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 AIRMAX is the most powerful model in the Ecofan family, moving up to 175 cubic feet of air per minute (CFM). It is also the largest model at 10 tall x 5.5 wide x 3.3 long and comes with your choice of gold, nickel or black blade colour. The AirMax operates at a stove surface temperature range of 185 F to 650 F (85 C to 345 C). The AirMax has the lowest minimum operating temperature, providing you with the longest operating time of all the Ecofan models.