new boiler/ trvs Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[tomkev1]

When an old gravity fed boiler is replaced by a condensing boiler, does the building regs state that all existing radiators must all have a trv valve fitted to them.I would personally recommend that they were fitted. Obviously i would fit them to a new complete refit.

[sparx]

Part L of building regs require all rads to have TRV's except one, in which area there should be a room stat to prevent boiler cycling once all areas up to temp.
not sure if this applies to refurbs or only new installs though.
I am sure some one will soon say!

[tomkev1]

[quote="sparx"]Part L of building regs require all rads to have TRV's except one, in which area there should be a room stat to prevent boiler cycling once all areas up to temp.
not sure if this applies to refurbs or only new installs though.
I am sure some one will soon say![/quote]

Thanks for reply sparx.I do understand the new installation regs
its just the refurb bit that i,m not with.I have been told that they should be fitted on boiler only renew jobs, but i'm not so sure.I just want to know for definate for legal reasons and peace of mind.