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    Drayton Wiser Radiator Thermostats - will they fit?

    Just received an email from Westherm and they have confirmed it is M30 1.5mm, hence I can fit a Wiser Radiator Thermo without an adapter. The Westherm 6 is also sold by B&Q and Tradepoint under a Regis brand, so I think the Westherm 6 is unusual in their range, since they must have just put...
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    Drayton Wiser Radiator Thermostats - will they fit?

    Yes, I think I have Westherm 6. Measuring is difficult, since there isn't a lot between 30mm and 28mm. The inside ring is just 30mm and the outside just over. See photos. Annoyingly I think I have to buy adapters.
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    Drayton Wiser Radiator Thermostats - will they fit?

    That's my problem. I don't know what I have. Do I have M30 1.5mm or something different?
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    Drayton Wiser Radiator Thermostats - will they fit?

    Can I fit the Wiser Radiator Thermostats to these TRV valves? I think Wiser require M30 1.5mm valves and I suspect I have Comap M28 1.5mm type. I think I have Westherm 6 TRV's, but I am not sure. Do I need the following adapters? I hope not given the extra cost...
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    Drayton Wiser 1 - replacing existing wired thermostat

    Excellent! Just done that and it has worked thanks! Makes sense since the thermostat is effectively connecting the red and yellow when it gets cold! Cheers!
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    Drayton Wiser 1 - replacing existing wired thermostat

    I have purchased a Drayton Wiser 1 to replace my existing Drayton LP811 programmer with a wired thermostat. I have an Alpha CD25C combi boiler single system. I am confused by the installation instructions, since it initially just says: "If there is an existing wired thermostat connected via...
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