Do Solar Attic Fans Really Help. If the angle of the sun is lower in the sky morning and late afternoon or the sun s rays are trying to cut through thin clouds or haze the fan spins slower moving less air. 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. The point of having an attic fan is to lessen the load on your ac system saving you money.
However the utility of attic ventilation fans is actually quite a controversial topic. One reason power attic ventilators don t help in my original article i focused on makeup air.
It also provides a lower profile then other ventilation options so that you can streamline the look instead of using bulky items that can cause distractions.
The attic fan just helps the air move more which adds cooler air circulation. Brand name deleted by editor solar attic fans are no. Solar powered attic vent fans usually don t move as many cubic feet of air per minute cfm as hardwired fans. This is basically how air naturally moves.