Optimising Domestic Heating (UFH and Radiator mix)

[AliMcLeod]

3 minutes ago, PeterW said:

I doubt towel rail has a trv. Without a bypass of some sort you could find the boiler cutting out due to an overheat die to lack of flow 

 

They're probably just valves then. Same question: If i turn both towel values off - would that cause an issue with the water nowhere to go (I'm showing my lack of knowledge in this area here ?) 

 

EDIT: But... with my setup where the rads can only get flow when the downstairs UFH is on, could the lack of flow actually happen?

Edited August 9, 2018 by AliMcLeod

[PeterW]

Yep they are probably standard valves so switching both off would potentially cause a problem. 

 

As it stands though you can’t use the towel rads unless the UFh is on and tbh they can be pretty useful although that also depends on having a stat in a room without a TRV too - usually an upstairs hallway. 

 

I’ve also dropped you a PM

[AliMcLeod]

8 hours ago, PeterW said:

Yep they are probably standard valves so switching both off would potentially cause a problem. 

 

Valves - no idea why I thought they might be TRVs.

 

 

Edited August 9, 2018 by AliMcLeod

[PeterW]

@AliMcLeod they are standard valves not TRVs so you can go ahead with what we suggested ..!