On Thu, 2 Feb 2012 21:43:16 +0000 (UTC) Andrew Gabriel wrote :
The Celsius 25 design came from a hugarian company
they took over, IIRC. It was one of the few in UK which had
a stainless steel heat exchanger at the time.

Romanian I think. My recollection is that the heat exchanger is a
an alloy lump with end plates bolted on (like a car cylinder head),
gaskets a potential weakness.

--
Tony Bryer, Greentram: 'Software to build on',
Melbourne, Australia www.greentram.com