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  1. M

    How to remove Grundfos UPM3

    Hello, how do I best remove this Grundfos UPM 3 which is blocked please? There is no give on the horizontal arms either side of it so I think I have to start dismantling more - but what's the "right way" to do it please? thank you.
  2. M

    38CDI: doesn't fire on heat demand, and Grundfos UPM3 stuck

    The cold snap made me switch heating on for first time in 6 months which has caused 2 unrelated problems on a well maintained Worcester Bosch 38CDI. Grateful for any advice on: 1) boiler doesn't respond to Nest thermostat 1's call for heat, either wirelessly or on manual override next to the...
  3. M

    How to cut architraves lengthways?

    Hello, I need to cut 2m architraves lengthways after replacing a window, down the red lines as shown. I have a jigsaw and mitre saw but can't see how to use either of these to get a perfectly straight cut. How would a professional do this please?!
  4. M

    Does a Worcester Bosch 38CDI need wiring centre for 2 zones?

    Hello. Slight breakdown in communication between plumber, who installed a new 38CDI combi to power existing CH and HW, and builder who installed wet UFH and manifold ready to connect to the boiler pipework. "Old" part of house has 14 rads, new UFH loop in kitchen is about 150m long. Plumber...
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