Recent content by Gareth humphreys

  1. G

    Adding Vaillant wireless thermostat to existing system

    Hi, thanks for the info! so, can I change the controller from multi zone to mono zone? ie: can I run two valves from one electrical connector on the controller and move it’s switch to position “0”?
  2. G

    Adding Vaillant wireless thermostat to existing system

    Hi all, I have a three story home, one VRT350 thermostat in the hall for downstairs, another VRT 350 thermostat on the top floor landing. The problem: the downstairs thermostat is on the cold north side of the house, and the living room is south facing and gets really warm. So there can be...
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