In loving memory of Kenis D. Keathley 6/4/81 - 3/27/22 Loving father, husband, brother, friend and firewood hoarder Rest in peace, Dexterday

Does anyone have this wood stove top heat blower to increase BTU output?

Discussion in 'Modern EPA Stoves and Fireplaces' started by don2222, Mar 25, 2016.

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  1. oldspark

    oldspark

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    I'm with Highbeam on this one, the fan can make a big difference, I used an extra fan on my Drolet last winter and besides moving the air better I could run the stove harder as the fan helped cool the stove. Will be installing a much bigger fan on the stove this summer.
     
    oldspark, Apr 16, 2016
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  2. bobdog2o02

    bobdog2o02

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    Liking highness on this too, and as always, running the fan is optional.....
     
    bobdog2o02, Apr 16, 2016
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  3. DexterDay

    DexterDay Administrator

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    The fan is an exchange mechanism. So you will get more heat... Otherwise it will go up the flue..

    I am willing to bet it's much higher than 10% more by using the blower. I used my woodstove for awhile before adding the blower (decent heat). Then for a year with the blower (better heat), and now 2 years with the custom convection deck I made for the 30-NC (phenomenal). I've used smaller loads ever since and obtain more heat than ever before.

    If you can't extract the heat? It goes up the flue... Which is wasted heat. Pellet stoves are the same exact way (Something I'm more proficient in than woodstoves). The better the heat exchanger in a pellet stove? The better the output. No heat exchanger, or lower Convection CFM? The lower the efficiency. Pretty simple math... Get the heat out.. Many of them are built alike, but some have tube type exchangers, some accordion type, some just a box around a firebox (like a wood stove and they are the least efficient because of lack of surface area). The air and surface area make all the difference.


    Radiant heat is nice... But convection will heat a larger area much faster and more efficiently.
     
    DexterDay, Apr 19, 2016
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  4. mike holton

    mike holton

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    the "extraction" from the blower would raise the delta t between the firebox and the outside of the top, so in theory you should realize more heat in the room with the same wood load. if the blower were controlled by temperature and slowed down commensurate to the lower temps at the end of the fire the efficiency wouldn't fall off as bad.
     
    mike holton, May 13, 2016
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  5. bobdog2o02

    bobdog2o02

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    Always love your input mike. Thanks.
     
    bobdog2o02, May 13, 2016
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  6. mike holton

    mike holton

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    always a pleasure my friend
     
    mike holton, May 13, 2016
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  7. Highbeam

    Highbeam

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    This is a real problem with a super sized blower and a good convection deck. You can strip too much heat when the fire is past its peak. I installed an adjustable snap disk to thermostatically turn the blower off when temperatures of the stove top are below a set point which keeps the burn clean. The blowers actually cycle when the fire is on its way up or down.
     
    Highbeam, Jun 8, 2016
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