DIY Doctor

radiator not heating up.

Postby chrisroberts » Sat Oct 04, 2008 10:23 pm

radiator in kitchen not heating up. just had 2 new valves fitted. trv on the flow and a trv on the return. should i have a normal valve on the return side instead of a trv. are the trv's fitted with a none return valve in them. thanks.
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Simply Build It

Postby plumbbob » Sun Oct 05, 2008 11:29 pm

TRV's are not fitted with non return valves. Only one trv should be fitted to a radiator. The other end should have a lock shield (normal valve with a tamper proof cover) set to regulate the correct flow of water through the radiator.

The usual causes for a cold radiator is blocked pipe caused by an airlock or sludge.
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Postby screech » Tue Oct 07, 2008 9:22 pm

2 trvs, never heard of that being done before, how the hell would anyone balance that rad :?
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