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Thank you for detailed reply and feedback. Much appreciated.
Thermostat is definately the c27. It was used on my boiler and hot water tank system hence 2 channels and installer of combi unit retained its use.
You are correct on the thermostat being the non lamped T6360B. You also...
I am hoping someone can help with my query.
I am replacing my existing Centaurplus c27 controller and Honeywell thermostat with the Drayton wiser 1 channel system to control my vallient combi boiler (no separate hot water).
My first query is in regards to the thermostat. I understand I should...