Request a Quote!

" is the best! They are such a pleasure to work with! Great brands at the best prices. Special thanks to RenĂŠe who always answered my questions on the spot, and giving thoughtful advice." Serge (Tahiti, French Polynesia)
"The experience I had with my purchase was very good. The items I ordered arrived when I expected & were packaged well. My overall purchasing experience was very positive."

- Thank you,
"I recently found EcoDirect & have been extremely happy with their service. They have had all the PV modules, inverters, optimizers and accessories I needed. They provide excellent customer service & turn orders around very quickly. I have switched to EcoDirect for all my parts & materials orders. Highly recommended."

- Zeno
"I wanted to let you know I am very pleased with the service you gave & the quality & condition of the solar panels I received from EcoDirect. I will purchase more items in the future from EcoDirect and will be sure to tell others about your fine operation."

"Thanks EcoDirect! My solar system is up and running; waiting for City and San Diego Gas & Electric inspections this week; so far so good!"

- J.L.,
Oceanside, CA
"I enjoyed ordering what I needed. It was simple and fast, no issues what so ever. If I need something else and its at a good price, I will defiantly order from here again. Also the shipping is at a good price."

- Simon
My shipment arrived on time, as predicted. Very, very good performance by EcoDirect. What more could you ask for from an online material supplier? Looks like the quantity from Quick Mount is spot on & the rails were bundled safely. EcoDirect will be my recommended source to my friends & neighbors for solar.
- Thank you, Jim Lake
Escondido, CA
"Over the past couple of years, I have purchased several items from Ecodirect and I have always been happy with their customer service and prompt delivery of products."

- Chris
"I am very satisfied, everything was as expected."

- Anon
You are here:Home > Learn > Energy Efficiency Articles > About Solar Attic Fans > How Solar Powered Attic Fans Work


  • Active ventilation
  • Extend roof life
  • Lower AC bill
  • No need for a licensed electrician
  • Shop Solar Attic Fans

How Solar Powered Attic Fans Work

Attic ventilation is a proven method of energy conservation. The summer sun can turn an attic into an oven, and you live just inches away from all of that heat. Attic temperatures reaching as high as 165 degrees Fahrenheit are not unusual, and most commercial, electrically powered attic fans don't even switch on until temperature reaches 125 degrees. While attics may have a vent for passive ventilation or insulation, this is not enough.

An active ventilation system, like a solar powered fan, is much more effective since it actually forces the hot air out of the attic. By keeping the attic cooler, less heat will radiate into the living area of your home. By reducing the load placed on your air conditioner, you lower your electricity bill and extend the life of the AC unit.

Apart from energy conservation, a solar powered attic fan has other benefits. Hot air in a hot attic can hold lots of moisture, and during the evening this will condense (like dew) on wood and other building materials. This moisture contributes to the growth of mold and fungus, and can encourage insect infestation. Keeping the roof cooler and drier will increase the lifetime of your roofing materials. These benefits can be large, potentially adding another 10 years to the life of your roof.

Finally, solar powered attic fans do their job better than conventional, electrically powered fans. They use no extra energy; in fact they use the same solar energy that heats the house to keep the house cooler. Their electric motors are virtually silent and they need no extra wiring or additional circuit breakers for installation.

Since they are not connected to your home's electric power system, a licensed electrician is not needed for installation. There are no hidden costs with installation or during operation.

These fans are available in various sizes and mounting configurations.

Compare the various types of solar attic fans here.