"Matt" through his brainache spat forth in
message ...
"Set Square" wrote:

A given size of pipe will deliver a
certain amount of energy *per unit time* - in other words, a certain
amount
of *power*. So your units need to be kW - *not* kW/hr or even kW-hr.

[And yes, I *do* have a degree in Physics]

You forget that these are plastic pipes connected with the
revolutionary copper free brass compression fittings referred to by
Dribble the other day. :-)

On Planet Zog the impossible happens all the time and normal earth
physics are a thing of the past. For example combi boilers actually
manage to fill a bath with lukewarm water before the boiler needs
another annual service.