Recent content by oldiediyer

I have an old Satchwell TLX2356 room stat wired with a Honeywell k42008628 frost kit. The wires in the room stat are Yellow to terminal 1 Red to terminal 3 Blue to terminal 4 Both the Yellow and Red wires are constant live I want to replace with a Honeywell DT90E stat , can you advise me on...