Why doesn't anyone sell a Stirling that produces power?

[stan.hornbaker]

See the last two posts by Joe McClean in the Waste Heat Forum under "The Ultimate Hot Air External Combustion Engine?"

Joe has made a detailed analysis of the engine.

[jgposner]

Ok, Maybe this stuff is over my head. I'll just buy the first engine that is proven to work. It's just that I have all this money burning a hole in my pocket and I really wanted that that cool new lawnmower. Just to be clear, Joe is saying that the cyclone engine will not be able to power a lawnmower.
Joel