


ESI ESRTP4RF+ 4 Series Wireless Programmable Room Thermostat
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
ESI ESRTP4RF+ 4 Series Wireless Programmable Room ThermostatThe ESRTP4RF+ is a wireless programmable room thermostat which is simple to install & easy to use. 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. Features Easy to install wireless control removing the need for additional wiring Opentherm communication which can save up to 15% gas when connected to an Opentherm compliant boiler
Quick Dispatch:
Your ESI ESRTP4RF+ 4 Series Wireless Programmable Room Thermostat orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your ESI ESRTP4RF+ 4 Series Wireless Programmable Room Thermostat ships.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Well-made!
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Reviewed in the United States on April 23, 2026
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