Thank you for the welcome Diane. I am very happy to be a part of this group. I have seen those fans that you mention, but unfortunately our wood stove is 30' from the entrance to the GH and it takes a little more horsepower to move the air. Next winter the GH will have its own woodstove so electric fans won't be necessary. Tommie On Feb 9, 2010, Diane Whitehead <voltaire@islandnet.com> wrote: Welcome, Tommie. I have a fan that sits on top of my woodstove. The heat of the stove spins it around to distribute warmth. Diane On 9-Feb-10, TOMMIE GILLAM wrote the main purpose of the generator is to > provide electricty to the fans that circulate warm air into the > attached passive-solar greenhouse, I have my priorities;) Stay warm > everyone! >