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  1. G

    Vaillant Issues

    That's great to hear. I knew it would be the cylinder :-) So looks like I'll be replacing mine too. The Range Ultracal looks like it does the job. The Range brochure says I'll only need an 80l cylinder for my 2 bedroom house, though I think I might overspec it to be on the safe side and go...
  2. G

    Vaillant Issues

    I've been suffering from similar symptoms to Vince101 (boiler cycles when driving HW only) and would like to hear if replacing the HW cylinder fixes Vince101's problems. I don't believe the story of the pump being too slow, given that the CH-only scenario works fine. The "resistance" of the...
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