Central Heating thermostats

stevenrafferty · 5 May 2004

I have a sealed central heating system powered by a combi boiler and recently moved two raditors to new positions.

We just re-used the existing thermostats for the raditors.

However, we are now getting a hammering noise fro the two thermostats (not all the time) which goes away when we turn the thermostat slightly. I think its called pipe hammer and has something to do with the values and flow of water?

anyone any idea?

CH4 · 5 May 2004

Not all thermostatic radiator valves (TRV's) have a bi-directional flow capability, so should be connected in the flow to the radiator. Are yours connected in the return from the radiators?

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Central Heating thermostats

stevenrafferty

CH4

DIYnot Local

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