METALMICKY
Well-known member
- Jan 30, 2004
- 6,053
Hi. Just wondered whether the good folks of NSC might be able help on this issue with radiators powered by a newly installed combi boiler?
New Viessman combi boiler installed including a very neat programmable room thermostat that can connects by WiFi. All is well except for radiators which have all been fitted with brand new Drayton TRV's. The problem I have is the wide variance in settings required on the TRV's to get the radiators to the same temperature i.e. radiator in bedroom one is set to 2 and as one would expect is just luke warm. However, radiator in bedroom two is also set to 2 and yet is red hot as if the TRV was set to Max. Other radiators have the same variance.
A little bit of Googling initially seemed to suggest that radiators needed balancing. However, a further read suggested that balancing means adjusting the radiator valves so that the radiators all heat up at the same rate. Of course this is not my issue as they all heat up fairly rapidly but it's just the difference in settings required on the TRVS.
Just to confirm that it's a brand new combi boiler system and whilst we used our old radiators they were all bled and power flushed and when system was fitted there were no concerns raised about the working of the radiators.
Would appreciate any advice as want to avoid the installers sucking in their cheeks and suggesting we need brand new radiators. I should add that with the old gravity fed system the radiators worked fine with consistent settings on achieving the same temperatures.
And of course I have tried turning it off and on again
New Viessman combi boiler installed including a very neat programmable room thermostat that can connects by WiFi. All is well except for radiators which have all been fitted with brand new Drayton TRV's. The problem I have is the wide variance in settings required on the TRV's to get the radiators to the same temperature i.e. radiator in bedroom one is set to 2 and as one would expect is just luke warm. However, radiator in bedroom two is also set to 2 and yet is red hot as if the TRV was set to Max. Other radiators have the same variance.
A little bit of Googling initially seemed to suggest that radiators needed balancing. However, a further read suggested that balancing means adjusting the radiator valves so that the radiators all heat up at the same rate. Of course this is not my issue as they all heat up fairly rapidly but it's just the difference in settings required on the TRVS.
Just to confirm that it's a brand new combi boiler system and whilst we used our old radiators they were all bled and power flushed and when system was fitted there were no concerns raised about the working of the radiators.
Would appreciate any advice as want to avoid the installers sucking in their cheeks and suggesting we need brand new radiators. I should add that with the old gravity fed system the radiators worked fine with consistent settings on achieving the same temperatures.
And of course I have tried turning it off and on again
