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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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WB Greenstar 29HE conventional proper setting
Had this boiler as a relacement for a few months now with some
interesting experiences, but generally good impressions. My question is that with the old Stelrad (20 yrs old) we always ran it at minimum heat output on a time switch/controller. It was the smallest model and still to big for our 6 rad system, but it worked faultlessly. The 29HE looks good - is almost silent - but the instructions say to set it to 'E' setting which outputs at 75 - 80 degC, way above the pevious boiler. OK, the rads are all hot, but are the instructions correct in recommending this high setting? Is this a feature of condensing boilers? Would I waste gas by setting back to a low output? Thanks Phil |
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#3
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OK, the rads are all hot, but are the instructions correct in
recommending this high setting? Is this a feature of condensing boilers? Would I waste gas by setting back to a low output? Run it as low as possible, whilst still being able to adequetely heat the radiators, and being no less than 5C above the setting on the hot water cylinder thermostat. (i.e. if the HWC is at 60C, run at 65C, unless this makes the radiators too cold). If you have the built in diverter valve, you can set different temperatures for hot water and radiators. In this case, set the hot water 10C above the cylinder thermostat setting (for rapid recovery) and set the radiator temp as low as possible, provided the house still warms up in a reasonable time. In extra cold weather, you can bump it up temporarily. Christian. |
#4
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Thank you Andy & Christian
I think I understand what you're both saying and a new phase of experimenting begins . . . Phil |
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