Our ESRTP4RFW 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. The ESRTP4RFW can be upgraded to a smart control with the addition of our ESWIFIHUB (sold separately)


  • Easy to install wireless control
  • Simple to upgrade to smart control with the addition of ESWIFIHUB (sold separately)
  • OpenTherm communication which can save up to 15% gas when connected to an OpenTherm compliant boiler
  • Optimum Start/Stop, Delayed Start & TPI Technology for maximum energy savings
  • 7 Day, 5/2 Day or 24 Hour operation offering full flexibility over your heating control
  • Landlord service reminder, ideal for social housing or rental properties
  • Automatic summer/winter time change
  • Easy to use, wall or stand mountable
  • Holiday Mode to allow control when you’re away, saving energy
  • 3 Year warranty for complete peace of mind
  • ErP class 5 energy rating for maximum energy efficiency

Product Description

The ESRTP4RFW is easy to install, reliable and value for money. Helping you and your customers reduce energy use and lower costs.

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 ESRTP4RFW can be easily upgraded to smart control with the addition of our ESWIFIHUB (sold separately)

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Compatible Products

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ESI WiFi Hub

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