Radiator Question

sist_si

sist_si

sist_si

Associate
Joined
28 Nov 2004
Posts
1,237
Location
Birmingham
Hi guys,
One of the thermostat valve thingys on a radiator in my house had broke off somehow. I was wondering if they're easy to replace? It looks just like a matter of undoing it from the rad and the pipe and putting a new one on there but I thought I'd check if (apart from the obvious wetness) there are any other hidden dangers awaiting me there.
Also, is this the kind of thing I'd need to buy:
http://www.wickes.co.uk/invt/160018

Its just a standard central heating system by the way. Nowt fancy.

Ta!
 
Yes mate, that's right.

Had the same kind of problem with one of my radiators (well the valve just stopped working rather than getting broken).

The actual thermostat thingummy doesn't go near the water in the radiator so you can just unscrew and replace it without getting wet. It's nice and easy and about a 5 minute job :)
 
dymetrie said:
The actual thermostat thingummy doesn't go near the water in the radiator so you can just unscrew and replace it without getting wet. It's nice and easy and about a 5 minute job :)
Click to expand...

If if is just the thermostatic actuator on top which has broken off then you should be able to replace that part from exactly the same make/model of thermostatic radiator valve. You can't just buy a replacement thermostatic radiator valve of some other type and expect the top bit to fit...

If you can't get a replacement top part to fit then you'll need to replace the whole valve which will involve removing the radiator and draining the central heating system. (One option to avoid this is to just remove the radiator and then use a freezing kit to isolate the valve, enabling you to replace the valve without draining the whole system - I took this approach with a leaky thermostatic valve last week)
 
Cheers for the responses guys!
The thermostat has actually snapped so its the whole valve I'll need to replace. When you say drain the whole system, do you mean literally let all the water run out when the valve bit is taken off (obviosuly with the boiler inactive)?
 
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