EPH Hot Water Priority Kit
EPH Hot Water Priority Kit
Designed to integrate with OpenTherm® technology, this EPH Hot Water Priority pack includes a CP4 RF Room Thermostat, CP4-HW Hot Water Thermostat, two 22mm 2-Port Motorised Valves, and a wiring centre.
By intelligently managing heating and hot water demand, it enhances system efficiency while reducing strain on the boiler. The pack enables lower flow and return temperatures, optimizing energy use and improving the performance of the heating circuit.
Maintaining these lower temperatures ensures the boiler operates within its condensing range, maximising efficiency and reducing energy consumption.


Key features and benefits
- 2 years warranty as standard or warranty match of 12 or 18 years when ordered with your ATAG boiler
- Wireless connection via receivers
- Easy to install with pre-paired components
- Maximum fuel efficiency achieved
- Simple to use with clever timing options
- OpenTherm and on/off switching
- Intelligent features including holiday mode protection
- Anti-cycling technology
- Can operate up to 6 separate heating zones
- Pack contains 2 x 2 port motorized valves, controllers, receivers and cylinder NTC cable
- Available in 22mm only

ATAG Boilers
Our range of boilers are designed to work hand in hand with the OneZone smart controller.
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Complete Care
Ask your ATAG installer about the complete care pack, including the ONEZone smart controller, to increase your standard warranty from 12 to 18 years.
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