replacement for a Honeywell CM927

[RETC2022]

Hi,

Does anyone know what product is a good replacement for a Honeywell CM927 wireless thermostat controller and BDR91 Relay Box that controls my electric underfloor heating?

I assume it needs to be another Honeywell product and the T4 wireless thermostat but I haven’t found any guidance on whether it’s compatible with electric underfloor heating.

Thanks in advance for any advice!

 

[Chuck]

Topic has recently been discussed here:

Replacing Honeywell CM921

Hi, I need to replace our Honeywell CM921 wireless thermostat. The screen has been failing for the last few years, it's about 13yrs old. I tried removing the screen and heating it over a toaster ala Youtube video I saw but it didn't help :) I'm looking at some second hand/nearly new ones on...

www.plumbersforums.net