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  1. W

    Balancing Rads with weather comp & variable speed pump

    Hi, hope you can help. I had a Viessmann 200 boiler installed a couple of years back, with weather compensation and modulating pump. I've been really happy with it and the weather comp works well. I've been renovating the house since then, room by room, replacing the old radiators with...
  2. W

    106Vac between earths - FIXED

    Just gone to turn the lights off in my living room, and at the same time turn on the upstairs landing lights - you can touch both easily. I felt a 'tingle' when doing the above, but only when touching the retaining screw of the living room lights (the only exposed metal on this switch, back...
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    Viessmann 200 with Weather Compensation.

    Evening, I've recently had a new boiler (19kW Viessmann 200W)and DHW tank (Vitocell 150) installed, to replace the old boiler. I decided to also go with weather compensation (Vitotronic 200 HO1B controller) and the fully modulating pump. I'm really pleased with it, keeping the house warm...
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