[Greenbuilding] stealing heat from a woodstove for water heating

[Gary Reysa]

Hi,
Maybe you are already aware of this, but there are coils that fit inside
the fire box:
http://www.hilkoil.com/product.htm


You do have to be very careful to have pressure/temperature relief valves
at the right points in the plumbing with these to avoid steam explosions:
http://www.builditsolar.com/Projects/BioFuel/biofuels.htm#FireboxCoils

Seems like this would be a more efficient water heater and reduce the
chance of cooling the flue gases too much?

Gary




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