Re: homemade forced convection woodgas campstove

["Chris Smith" <hotspringfreak@hotmail.com>]

Harmon,

   Would you mind sharing the configuration of that stove with us?  
Idiosyncrasies, tips and such.

Thanks,
     Chris Smith



>From: Harmon Seaver <hseaver@cybershamanix.com>
>To: Keith Addison <keith@journeytoforever.org>
>CC: stoves@crest.org
>Subject: Re: homemade forced convection woodgas campstove
>Date: Tue, 27 Nov 2001 06:28:11 -0600
>
>Keith Addison wrote:
>
> > Fine for camping, not fine for indoors.
>
>      Have you looked at the Reed/Larson IDD stove? I can't see what forced 
>draft
>is going to do to make this any cleaner burning. My latest version gets a 
>pretty
>nice blue flame. It's essentially smokeless, except for initial startup. A 
>forced
>draft isn't going to do anything to improve this -- or am I missing 
>something
>here?
>      I can see some design work needed for indoor use which would add a 
>chimney to
>the outside -- but that would also be true of any forced draft design.
>
>(snip)
>
> >
> > For Third World use.
> >
>
>     Well, for 3rd World, it's also going to have to be either very simple, 
>so that
>it can be easily manufactured by local users on site with cheap, easily 
>obtainable
>components. Which would preclude, I'd think, anything with batteries, 
>electric
>motors, stirling engines, etc.
>       Or it's going to have to be very cheap to make here and ship in vast
>quantities to be given away/sold for cost -- and I don't know if that's 
>going to
>be possible even with as simple as design as the tin can IDD stove. Or 
>desirable
>-- technology transfer is not always a straightforward thing, as I'm sure 
>you
>know. "Give a man a fish" vs. "teach him to fish", etc.
>        I can see the possibility of improving the IDD stove (the afore 
>mentioned
>chimney, for one) which might be might be effective and fairly simple to
>implement. My next model will attempt to preheat both primary and secondary 
>air by
>putting the Reed/Larson IDD stove into another slightly larger can so the 
>air has
>to come down from the top, along the outside of the IDD stove to reach the 
>primary
>draft opening in the bottom, and, of course, the secondary air inlets above 
>the
>fuel bed.
>        And maybe this "outside" can would also facilitate the adding of a 
>chimney.
>Think of setting the whole IDD stove inside a 10L drum (if such a think 
>exists,
>I'm thinking of the cooking oil containers sent by aid agencies) -- but 
>OTOH,
>perhaps this also is becoming much too complicated. How are you going to 
>get 3rd
>Worlders to adopt chimneys when they have no stove pipe?
>
>
>
>--
>Harmon Seaver
>CyberShamanix
>http://www.cybershamanix.com
>
>
>
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