Tim Hutzler wrote in a message to Craig Healy:
 TH> The 90% is probably close enough. If you recapture the heat 
 TH> from the exhaust and block, you can increase the figure to 
 TH> almost 99%. But, the risks with exhaust recapture seems not 
 TH> worth being too stingy. [grin]
They're not that risky,  that's how you got heat in a VW Bug,  sorta...
email: roy.j.tellason%tanstaaf@frackit.com 
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