I have searched the forum for an answer, but found conflicting advice. Since the searches were for bigger systems than mine, I thought I would ask the question again.
I have a smallish system of only five radiators in a small semi, with micro bore pipes. The main room has a room thermostat and no thermo on the rad, all the other rads (except the bathroom) have thermos on them. The boiler is quite small ( a Potterton Suprima).
I have the pump (circulator) speed set to 1-the lowest position and all seems well. With the recent very cold weather though, I can't help thinking it's not as warm as it should be. All the rads are very hot to touch and the boiler doesn't make any funny noises. Another post I read did say that at the lowest setting, you wouldn't get enough energy out of the boiler. Then again, another few posts say that the lowest setting that the system works at is the right setting. My understanding (very limited as it is) is that if the rads are hot, then moving the water faster won't get them any hotter.
Can someone help me find the proper, most efficient setting for my Grundfos Selectric circulator pump please?
I have a smallish system of only five radiators in a small semi, with micro bore pipes. The main room has a room thermostat and no thermo on the rad, all the other rads (except the bathroom) have thermos on them. The boiler is quite small ( a Potterton Suprima).
I have the pump (circulator) speed set to 1-the lowest position and all seems well. With the recent very cold weather though, I can't help thinking it's not as warm as it should be. All the rads are very hot to touch and the boiler doesn't make any funny noises. Another post I read did say that at the lowest setting, you wouldn't get enough energy out of the boiler. Then again, another few posts say that the lowest setting that the system works at is the right setting. My understanding (very limited as it is) is that if the rads are hot, then moving the water faster won't get them any hotter.
Can someone help me find the proper, most efficient setting for my Grundfos Selectric circulator pump please?