Dan Oelke 00:43 2004-04-07:
>I'm guessing that their claim 90% efficiency

As I read that page they mean 90% of the energy from the combustion gets to the hot side of the engine as heat.  The rest is lost by not fully combusted fuel, heat escaping by the exhaust gases, leak of heat to other places etc.

(Still it is impossible to reach over 90% as long as they do not condensate the water that is a byproduct in combustion; almost no heater do that, so almost everybody pretend it do not exist... :/ )

Also, see their own specs at http://www.whispergen.com/specs.html where they state output power in electricity and heat, roughly 1/10 of the total output is electricity.

I find that very believealble.

/Morgan


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Morgan Olsson, Kivik, Sweden

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