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  1. J

    Replacing Honeywell CM707 with Nest

    Hi all I'm looking to change my existing Honeywell CM707 digital thermostat with a Nest. Connected to an Ideal Logic Combi 35 boiler. The Nest comes with a heat link (relay) box and then the thermostat itself, but I believe the CM707 is connected directly to the boiler as I can't see a relay...