BRAND NEW // FREE UK DELIVERY // PRICE INC VAT\nESI Series 4 Wireless Programmable Room Thermostat ESRTP4RFW - BNIB\nOur ESRTP4RFW is a wireless programmable room thermostat which is simple to install & easy to use. With the ability to control combi boilers, system or heat only boilers via an S or Y Plan, the ESRTP4RFW meets boiler plus requirements and can be wall or stand mounted. The control features OpenTherm which automatically reduces the flow temperature of your boiler helping you save up to 15% on your gas use, significantly lowering bills. The ESRTP4RFW can be upgraded to a smart control with the addition of our ESWIFIHUB (sold separately)\nFeatures:\u2022 Easy to install wireless control\u2022 Simple to upgrade to smart control with the addition of ESWIFIHUB (sold separately)\u2022 OpenTherm communication which can save up to 15% gas when connected to an OpenTherm compliant boiler\u2022 Optimum Start/Stop, Delayed Start & TPI Technology for maximum energy savings\u2y