Move air for more efficient heating from your wood stove with the Caframo Ecofan AirMax Heat-Powered Wood Stove Fan. Its thermoelectric module converts heat from your stove into electricity to power a 9 inch wood stove fan that circulates warm air faster and more efficiently. As the surface temperature of your wood stove heats up, the fan will begin to turn. The higher the surface temperature, up to 650AdegF, the fan spins faster and faster. As the contents of your Wood Stove burn down and the surface temp begins to lessen, so does the speed of the fan. It's a simple, cost-effective way to move warm air throughout your entire living area without the need for a noisy blower or plug-in fan. Anodized extruded aluminum with bi-metal strip in base Highest performance Ecofan 175 CFM Creates its own electricity Circulates warm air throughout the room Greater airflow and heat disbursement New high efficiency blade design Designed for use on new EPA stoves No assembly required Silent operation 18% fuel savings and reduced emissions from burning less fuel Increases comfort more quickly Effective on wood stoves Ready to use out of the box No loud blower noise 9 inch fan blade 5.5 inch x 3.3 inch x 10 inchh., 3.8 lbs. Circulate your warmth and order today.