"Matt" the resident space cadet wrote in
message ...
"Doctor Drivel" wrote:

You could have a few small DHW vessels on the loop, in series, like under
sink units, have a pressure vessel too. So when you draw off small
volumes
of water at the local point, the combi does not kick in as there will be
no
flow through the boiler until the pressure has dropped - avoids nuisance
firing.

All combi firing unless it is in a high velocity trajectory towards
the sun is a waste of time

Our space cadet is into the sun again. I wonder how much that Treki uniform
cost him.