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Recent content by SoggyBiscuits

  1. S

    "Unique" CH/HW design with dual pumps

    Yes the system used to violently pump over, but I understand this has reduced since the pump and boilers were moved. This was all done in the original non barrier grey Hep2O plastic pipe for all CW, HW and CH loops.
  2. S

    "Unique" CH/HW design with dual pumps

    Looked to be set to around 60 degrees. Old boilers were non condensing, new one is also non condensing. I think there was a lot of oxygen in the system, could a lot of that be down to the CH pump on the return putting the system under negative pressure? I did think it would probably need some...
  3. S

    "Unique" CH/HW design with dual pumps

    Possibly, very difficult to say without dismantling things further, may also be teed into the feed side. All I can say for certain at this stage is it goes somewhere in the vicinity of the manifold. The temperatures have never been measured as far as I'm aware. Circulators are Grundfos UPS2...
  4. S

    "Unique" CH/HW design with dual pumps

    Thanks for the replies, I've attached a simplified diagram of the system as far as I can ascertain at the moment. I'll apologise in advance, it was just a quick sketch! I've had to make some assumptions as a lot of this stuff including all the heating manifold is buried inside walls and...
  5. S

    "Unique" CH/HW design with dual pumps

    Yes I believe thats how the stats work, but I'm still working through the wiring side of it. The controller is a CentaurPlus C27 which I think has mainly been just used as a timeclock as the CH stat is located in a cold hallway and never used, which isn't ideal either. No additional pump on the...
  6. S

    "Unique" CH/HW design with dual pumps

    I’m hoping for some advice regarding a somewhat “unique” heating system, but appreciate this might be a bit of an odd one! I’m familiar with S plan, Y plan, even W and C plan. This is not that... Essentially it is an non-condensing traditional heat only oil boiler (no internal pump) with four...
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