Our solar attic fans do not store power in a battery. They will only run in direct sunlight. We do have an optional thermal switch available which turns the fan on at 80 degrees and turns the fan off once it gets down to 70 degrees. If you have any further questions don't hesitate to give our customer service a call at 800-363-9865. Thank you for your interest in our products and we hope to hear from you soon.
No. This unit is will only run in sunlight. At night it acts as a passive vent for letting heat out.
Thank you for your recent inquiry with the Home Depot. Unfortunately, Home Depot does not install Attic Fans. However, we do partner with Pro Referral for our installation services. Please click this link or copy the link into your browser https://www.proreferral.com/ . We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot.