Attic Fan Energy Savings

Use energy efficient attic fans to regulate your home climate.

Attic fan energy savings. This is a solar panel supplying free electricity to the attic fan under the silver dome on the rear roof. The fan blades spin but they don t lower the attic temperature at all. Attic fans can create a negative pressure condition in your home causing vented appliances to backdraft. This backdraft can bring dangerous and toxic fumes into your home like carbon monoxide an odorless and deadly gas.

When a c typically costs 140 336 per month that s a savings of. You can set a multi speed fan to a lower speed when noise is a problem. The point of having an attic fan is to lessen the load on your ac system saving you money. You don t want your unfinished attic cooled by your air conditioner.

When turned on the fan draws cool air through the windows up and into the attic helping to push warm air out of the attic. 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. 70 168 at 50 savings 126 302 at 90 savings. Attic fans are a good option for regulating your.

Energy credits whole house fans use a significantly lower amount of energy to operate than air conditioners or central heat and air units. Whole house fans differ from dedicated attic fans because whole house fans create airflow throughout the house while attic fans only serve to ventilate the attic space. And i agree with the additional energy costs but my attic fan is a 1500 cfm 40 watts. Using your duct system as a whole house fan.

This type of system blows hot air out of the attic but it can have a negative effect. 5 ways to make your attic more energy efficient 1. You may be able to use the heating and air conditioning ducts in your home as a means of whole house ventilation. To prevent this follow the air sealing and insulation strategies in this guide and make sure the attic is well ventilated using.

And this is a gable fan. Venting an attic allows outdoor air. I understand a blower door test would show the air leaks and i ve seen this 2x but i m trying to understand with an attic fan on in an unsealed attic the attic fan should pull the air in the home up into the attic. Danny s tests of solar attic fans showed that in florida where there s abundant solar energy yearly savings from installing two fans in a house with just over 1 000 square feet of air conditioned floor area amounted to only 460 kwh.

Install energy efficient ventilation to improve air circulation in your attic. Depending on what your utility charges that s about 40 per year.