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    Wiring up Horstmann RF room stat

    Hi, I have replaced an old programmer with a Drayton Lifestyle LP722 and decided to replace an old Honeywell mechanical (bimetal strip) room stat with an RF one. I bought the Screwfix Horstmann HRFS1 Stat but am not sure how to connect the two up. The boiler is an Ideal Mexico CF80 from the...
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