EPH CP4i OpenTherm WiFi Smart Programmable Room Thermostat

The EPH CP4i OpenTherm WiFi Smart Room Thermostat is a next-generation heating control solution combining smart WiFi connectivity with OpenTherm boiler modulation. Designed for modern homes, it allows full remote control via smartphone while delivering highly efficient, modulating boiler operation.

Key Features

• OpenTherm® compatible – enables modulating boiler control for increased efficiency and reduced fuel consumption.
• WiFi connectivity – control your heating remotely using the EPH Connect app.
• Programmable schedules – 7-day, 5/2-day or 24-hour heating programmes.
• Smart app control – adjust temperature, schedules and modes from anywhere.
• Energy-saving algorithms to reduce boiler cycling and optimise comfort.
• Manual override & boost mode without disrupting programmed schedules.
• Frost protection to safeguard your home during cold conditions.

Typical Applications

• Domestic central heating systems
• OpenTherm-compatible combi and system boilers
• Smart heating upgrades and boiler replacements
• Homeowners seeking remote heating control

What’s Included

• EPH CP4i WiFi smart room thermostat
• OpenTherm wireless receiver unit
• Mounting hardware
• User guide and installation instructions

Technical Specifications

The CP4i offers advanced smart heating control while maintaining simplicity, making it ideal for users who want efficiency, flexibility, and full remote access.