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.
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.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!