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8 radiator'sThe Grundfos UPS3 is the recommended replacement, should be able to buy one for ~ £175 or so.
How many rads?.
It's a closed pressurised system is it ok to use one of these?You don't require a UPS3 even though you can choose a mode suitable for 8 rads.
I have 10 rads with a 6M Wilo Yonos Pico (around £120) which gives great control as the constant pressure (CP) and proportional pressure (PP) settings can be incrementally set between 0.5M and 5.5M which can be quite useful if a open vented system is installed, a 6M DAB2 might also be suitable.
Reply to the thread, titled "Heating pump recommend" which is posted in Central Heating Forum on Plumbers Forums.
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