{"product_id":"eph-controls-cp4-opentherm-wireless-programmable-room-thermostat","title":"EPH Controls CP4 (COMBIPACK4) OpenTherm® Wireless Programmable RF Room Thermostat \u0026 Receiver | Boiler Plus Compliant","description":"\u003ch3 class=\"PDq2pG_selectionAnchorContainer\"\u003entelligent Heating Control for Maximum Comfort \u0026amp; Efficiency\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eEPH Controls CP4 (COMBIPACK4)\u003c\/strong\u003e is a premium \u003cstrong\u003ewireless programmable room thermostat and receiver\u003c\/strong\u003edesigned to deliver precise heating control for domestic heating systems. Featuring \u003cstrong\u003eOpenTherm® communication\u003c\/strong\u003e, \u003cstrong\u003eTPI technology\u003c\/strong\u003e, and \u003cstrong\u003eOptimum Start\u003c\/strong\u003e, the CP4 helps improve boiler efficiency while reducing unnecessary energy consumption. It supports a single heating zone and offers both OpenTherm® and traditional On\/Off control, making it suitable for a wide range of modern gas boilers. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWhether you're upgrading an existing thermostat or fitting a new heating system, the EPH CP4 provides a reliable, user-friendly solution that is fully \u003cstrong\u003eBoiler Plus compliant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cp\u003e✔ OpenTherm® Compatible\u003cbr\u003e✔ Wireless RF Thermostat \u0026amp; Receiver\u003cbr\u003e✔ Suitable for 1 Heating Zone\u003cbr\u003e✔ Boiler Plus Compliant\u003cbr\u003e✔ Optimum Start Learning Function\u003cbr\u003e✔ TPI (Time Proportional \u0026amp; Integral) Control\u003cbr\u003e✔ On\/Off \u0026amp; OpenTherm® Control Modes\u003cbr\u003e✔ Up to 6 Time \u0026amp; Temperature Settings Per Day\u003cbr\u003e✔ Frost Protection Function\u003cbr\u003e✔ Holiday Mode\u003cbr\u003e✔ Large Easy-to-Read LCD Display\u003cbr\u003e✔ Simple Installer Setup\u003cbr\u003e✔ 5 Year Manufacturer Warranty\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eImprove boiler efficiency with OpenTherm® modulation\u003c\/li\u003e\n\u003cli\u003eReduce heating costs through intelligent temperature control\u003c\/li\u003e\n\u003cli\u003eEasy wireless installation with no thermostat wiring required\u003c\/li\u003e\n\u003cli\u003eComfortable, consistent room temperatures\u003c\/li\u003e\n\u003cli\u003eSuitable for combi, system and regular boiler installations (where compatible)\u003c\/li\u003e\n\u003cli\u003eModern design that complements any home\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specification\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eEPH Controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eCP4 (COMBIPACK4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eWireless Programmable Room Thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eRF Wireless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoiler Communication\u003c\/td\u003e\n\u003ctd\u003eOpenTherm® \u0026amp; On\/Off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating Zones\u003c\/td\u003e\n\u003ctd\u003e1 Zone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgramming\u003c\/td\u003e\n\u003ctd\u003eUp to 6 periods per day\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Modes\u003c\/td\u003e\n\u003ctd\u003eAuto, Manual \u0026amp; Off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrost Protection\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimum Start\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTPI Control\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoiler Plus Compliant\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e5 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003ePlease check boiler compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEPH CP4 Wireless Thermostat\u003c\/li\u003e\n\u003cli\u003eRF Receiver\u003c\/li\u003e\n\u003cli\u003eInstallation Instructions\u003c\/li\u003e\n\u003cli\u003eMounting Accessories\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EPH","offers":[{"title":"Default Title","offer_id":58577454924160,"sku":null,"price":66.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/1449\/7816\/files\/ChatGPTImageJul29_2026at09_07_10PM.png?v=1785355648","url":"https:\/\/allgasltd.com\/products\/eph-controls-cp4-opentherm-wireless-programmable-room-thermostat","provider":"All Gas Wakefield Ltd","version":"1.0","type":"link"}