Attic Fan Keep House Cooler

To ensure that the attic fan is working properly you need to make sure that your attic is sealed up tight where it touches the ceiling of the top floor.

Attic fan keep house cooler.

They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees. However the utility of attic ventilation fans is actually quite a controversial topic. You can set a multi speed fan to a lower speed when noise is a problem. Attic fan ventilation 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.

A whole house fan can be run from early evening to early morning effectively cooling the structure of your home using the cool free outside air. Install electric ventilators and attic fans which remove hot air from an attic. In general a large capacity fan running at low speed makes less noise than a small fan operating at high speed. 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.

After attic fan installation ac still off during day. If the attic fan keeps the house cool enough so that the owners leave the ac off there is almost certainly an energy benefit. And they d still want to have the ceiling air sealed and fully insulated to minimize heat transfer from the attic to the house. Good insulation reduces fan effectiveness.

The result is a cooler attic space with plenty of air exchange. When the day begins and temperatures rise the whole house fan should be turned off. Temp 92 f at 5pm. Attic fans push out the hot air and pull in the cool air from the vents installed on your roof.

The downside of attic ventilation fans. This was observed on numerous days following the installation. As with new homes those without air conditioning shouldn t need to worry about keeping the attic cooler. Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh cool air into the attic.

Temp 84f at 5pm. In that case what they really need is a whole house fan not a powered attic ventilator. 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. Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape.

Adding an attic fan can improve the airflow in your attic to keep it cool. Install an attic fan. Whole house fans can be noisy especially if improperly installed. All whole house fans should be installed with rubber or felt gaskets to dampen noise.

The attic fan kept my house cooler by 8f compared to pre fan installation days. During workdays would leave air conditioner off when leaving in the morning.