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  1. M

    It's got all of the components of a C-Plan system, but it's not wired up like that!

    I've spent quite a few hours trying to fathom how my boiler is configured. At first sight it appears to have all of the components of a c-plan system, 28mm 2 port valve, hot water cylinder thermostat, central heating pump and room thermostat. Firstly the controller, a British Gas UP2 (Drayton...
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