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adding thermostate vavles?

I have a worcester combi 350,is it possible to add thermostate valves to all the radiators, or do I need to leave one radiator fully open?

sands, January 2008

home Fix label Heating label_important Home Heating Systems category Worcesterdone

Yes it would - the bypass simply allows the pumped boiler water to circulate - hence not stressing the pump. With the radiators fully open, the water flows through them so the bypass valve can be shut - but always leave one radiator fully open so that the boiler can disperse the heat that it produces.

John, January 2008

thanks john for your quick reply. the boiler is a worcester 350 combi, in the paper work it mentions the presence of a system by-pass, but it only mentions it once, if the boiler definetly had a system by-pass would your answer still be the same?

sands, January 2008

You need to leave one radiator fully open (usually the bathroom one). All of the rest can have thermostatic valves.

John, January 2008

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