If you own a free-standing wood stove you need an Ecofan! This unique accessory is designed to sit on top of your wood stove and circulate warm air through the room quickly and efficiently. By creating its own electricity from the heat of your stove, Ecofans do not need household energy or batteries. And unlike noisy built-in blowers the economical Ecofan is whisper quiet. THE ECOFAN ULTRAIR is the intermediate model in the Ecofan family, moving up to 125 cubic foot of air per minute (CFM). It is the midsize model at 9 tall x 5.5 wide x 3 long and comes with your choice of gold, nickel or black blade colour. The Ultrair operates at a stove surface temperature range of 212F 650F (100C 345C).