permaculture

[Keith Johnson <keithdj@mindspring.com>]

I've found that several dry dogwood (4-5 in diameter) logs will produce 
durable coals that last overnight into the next afternoon, about 14-17 
hours. Similar results with Black Locust of the same diameter. This is 
even with the damper allowing fair amounts of air in. Caution: 
overdamping stoves for long burns usually result in long smoulders 
instead of long fires, with poor heat production, buildup of flammable 
creosote, and toxic gases added in. Get a magnetic stovepipe thermometer 
and monitor your stove's function, burn a hot enough fire (260- 460F) 
and make sure to seal cracks if the stove is old. Mass heaters, eg 
kacheloffen, rely on fast and hot fires with low fuel mass and will make 
the best use of the BTU's available.
Keith

Clint Popetz wrote:

> On Thu, Feb 09, 2006 at 09:17:49PM +0200, mitshell wrote:
>  
>
> > Is anybody aware of wood burning stoves/heaters that can be loaded
> > with wood once every 24 hours or something there about as opposed to
> > the regular fireplaces that need to have wood added every few hours?
> >    
>
> 24 hours is a bit out of reach, I think.  If you know what you are
> doing (and I won't claim to, having heated my house with wood for only
> two years) you can go to bed and not have to get up in the middle of
> the night to feed the beast.
>
> It's not so much the type of stove I think, but how dry your wood is,
> how good the species is, how thick it is, and how much thermal mass an
> insulation you have in your house.
> -Clint

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