Attic Fans Really Work

I m not experienced enough with your climate to know whether a whole house fan would work but i suspect that it would work better than attic insulation.

Attic fans really work.

Why attic fans don t work well and what to do instead. 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. Turn your fan off and monitor the temperature in your attic up unitl 2pm or something then. If you really can t believe it set up some experiments of your own.

You re pitting your intuition against physics and data. Some of the daytime temperature rise comes from internal loads refrigerator television lights and some from solar gain through windows and attic insulation won t reduce those heat sources. With the summer season upon us now is a good time to review an uncomfortable topic. The downside of attic ventilation fans.

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. Whether or not an attic fan really works is a controversial subject. Good insulation reduces fan effectiveness. A very hot problem last week we had some warm weather for the first t.

You have to apply insulation during some season for it to be effective. To determine the number of cubic feet per minute needed for a power vent fan multiply the number of square feet in your attic by 0 7. But they re much easier to install since no wiring is needed. Find out whether it is economical to run an attic fan.

Hot attics and why traditional exhaust fans don t work well enough to cool them off. Instead of installing a fan just make sure your attic is well ventilated. The attic fan can work with the modern air conditioning unit but only if you are in a closed room. During the different seasons the attic fan will help you in dealing with moisture and heat.

They also create zones of negative pressure that could pull the ac cooled air into the attic. However the utility of attic ventilation fans is actually quite a controversial topic. The safety and effectiveness of an attic fan is a subject that is hotly debated but line powered products usually cost more to operate than they can produce in savings during the summer. I know it seems intuitively that these things would work great but they just don t.

Solar powered attic vent fans usually don t move as many cubic feet of air per minute cfm as hardwired fans. People who really think attic fans work. Energy professionals will tell you that they do more harm than good. By tipsformyhome june 28 2019.

Solar power is safer to use with an attic fan. Watch this video to find out more. Here is some information so you can decide whether an attic fan is. Do attic fans really work.