I wish to replace my hard-wired Siemens room thermostat with a WiFi
unit. I can then locate it wherever it gives the best control, the
present location is terrible, right near a cold door.
Can anyone recommend a suitable unit? I see several out there,
including some brands that I have never heard of. Assuming a fixed part
is required for the interface to the wiring, there is room right next to
the Honeywell junction box. It will be wired in instead of the
Siemens, no socket control wanted.

I do not need anything fancy, no 'Smart' connection, not even internet
connected, just a Wireless version of the Siemens.

https://www.amazon.co.uk/Celect-DRF2...tral+heatin g

Or: https://tinyurl.com/yd5szgbx

covers the basic idea, but the reviews are not encouraging.

Helpful suggestions welcome.

Davey.