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 ORIGINAL is the most economical model in the Ecofan family, moving up to 100 cubic feet of air per minute (CFM). It is also the smallest model at 8.5” tall (9.25” with blade) x 5.5” wide x 3” long and comes with a black blade. The Original operates at a stove surface temperature range of 230°F – 650°F (110°C – 345°C).