Products tagged with 't4 wired programmable thermostat'

The Honeywell Home T4H110A1021 is a wired wall‑mounted thermostat that delivers precise time and temperature control for domestic heating systems. Compatible with 24‑230 V on/off boilers and zone valves, it supports 5‑2‑day (and 7‑day) scheduling, has intuitive programming, frost‑protection and a large backlit display - ideal for UK homes seeking dependable, energy‑efficient heating control.