Replaces a mechanical thermostat and lets you heat the house on a schedule from your phone, with holiday mode and usage history. Works with most combi boilers.

Key specs • Display: backlit touchscreen • Schedule: 7-day, 6 periods a day • Modes: holiday, frost protection, boost • Control: app and voice, with usage history • Compatible: most UK combi boilers, 2-wire connection

In the box Thermostat, back plate, screws, wiring diagram

UK notes Check your boiler wiring before buying - most UK combi boilers use a simple 2-wire switched live, which this handles. If you have an S-plan or Y-plan system with a cylinder, you need a different type.