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I am installing 2 radiators in a room and am looking at creating a zone to control these - using a 2 port motorised valve, adjustable restrictor valve to balance this circuit against the rest of the heating installation, and a room thermostat.
The motivation is to be able to mount the radiators closer to the wall than can be achieved using TRVs, for aesthetic puroposes. These are rear tapped Ultraheat Aeon designer radioators - thus to use a TRV I need to fit a 90degree bsp elbow then mount angled TRVs under this with pipe exitting into the wall (or straight to floor but this doesn't affect spacing). Using the Ultraheat-recommended elbow & TRVs I end up with the gap betwen radiator fins and wall being around 80mm which to me looks very ungainly given that the fins are just 10mm deep. The recommended elbows and TRVs are very compact. I don't believe there is much scope for gap reduction by using components sourced elsewhere.
Basically what I'm effectivley doing here is creating a TRV with a remote sensor, which happens to control 2 radiators.
Will my zone work?
Is there a better solution?
Will a room thermostat give as good control as TRVs? I've read about the hysteresis built into roomstats resulting in slightly fluctuating room temperatures. I presume this doesn't happen so much with TRVs because they adjust flow according to demand locally rather than having the need for hysteresis to avoid frequent short (inefficient) bursts of boiler activity.
Have I missed something?
The motivation is to be able to mount the radiators closer to the wall than can be achieved using TRVs, for aesthetic puroposes. These are rear tapped Ultraheat Aeon designer radioators - thus to use a TRV I need to fit a 90degree bsp elbow then mount angled TRVs under this with pipe exitting into the wall (or straight to floor but this doesn't affect spacing). Using the Ultraheat-recommended elbow & TRVs I end up with the gap betwen radiator fins and wall being around 80mm which to me looks very ungainly given that the fins are just 10mm deep. The recommended elbows and TRVs are very compact. I don't believe there is much scope for gap reduction by using components sourced elsewhere.
Basically what I'm effectivley doing here is creating a TRV with a remote sensor, which happens to control 2 radiators.
Will my zone work?
Is there a better solution?
Will a room thermostat give as good control as TRVs? I've read about the hysteresis built into roomstats resulting in slightly fluctuating room temperatures. I presume this doesn't happen so much with TRVs because they adjust flow according to demand locally rather than having the need for hysteresis to avoid frequent short (inefficient) bursts of boiler activity.
Have I missed something?
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