System is Vaillant system boiler feeding a Megaflo and central heating system upstairs and UFH downstairs. Controlled by 2 separate thermostats.
The upstairs rads get hot very quickly which is great, but the water passing through is very noisy. The rads all have TRVs and if they are on 2-3 then the noise dies down, but of course the rads don't get hot.
How can I get the heating to be less noisy? Bled the rads a few times - no air.
thanks!
The upstairs rads get hot very quickly which is great, but the water passing through is very noisy. The rads all have TRVs and if they are on 2-3 then the noise dies down, but of course the rads don't get hot.
How can I get the heating to be less noisy? Bled the rads a few times - no air.
thanks!