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  1. R

    Adding Room stat

    I have a fully pumped S plan HW/CH system with a potterton EP2001 programmer, but no room stat at all. Given the escalating Oil price it seems to make some sense, to say the least, to add one. Can someone guide me what would be the simplest stat to add and where this wires in ? Cheers
  2. R

    Perplexing heating / water problem

    HELP ! The problem is that I have hot water in the expansion tank in the loft. It's steaming and wetting the felt and timber in the roof. I have an open vented central heating system with pumped hot water. The boiler is an oil fired Gemini boiler located in a utility room. The...
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