[Greenbuilding] firewood moisture content
nick pine
nick at early.com
Tue Dec 20 06:47:36 CST 2011
Here's a condensing wood pellet boiler
http://www.grantengineering.ie/product-area/grant-wood-pellet-boiler/ with
97.4% efficiency.
Steve Grant says they would like to sell these in the US, after some testing
and voltage changing...
John Gulland's website: http://woodheat.org/ says:
>Wood-fired stoves and fireplaces operate on natural draft, meaning that no
>fans assist the flow of exhaust. For the chimney to function correctly, it
>needs to receive about twenty percent of the heat energy produced by the
>burning wood. Past experience has shown that when wood stove efficiency is
>much over 80 per cent, water vapor condensation can begin to occur in
>chimneys... Never starve your chimney of heat. It needs heat to function
>properly.
People used to say this about natural gas boilers until 1970 :-)
Nick
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