Bought this
The Screwfix site helpfully suggested "2-wire installation" which sounded j= ust like the 2 wires I had.
Unfortunately, it seems it needs a live / neutral for the receiver itself, = as well as the live / switched live (and neutral, not sure?) for the commun= ication with the boiler too.
I can conceive in my mind a set up which has a receiver powered by a re-cha= rgeable battery which re-charges only when the switched live is initiated b= y the temperature sensor, but just because I can imagine it doesn't mean a)= it exists or b) it would be feasible.
Are there any wireless thermostat solutions which would, without additional= wiring / cabling, allow me to do a straight swap from my Drayton Digistat =
3 with the above described cabling?Thanks!
Matt