ESi ESRTP4RFW Wireless Programmable Room Thermostat with RF Receiver TRV4 This means stored hot water

This means stored hot water stays at temperature throughout the day

The Quattro is lithium battery compatible and supports LiFePO₄ batteries from Victron (Victron LiFePO₄ Smart) and many third-party manufacturers

allowing the installer to balance temperature rise against available mains flow on site

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while an integrated mesh screen captures non-magnetic debris

ESi ESRTP4RFW Wireless Programmable Room Thermostat with RF Receiver TRV4 This means stored hot waterThe ESi ESRTP4RFW is a wireless RF programmable room thermostat that combines time and temperature control in a single battery powered unit, paired with a mains wired RF receiver. Its large backlit LCD screen and simple button layout make programming straightforward, while energy saving features such as Chronoproportional Control (TPI), Optimum Start, and Optimum Stop help reduce fuel costs and carbon emissions. Because the thermostat and receiver