ESi Wired Programmable Room Thermostats

A smart programmable thermostat designed to optimise heating and hot water control while reducing energy usage. Featuring OpenTherm modulation, it automatically adjusts boiler flow temperature to improve efficiency and lower running costs. Compatible with combi, system, heat-only boilers and heat pumps, making it a versatile solution for modern installations. Key features: 2-channel control – heating and hot water Compatible with boilers and heat pumps OpenTherm with DHW priority for improved efficiency Control via thermostat or mobile device Optimum start/stop and boost function Flexible programming: 7-day, 5-2 or 24-hour Hot water time & temperature control (with cylinder stat) ErP Class 5 rating 2 x AA Batteries Included Manufacturer Codes: Grey Version – ESRTP8-G White Version – ESRTP9-W