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  1. J

    CM907 telephone control

    I am thinking of fitting a CM907 to replace a Honeywell T6620B Thermostat. I would like to be able to communicate with it by phone. Is this possible, and what interfaces are available in UK? I don't think I can go to CM927 with wireless connection. My boiler is in an outside shed, and I...
  2. J

    Honeywell CM and CMT 900 series

    Does anyone know what differences there are between the CM and CMT versions of the 900 series. It seems that current units are CMT, but the info on Honeywell websites seems to refer only to the CM series.
  3. J

    Honeywell CM901/907. Cycles per hour

    What does "cycles per hour" mean? Does it mean that the boiler turns on/off at this rate all the time? Can I disable this feature?
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