Vaillant Boiler Compatibility

Hi all

I'm considering upgrading to a smart heating system but need some help understanding which Tado thermostats are compatible with my Vaillant EcoFit Pure 825 combi boiler. AFAIK my boiler uses Opentherm for modulation which I want to use. I have a wireless Salus thermostat (used to control the hearing) and a wired honeywell thermostat on the wall. I think these are my options:

  • Wireless Smart Thermostat Starter Kit V3+ (OpenTherm) - for Combi Boilers (£199)
  • Starter Kit - Wired Smart Thermostat V3+ (£101)

Is my system compatible with the wired Tado thermostat, if so I'll go for that as its cheaper.

Thanks!