permaculture

["John Schinnerer" <john@eco-living.net>]

Aloha,

> I have always brought combustion air in from the outside in an under
> floor  pipe to the front of the wood stove or fireplace.  The reason was
> that  rather than using warmed indoor air for combustion I was using
> outdoor air,  and thereby saving energy.

I wonder if much (or any) is really saved.  Feeding the stove cold outside
air means some of the heat energy from the burning wood is lost in warming
the colder air going into it, one way or another.  Might not burn as hot
(and thus as efficient) either, if incoming air is *really truly* cold. 
Six of one, half a dozen (or maybe seven) of another.

Anyone have access to heavy-duty physics modeling software and wanna try
this one out? ;-)


John Schinnerer, MA
-------------------------
- Eco-Living -
Cultural & Ecological Designing
People - Place - Learning - Integration
john@eco-living.net
http://eco-living.net