How to fit a wireless room thermostat | fit Honeywell wireless thermostat

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Uploaded by on Jan 21, 2011

http://www.ultimatehandyman.co.uk/forum1/ shows how to install a wireless room thermostat to a combination boiler. Wireless room thermostats can often save fuel as they keep the room at the exact temperature that you require. The model fitted in this video is the Honeywell CM921 wireless programmable room thermostat.

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Uploader Comments (ultimatehandyman)

  • Good video mate, what size cable did you use.

  • @69chuddy

    If I remember rightly it was 0.75mm (heat resistant)

    Thanks for the comment

  • After watching this video i realised you are waaaaaaay smarter than me , and i am calling an electrician !!! lovely video btw

  • @calmdragon

    Thanks for the comment, I am really not that smart LOL

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All Comments (38)

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  • @AZKHAN12121

    The problem is that only one of you can control the boiler. So if you fit a wireless thermostat one of has to decide the temperature of the boiler. If he switches the temperature low you will be cold etc.

  • @ultimatehandyman Hiya, firstly a brilliant upload. Thanks alot. Now here is my problem.

    I have converted my house into two separate flat. Both of the flat has one boiler, as im living in one of the flat, i only have access to that boiler and not the other person living in the other flat. Would you suggest that I put a wireless thermostat in the other flat so the other person can also control the central heating system? What would you suggest? I am confused! Thanks

  • @MrCatComputers

    Thanks for the comment ;-)

  • @fatboon

    I only ever use the wireless stat now.

    The switch on the boiler time clock is set to be on permanently, so that the wireless stat can control the boilers temperature.

  • great vid, i had this thermostat fitted with a new boiler at our old flat. we have a house, which has a newer ferroli f24, but the diagram is identical to yours as is theu clock. now you have this installed, do you use the clock on the boiler to program it, or the stat? also does this overide the clock.

  • @khanny2002

    No, to be sure you are better off asking in the forum (just follow the links from my channel page)

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