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Subject: Market Farming
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- From: "Wyatt Jones" <wyatt_jones AT netzero.com>
- To: <market-farming AT lists.ibiblio.org>
- Subject: Re: [Market-farming] outdoor wood furnaces
- Date: Sun, 28 Dec 2008 11:00:54 -0500
The better gasification units put out
about 0.1g/hr per 10,000 btu, sometimes less, which is pretty clean and are
about 90% efficient which is pretty good. You won't find a Wood Doctor
even close to that though they might be working on one given the upcoming
EPA regulations. The majority of manufacturers out there don't meet the
regulations. I'm not picking on wood Doctor, it was just the one mentioned
so I used it as an example. Gasification units burn in excess of
2000F and work partly by recirculating superheated air to boost
combustion. The gas exiting the chimney is around 200-300 degrees.
With these units you need to use well cured wood or the polution will go up and
the efficiency will go down until the wood dries out in the boiler. You
can also get alternative fuel backups, usually propane, if your schedule doesn't
allow you to be around at times but of course that also costs money. The
basic premise of these units is a three stage process the wood is turned
into charcoal, releasing combustable gas which is blown down and burned in
the next chamber, the charcoal burns in the first chamber as well, though
slower, and also releases heat.
Wyatt
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-
Re: [Market-farming] outdoor wood furnaces,
Wyatt Jones, 12/28/2008
- Re: [Market-farming] outdoor wood furnaces, Square Ft Gardening, 12/28/2008
- <Possible follow-up(s)>
- Re: [Market-farming] outdoor wood furnaces, Wyatt Jones, 12/28/2008
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