Quote:
Originally Posted by AbyssUnderground
I have mine come on for an hour at 7am-8am, then 5.15pm-6.15pm, then 8pm-9pm and 10.30pm-11.30pm. In the coldest weeks of winter I put it on at 3am-4am too to take the chill off.
I tried keeping it on the whole evening when at home and it seemed to cost more on the bill. I have no thermostat except the mechanical ones on the radiators which are all on full because otherwise they never get hot.
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Are you sure those are thermostats on your rads and not just valves? If you have a thermostat on a radiator, it should allow the rad to run at full temp until target temperature is reached, then it should shut off the water flow.
If you just have a valve on a radiator, then it will restrict the flow at all times, and as you describe, will result in the radiator being permanently warm rather than properly hot.