Second thermostat or add-on wireless receiver?
We are have a Vaillant EcoFit Pure 835 combi boiler with no hot water tank.
Downstairs we are having water based underfloor heating in a single zone.
Upstairs we are going to have a mix of Smart Radiator thermostats and standard thermostatic radiator valves set to frost protection.
I’ve ordered a V3 wireless Starter Kit which has:
Tado° Wireless Temperature Sensor
tado° Wireless Receiver
tado° Internet Bridge
Smart Radiator valves
I want the upstairs to just work based off the radiator thermostats. The plumber thinks we need a new thermostat because the old thermostat ran on 24 volts and they needed 230 volts to open the valve. I don’t see why we need a second one.
Would a second thermostat work or would the add on wireless receiver be best?
Thanks!
Chris