My first post....
I moved into a 4 bed large old house 1 year ago. it has a fairly new
combi boiler Worcester 35CDi. some of the rads never even get warm,
others did. others were very hot. At first i thought the boiler
wasnt up to the job of powering 16 mostly large rads however reading
other posts and not wanting to spend money on a bigger boiler i am
wondering if the pump needs upgrading f there's a circulation
problem. Trouble is its part of the boiler package so could be tricky
to replace or alternatively could an additional pump be fitted
somewhere else in the system?
any suggestions anyone? i dont want another winter of discontent !
Follow Adams suggestions above & hit the boost button on your boiler - great
boilers these and i`ve fitted a few to similar sounding properties (glad
your getting the gas bill not me though !). Replacing the pump with
bigger/extra one is not realy an option but make sure yours is set to
If the above doesn`t clear your problem then id suggest increasing the
pressure in your system (say 2.0 bar when cold) and slackening the valves of
the offending radiator to `pull` a quick amount of water through it, have
towels & drain trays handy though. Maybe also worth getting the system
cleaned out or powerflushed.
best of luck
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