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  1. M

    crumbling TRV heads - whats the odds

    Hi again guys - thanks again for helping me sort my central heating recently (you know who you are :wink: ) I swear my central heating is jinxed. I have Myson 2 way TRVs fitted to all but one rad (the one in the same room as the stat). This week not one but two TRV heads I noticed were...
  2. M

    pump favours HW only

    Hi - I have a pump which seems to work for HW only! I say this because I have (please don't laugh) recorded the sound of it using a mic and analysed the sound wave using a sound studio software. The waveform of the pump when HW only is called is a regular sine-type wave indicating a 'pulse'...
  3. M

    Smartfit motorised valves - normal range of motion

    Hi everyone - thanks for letting me use your forum. :) I wondered if anyone had experience of smartfit motorised valves. I have two - one for HW and one CH - on my gas central heating system just past the pump. When called at the controller (Honeywell room stat) the HW one moves fully to...
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