On Mon, 13 Nov 2006 14:23:15 -0000 Doctor Drivel wrote :
You will find Heat Pumps will come in, and they are, with element
backup, more complex than simple gas boilers.

There are no simple gas boilers any more. Surely a heat pump is a
fridge in reverse, CH pump and perhaps a heating element. My last
fridge had been running for 24 years without any problems when I
took it to the dump, and so far (fingers crossed) I've never had a
CH pump fail.

--
Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk