Honeywell BDR91 / Honeywell Home evohome to...

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  • elprimo
    Automated Home Lurker
    • Mar 2019
    • 4

    Honeywell BDR91 / Honeywell Home evohome to...

    Hi folks,

    Looking for a little advice on moving on from our current set up, which is a Honeywell Home evohome > BDR91 > honeywell zone valve (V4043H, I believe).

    One small oddity - the house was originally a two-zone set up, but as it's not that big and the doors are all open all the time (cats) we run it as a single zone. One zone valve has had the actuator head removed and is set permanently open. The other works as normal. I don't think that's relevant, but just in case.

    I'd like to upgrade to full Alexa control. The current set up doesn't do that, and if I stay Honeywell I need new controller + new relay.

    Given that, is there any advantage sticking with Honeywell, or should I also be looking at Hive / Nest? Will it make any difference to the amount of rewiring at the relay box, or could I end up needing new zone valves?

    One issue is that the house layout means the controller doesn't have a good line of sight to the relay and connection can be intermittent. Anything that will resolve that without an extra booster would be good.

    Edit - and actually, thinking about it, given this is effectively a single zone system now, should I just be skipping the zone valves, leaving those both permanently open, and controlling the boiler directly?
    Last edited by elprimo; 2 November 2021, 10:07 AM.
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