dawnbledsoe
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Hello I'm new to the PF? My main reason for posting was to understand how I may begin to create a heat powered fan for my wood stove? Would someone be willing to help please?
Heat Powered Fan: Get Expert Advice Here
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Dr Lots-o'watts
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What and why do you want to vent exactly? Is it to be heated by the stove itself? Just want to make sure I get this.
turbo
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If you intend to copy an Ecofan, don't bother. We have one that was given to us, and it is pretty useless for moving air. It's main value is as a visible indicator that the stove's surface temperature is falling. Other than that, it's a conversation piece at best.
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Are the "heat driven fans" in question driven by stirling engines?
Dr Lots-o'watts
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turbo-1 said:
I just checked these out, and they can apparently provide around 100 CFM. If so, then having a half-dozen of these on the stove should be more than enough to make a noticeable difference.
turbo
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Buy one and test the 100 cfm claim. You won't buy more.Dr Lots-o'watts said:
Dr Lots-o'watts
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turbo-1 said:
Thanks for the review!
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You can buy little steam engines...
Dr Lots-o'watts
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russ_watters said:
It would be interesting to compare with peltier devices.
dawnbledsoe
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Well thank you for all the replies. My wood stove is in the living room and straight in front of the hallway I was looking to circulate the warm air down that hallway. But I want to take on a home project instead of buying one.
Bob Engineer
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dawnbledsoe said:
i also face this problem...
until now i not know how to get heat my wood stove easily.
Danger
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I like Russ' idea. You could build a small steam engine on or beside the stove, with a coil of tubing or a tank inside the stove as a boiler. (With the bonus that the exhaust would be a small-scale humidifier. 
) It might be too noisy, though.
My own first thought was to put a turbine (just a simple pinwheel type) in the chimney with a driveshaft going to the fan, but I can't see that producing a lot of breeze.
) It might be too noisy, though.My own first thought was to put a turbine (just a simple pinwheel type) in the chimney with a driveshaft going to the fan, but I can't see that producing a lot of breeze.