On Thu, 04 Nov 2004 17:35:02 +0000, pjdesign wrote:



Boiler Temp 80 ish.
Baz

OK - can help from a physics POV here... The inflow pipe will try to
get to 80C...

But with a low flow rate, it will be unable to maintain the surface of the
floor at a high temperature. Sufficiently low flow rate, and it won't even
manage to maintain a decent thermal gradient from the pipe to the surface.

So the low flow rate 80C water entering the pipe will be instantly cooled
and will lose a little bit of heat (as in joules) into the floor and thus
drop temperature quickly.

Yes - that works in theory...

Rather like spilling exactly one drop of boiling water on your hand.
Doesn't really do much.

Tim