I set up 'bargain' smart radiator valves at home and reckon they could save a small fortune - Nottinghamshire Live
Add-on Smart Radiator Thermostat - Wifi Add-On Smart Radiator Valve For Digital Multi-Room Control, Easy Installation, Save Heating Costs - Works With Alexa, Siri, And Google Assistant – tado° Shop
Are Smart Radiator Thermostats Worth It? | Blog | Wiser
Buy smart radiator thermostat | Bosch Smart Home
Aqara Smart Radiator Thermostat E1, REQUIRES AQARA ZIGBEE 3.0 HUB, Smart Thermostatic Radiator Valve with Voice Control, Geofencing Support, Compatible with HomeKit, Alexa, Google Assistant and IFTTT : Amazon.co.uk: DIY & Tools
Which? testing reveals the best smart radiator valves - Which? News