I had a new bolier fitted ove the summer (a Valiant combination one)
and had removed some radiators for redecoration.
I'm sure the heating engineer said there was a special procedure for
replacing these on sealed system amd wondered if amyone could explain
what this is.
I assume is something to do with keeping the pressure up ?
It is easier with two people. Then you can have one at the radiator, to turn
the bleed key off when it is full and one at the filling point, keeping up
For the lazy or friendless, you could always install a pressure reducing
valve set to 1 -1.5 bar in the filling loop and just leave it on whilst
going around the radiators to bleed. Must remember to turn it off and
disconnect the hose afterwards, though. Obviously, this is an option that
you don't have, unless you fancy some plumbing practice.
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