TADO Thermostat should have option to use 12V supply

MothershipCnnx

I am replacing thermostats in my existing heating arrangement with TADO thermostats.

Not uncommonly my UFH and heating is controlled by a Wiring Centre which supplies power to all my thermostats. This happens to be 12V DC. I am surprised to learn that the TADO relies on a battery to power it and connect be connected to the existing 12V or a 240V AC supply from the wiring centre. Batteries are bad for the environment and my electricity comes from a renewable source. It would be far better to use this power source rather than batteries.

TADO should allow their wired products to utilise existing power sources and not use environmentally damaging batteries.