I bought a Jotul 602 wood stove at an auction. It is a great little stove with one drawback. It does not have a blower to distribute heat. While browsing through a Lehman’s catalog, I saw the Carframo 812 Airmax Ecofan. The Ecofan is a heat powered free standing fan that is placed on top of a wood or gas stove to circulate air.
This fan does not use batteries and is not plugged into the grid. The fan generates its own electricity using a thermoelectric module which acts as a small generator to power the fan’s motor. The electricity is generated through the temperature difference between the base and the cooling fans on the top so placement of the fan is important.
The base must get hot and there must be a source of cooler air to draw over the cooling fins. My wood stove has a small top and the fan is only 5” away from the stove pipe and a couple of inches from the front of the stove. According to the directions, this is not the ideal situation but the fan runs great.
The Ecofan is not inexpensive. However, I quickly got tired of listening to the Voranado fan noise and turning the fan on and off. The online reviews of the Ecofan are mostly positive. The most common review being that when people opened the box and saw how small the fan was they were disappointed and could not see how it could work as advertised. I had the exact same response but on the wood stove, it went. It took about 2 minutes for the Ecofan to start turning.
While it is not silent it is very quiet and any noise is blocked by background noise. It is rated to move 140 cubic feet of air a minute. The fan speed varies with the heat being put out by your stove. This a great feature as it is self-regulating. If you let your stove cool down the fan will stop and not move cold air around. The fan’s operating range is between 85-345 degrees C. The fan can be damaged by extreme high heat and you must take this into consideration before purchasing.
The 812 Ecofan comes with a 2 year warranty. The electric motor is easy to replace and is not expensive. I am considering ordering a back up electric motor as the cost is minimal and insurance is insurance. Damaging the thermoelectric module with high heat requires sending the fan to Caframo for replacement. The 812 Ecofan is truly an off grid fan. No electricity is needed.
I am very pleased with the 812 Ecofan. The warm air is much better distributed in my house. It is very quiet. It does not require electricity. It is self-regulating so once you set it up you do not have to fiddle with it. If you are looking for a truly off grid fan give the 812 Ecofan consideration. I believe you will be as happy with it as I am.