replace thermostat

  1. L

    Replace Honeywell Programmer and Room Stat with Nest 3rd Gen

    Hi Looking for some advice....I have just purchased a Nest 3rd Gen and are looking to install myself. I have a Honeywell ST9400C programmer for heating and hot water positioned next to my oil fired Firebird Combi boiler. I also have a Honeywell room stat. I have photographed the existing...
  2. J

    Replacing Honeywell T40 with Drayton Wiser Heathub

    I am trying to install a new Drayton HeatHub (1zone), just trying to work out wiring as I am replacing Honeywell T40 thermostat. Images attached of exisiting wiring and new HeatHub wiring diagram. Cheers Jon 10D3C2B1-6E84-4DE4-988F-3E8C1B45CB6B by JonnyGo posted 20 Jan 2018 at 4:34 PM...
    • JonnyGo
    • Thread
    • drayton honeywell thermostat replace thermostat wiser
    • Replies: 6
    • Forum: Home Automation
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