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  1. R

    Alpha CD50 or Vaillant 937

    Which Storage combi-boiler performs best (flow rate, duration, ETC) I've narrowed it down to these 2 (but still open to suggestions). I need a combi because I have no space for a HW cylinder but I need enough HW for a 4 bed house with 2 bathrooms. does anyone have experience with either (or...
  2. R

    Storage combi-boiler - increasing water pressure

    I'm another unlucky one living in London unable to get decent pressure and flow rate from an old lead pipe water main. I'm getting 12 l/m at 4 bar - which isn't enough to supply anything other than a gravity HW system. Thames water told me it could cost £3k just for them to install the...
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