Replacing radiator valve: job for plumbing newbie?


B

bruce_phipps

My kitchen radiator (its the one nearest the boiler) doesn't warm up as
much as the other rads in the house.

I suspect the radiator valve may be faulty as the thread seems
knackered -- the valve feels loose and turning it has no effect on the
radiator temp.

Say I planned to remove the existing thermostatic valve and replace
with a basic replacement such as:

Part No: 5013866047183 at www.diy.com


Would this job be within the scope of a plumbing newbie such as myself,
who has no specialised plumbing tools.

Thanks
Bruce
 
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D

Dave Plowman (News)

My kitchen radiator (its the one nearest the boiler) doesn't warm up as
much as the other rads in the house.
Have you checked there's no air in it? And also measured the temperature
of the pipes going in and coming out?
I suspect the radiator valve may be faulty as the thread seems
knackered -- the valve feels loose and turning it has no effect on the
radiator temp.
If you mean a TRV, remove the top and see if the pin moves down against
spring pressure, and returns to the up position. It's this that is likely
to be stuck. Tapping it with a hammer might just free it. Give it a squirt
of WD40 or similar before.
Say I planned to remove the existing thermostatic valve and replace
with a basic replacement such as:
Part No: 5013866047183 at www.diy.com

Would this job be within the scope of a plumbing newbie such as myself,
who has no specialised plumbing tools.
It depends. Obviously, you'd need to drain the system. And make sure the
replacement is identical. Not all the threads, etc, always are between
makes, and unless you can remove the olive on the pipe, you'll need to use
this and the nut from the 'old' one.
 
Z

zymurgy

bruce_phipps said:
Say I planned to remove the existing thermostatic valve and replace
with a basic replacement such as:

Part No: 5013866047183 at www.diy.com

Would this job be within the scope of a plumbing newbie such as myself,
who has no specialised plumbing tools.
It is a relatively simple job if you drain the system down first. There
are ways and means to change the valve without draining down, but the
potential to flood your house with black staining water is very great
if you're a beginner at it.

Tools required are very basic, couple of wrenches and a hacksaw will do
it. The old olive can be tricky to get off if it's been on a while.

Cheers,

Paul.
 
B

bruce_phipps

It is a relatively simple job if you drain the system down first. There
are ways and means to change the valve without draining down, but the
potential to flood your house with black staining water is very great
if you're a beginner at it.

Tools required are very basic, couple of wrenches and a hacksaw will do
it. The old olive can be tricky to get off if it's been on a while.
Thanks. I'll check for a stuck TRV first before I start removing
radiators.

Bruce
 
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D

Dave Philips

When you refill the central heating system, you'll need to add
inhibitor to the water supply tank, to de-oxygenate the water,
otherwise your rads will begin to rust from the inside...
 

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