> "AJH"  wrote (snip):-
>
>> Speaking of practical stirling engines I did learn that british gas,
>> or whatever they are now called, are not supporting the
>> stirling-in-the-kitchen 800W(e) chp system any longer, what went
>> wrong?
>

Bit late in the day but I tripped over this while looking for something 
else:-

http://www.delta-ee.com/downloads/Microgen.pdf


Nick H