Sited on the top of the stove, the Ecofan™ generates all its own electricity using thermoelectric technology (see below)and so does NOT require batteries or mains power to operate.
As your stove warms up, the Ecofan™ starts automatically and adjusts its speed with the stove temperature. As the stove heats up the Ecofan™ spins faster to move more air into the room. As the stove cools down the Ecofan™ automatically slows and eventually stops.
The Ecofan™ is also completely silent.