditioning. Many are solar powered and require no other wiring so they don t cause any additional charges on your electricity bill at all.

This means they should be able to work on solar power wind energy and grid power. Temp 92 f at 5pm. Otherwise the air circulation created in your attic could suck a significant share of your air conditioned air up and out of your house through cracks and gaps in your ceiling. The broan is an excellent option for anyone looking for an easy install high performance attic fan.

This model draws its energy from a built in solar panel and is designed with a low profile. During workdays would leave air conditioner off when leaving in the morning. After attic fan installation ac still off during day. But when any of these are available the system switches to these sources.

However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic.