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EPH CP4D OpenTherm Wireless Programmable Room Thermostat with Dial

The EPH CP4D OpenTherm Wireless Programmable Room Thermostat combines advanced OpenTherm boiler modulation with simple dial control and wireless RF communication. Designed for modern heating systems, it delivers precise temperature control, improved efficiency, and reduced energy consumption.

Key Features

  • OpenTherm® compatible – enables modulating boiler control for improved efficiency.
  • Wireless RF communication between thermostat and receiver for easy installation.
  • Simple rotary dial control for fast and intuitive temperature adjustment.
  • Programmable scheduling – 7-day, 5/2-day, or 24-hour modes.
  • Energy-saving algorithms reduce boiler cycling and fuel usage.
  • Manual override & boost function without changing the programmed schedule.
  • Frost protection for safe operation during low temperatures.

Typical Applications

  • Domestic central heating systems
  • OpenTherm-compatible combi and system boilers
  • Heating upgrades for improved energy efficiency
  • Wireless thermostat replacements

What’s Included

  • EPH CP4D OpenTherm wireless thermostat with dial
  • Wireless OpenTherm receiver unit
  • Mounting hardware and installation instructions

Technical Specifications

Specification Value
Control Type Wireless RF programmable thermostat with rotary dial
Boiler Control OpenTherm® modulation
Programming 7-day / 5-2 / 24-hour schedules
Temperature Range 5 – 35 °C
Thermostat Power Battery powered
Receiver Power 230V AC
Communication Wireless RF
Frost Protection Yes
Compliance Boiler Plus compliant

The CP4D OpenTherm version is ideal for homeowners looking to maximise boiler efficiency while retaining simple, user-friendly controls.

£85.00
£85.00
Sale Sold out
Tax included.
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