We have TRVs on all but two rads upstairs; the bathroom towel rail and the landing rad, nearest the thermostat.
When the new heating system was fitted, the rads don't seem to have been balanced at all - some rooms were getting warmer than others, the landing rad was getting warmer quicker than others so turning the stat of etc.
We have a system boiler (Baxi Platinum 32kw) that supplies the downstairs underfloor heating, unvented cylinder and upstairs rads. It's set to 65 degrees (mainly for the hot water).
I bought myself an IR thermometer and attempted to balance them aiming for a delta-T of 20 degrees, however I can't even get a difference of 10 degrees from most of the rads, if I turn the lockshield valve down any further, there's no flow through the rad at all!
My assumption is the flow rate at the boiler pump is just too high so even when the lockshield valves are turned right down, water is being pushed through the rads too quickly and my concern now is that my turning down all the lockshield valves I'm just strangling the pump, wasting more energy - or am I doing something dumb?
When the new heating system was fitted, the rads don't seem to have been balanced at all - some rooms were getting warmer than others, the landing rad was getting warmer quicker than others so turning the stat of etc.
We have a system boiler (Baxi Platinum 32kw) that supplies the downstairs underfloor heating, unvented cylinder and upstairs rads. It's set to 65 degrees (mainly for the hot water).
I bought myself an IR thermometer and attempted to balance them aiming for a delta-T of 20 degrees, however I can't even get a difference of 10 degrees from most of the rads, if I turn the lockshield valve down any further, there's no flow through the rad at all!
My assumption is the flow rate at the boiler pump is just too high so even when the lockshield valves are turned right down, water is being pushed through the rads too quickly and my concern now is that my turning down all the lockshield valves I'm just strangling the pump, wasting more energy - or am I doing something dumb?