The EPH CP4 (COMBIPACK4) OpenTherm® RF programmable thermostat is a wireless digital room thermostat designed to control one heating zone. Featuring OpenTherm®, Optimum Start, TPI and On/Off control modes, it helps improve boiler efficiency and heating comfort. Boiler Plus compliant and easy to install, it’s ideal for modern combi and OpenTherm compatible heating systems.
The EPH Controls COMBIPACK3 is a non‑programmable RF dial thermostat designed for easy and reliable heating control. Rated at 8A 230Vac, it provides straightforward operation for domestic and commercial heating systems.