"geoff" wrote in message
...
In message , IMM
writes

"The Natural Philosopher" wrote in message
...

Ludicrous. Off the shelf piston and Stirling engines/gennys are run
off
natural gas.

No. Turbines are very effecient beasties. More efficient than
stirlings.

Cost? Stirling and IC genies are freely available.

I suppose you just rub the lamp and out they pop

Nice one Maxie, and not even 1st April.