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    Grundfos UPS2: will 25-80 (180) head fit a 15 50/60 (130) body

    Tnks. My system (after two house extensions) has 22 radiators and two DHW cylinders. It is 40 years old in places and has run a UPS2 15 50/60 (130) and its predecessors since it was installed. The Thorn M56/76 21KW boiler gave sterling service but was clearly struggling (and kettling) badly in...
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    Grundfos UPS2: will 25-80 (180) head fit a 15 50/60 (130) body

    Will a Grundfos UPS2 25-80 (180) head fit a UPS2 15 50/60 (130) body (backplate)? The bodies are of different port-to-port heights but the heads themselves look pretty similar.
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