DIY Doctor

Worth changing radiators ?

Postby jrees970 » Tue Feb 16, 2010 1:55 pm

I am considering having my (oil) boiler changed to a condensing combi boiler (it's about 15 years old and conventional system - which means we heat a hot water tank with water we rarely use).

Is it worth changing the whole system and getting new radiators as well ? The existing ones are probably 25 years old (dating back to when this was a solid fuel system before we bought the bungalow).

Are modern rads more efficient ?

(The rads are on a pumped circuit, currently the HW and one (bathroom) rad are on a gravity circuit).

My aim is a more efficient system that will last without problems.
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Simply Build It

Postby gisago » Sat Feb 20, 2010 10:23 am

If your budget allows then new radiators are more efficient, they give out more heat and quicker. It is recommended either way to have thermostatic radiator valves fitted to your old or new radiators. When your boiler is changed, the system should be powerflushed also to clean out any old dirt/sludge in the system. The boiler manufacturer will insist on that or they wont warranty the boiler.
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