On Fri, 24 Jul 2009 09:28:42 +0100, Lobster
wrote:

For some reason I can remember a piece by the 'inventor' Bob Symes on
Tomorrow's World circa 1985, demonstrating his "house of the future" -
among other things, he has just such a system, with the CH draining into
a gully outside. I can remember at the time thinking what a totally
simple but sensible idea.

David

The couple of times I've drained down my hot water storage tank, just recently
because it was gradually slipping through the floor, I've drilled a hole in the
kitchen ceiling and run the hose down and out the back door ! Crazy system.

Andy C