1. OwainOW

    Another st699 to hive thread

    Hi all, Sorry to add another thread but I’m looking for some help. I have installed a hive v3 water and heating replacing my old st699. This was prompted by removing the old thermostat that I thought wasnt working and doing nothing to find it was infact setting the heat of the house and plunged...
  2. C

    Wireless thermostat to replace one of three wired

    Hello, I have a Honeywell ST699 programmer and three thermostats. I want to replace the one in the living room with a wireless one (Salus RT300RF). One is in the loft and the other is in the garage next to the boiler. The Salus needs a permanent live. The living room stat is only live when...
  3. B

    Honeywell St699 problems I can't find any examples of this.

    forgive the basic errors I'm not an expert on any of this. We have a hot water tank and gas central heating it is controlled by a dial thermostat and a Honeywell st699. The one day two cycle one... If the system calls for hot water OR central heating then there is no issue and it works fine...