Putting a new back boiler in safely. Plumber says boiler for water not safe to put pump on for radiators ? Why not if bubbling means time to circulate? And nice and hot?
Zoe

On 12/03/14 21:15, wrote:
Putting a new back boiler in safely. Plumber says boiler for water not safe to put pump on for radiators ? Why not if bubbling means time to circulate? And nice and hot?
Zoe


Any chance of that in English?

On Wed, 12 Mar 2014 14:15:40 -0700 (PDT), wrote:

Putting a new back boiler in safely. Plumber says boiler for water not
safe to put pump on for radiators ?

Soild fuel heat source? There has to be a gravity loop to get rid of
the heat in the boiler or it will boil and when they do it's not a
gentle little bubling noise but sodding loud bangs an wooshing
noises.

There can be a pump to circulate water around the rads but it must
not be in the gravity loop to the HW cylinder and/or heat dump
radiator.

Is the back boiler the only source of heat for the system or is there
also a gas/oil boiler as well? Getting them to play nicely together
is beyond most "plumbers". It's not difficult but you need to know
what you are doing.

--
Cheers
Dave.