Description
EPH – CP4D OpenTherm RF Thermostat
Programmable Wireless Heating Control
The EPH CP4D OpenTherm Programmable RF Thermostat combines modern design
with intuitive control, offering smooth temperature adjustment via a simple handwheel.
Designed for efficiency, comfort, and compatibility with modern boiler systems.

Key Features
- Intuitive Handwheel Control – Quick, smooth temperature adjustment
- Large Clear Display – Easy-to-read screen for precise control
- OpenTherm Modulation – Optimises boiler performance and energy efficiency
- Wireless RF Communication – Flexible installation without hard wiring
- Boiler Plus Compliant – Meets current UK energy efficiency regulations
Technical Specifications
| Product Type | Programmable RF Thermostat |
| Control Method | Handwheel & Digital Display |
| Communication | Wireless RF |
| Boiler Compatibility | OpenTherm Compatible Boilers |
| Compliance | Boiler Plus (UK) |

Ideal Applications
Ideal for modern domestic heating systems,
the CP4D is suitable for homes requiring reliable wireless control,
OpenTherm efficiency, and simple day-to-day operation.
Smart Control. Efficient Heating.
Choose the EPH CP4D OpenTherm Programmable RF Thermostat for intuitive control,
improved efficiency, and modern heating comfort you can rely on.
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