[Greenbuilding] woodstove efficiency: ashes/dryweight?

[YankeePerm at aol.com]

The amount of ashes generated reflects the proportion of incombustible 
mineral in the wood.   Inefficient combustion results in creosote and related 
uncombusted volitiles and charcoal, which is very beneficial when returned to the 
soil.   The ashes themselves are fertilizer.

Dan Hemenway

In a message dated 2/5/08 5:14:30 PM, 9watts at gmail.com writes:


> I'm curious if the amount of ashes generated over a season permits one to
> say anything about the efficiency of combustion? I get about 2 lbs of ashes
> for every 100 lbs of (Oak & Cherry & Fir) firewood (dry weight). I have no
> idea if this is a lot or a little. Or maybe there is absolutely no
> correlation? But I suspect someone on this list (Norbert?) might have
> thoughts on the subject.
> 
> Thanks.
> 
> Reuben
> 





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