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Hi All, I need to get some advice before I start a bathroom refurbishment. The nature of problem is thus: - Some recent renovation work in my house ended up with the plumber/builder routing the main feed to/from the boiler to the pump and rest of the heating distribution. However, it...

Hello, My plumber installed an Alpha 2L 15-60 and not an Alpha 2 as requested (and thus we don’t have the autoadapt feature). I have a feeling there is less overall output now (not all rads getting as hot), as per my previous old fixed 15-60 pump – an earlier Grundfos model. I need to...

Hi, We have just installed 3 extra radiators onto a branch of the heating circuit that is run off a 15mm pipe. This used to have just one rad on it. These rads are not getting as hot as the rest of the house (even after balancing). I've just read on this forum that a rule of thumb is...