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I bought one on Saturday. Firmware is unchanged, though it looks a little different on the front - there is a Honeywell Home badge and it is now immediately above the LCD screen

Mine too. Great work. Only thing that is not immediately obvious is how the Winter threshold that is now user adjustable is set. -10C was no use to me so I had it turned off. Any clue where the user...

I have a fully wired Y plan system, set out exactly as in the Evohome wiring guide:

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What I am trying to get my head around is what changes need to be made to convert this to O/T boiler...

It works perfectly in electric zones. Now have one electric UFH zone (BDR91 controlling the already installed relay) and two electric towel rail zones up and running. All the optimisation features...

Many thanks. Very efficient, and update completed. Happy Christmas!

I have this working well too. What I found was the need to modify some of the "room names" in the Alexa app to make the recognition more reliable - note, this does not change the room names/zone name...

Maybe this is down to a deterioration in battery power in the HR80, and a corresponding drop in signal strength. I've noticed this, too, on a couple of HR80s that are furthest from the HCM200D....