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Author Topic: water heating with woodstove  (Read 11681 times)

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Offline John Mc

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Re: water heating with woodstove
« Reply #20 on: September 28, 2010, 09:36:28 PM »
isn't extracting as much heat as possible before it escapes the chimney the name of the game in terms of efficiency? 

The name of the game in terms of efficiency starts with burning the fire at the appropriate temperature. Some of the gasses given off when burning wood will not ignite if the temperature is not high enough (unfortunately, I don't remember the ideal temps). If that's the case, the gasses go up your chimney unburnt, or condense on the chimney walls. Failure to burn these gasses gives up a LOT of BTUs that you could otherwise burn.

For a good web site with information on the subject, check out Their site has a lot of good info, as well as links to other sites with good technical background.

If the only tool you have is a hammer, you tend to see every problem as a nail.   - Abraham Maslow

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