{"product_id":"smart-radiator-valve-2-pack-ventorix","title":"SONOFF TRVZB Smart Radiator Valve 2-Pack","description":"\u003cp\u003eA pair of SONOFF TRVZB Zigbee smart radiator valves for room-by-room temperature control and heating schedules.\u003c\/p\u003e\u003csection id=\"ventorix-fitting-guide\"\u003e\u003ch2\u003eRadiator-valve compatibility \u0026amp; setup\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eModel\u003c\/th\u003e\n\u003ctd\u003eSONOFF TRVZB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eConnection\u003c\/th\u003e\n\u003ctd\u003eM30 × 1.5 mm. Other valve types may need a compatible adapter; check the official adapter guide.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePower\u003c\/th\u003e\n\u003ctd\u003e3 × 1.5V LR6 alkaline AA batteries per valve. Batteries are not included.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eConnectivity\u003c\/th\u003e\n\u003ctd\u003eZigbee 3.0. A compatible Zigbee gateway is required for connected control; this is not a direct WiFi device.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSize\u003c\/th\u003e\n\u003ctd\u003e59.4 × 59.4 × 95 mm; check available space around your radiator valve.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePack contents\u003c\/th\u003e\n\u003ctd\u003eTwo TRVZB valve heads. Gateway not included.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCheck your existing valve before ordering\u003c\/h3\u003e\n\u003cp\u003eThe smart head replaces a compatible thermostatic radiator-valve head. Check the valve body, thread and any required adapter; a photo of the old head alone may not identify the connection. Do not remove the plumbed valve body or loosen pipework.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/sonoff.tech\/en-us\/blogs\/news\/adapter-selection-guide\" target=\"_blank\" rel=\"noopener\"\u003eOpen SONOFF’s illustrated valve-adapter selection guide\u003c\/a\u003e · \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0742\/9963\/8001\/files\/SONOFF_TRV-Compatibility-Guide-20241202.pdf?v=1749719600\" target=\"_blank\" rel=\"noopener\"\u003eDownload the valve compatibility chart (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eInstallation, calibration and pairing\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eCheck the correct adapter and install fresh batteries according to the manual.\u003c\/li\u003e\n\u003cli\u003eFollow the manufacturer’s mounting and initial calibration sequence before pairing.\u003c\/li\u003e\n\u003cli\u003eAdd the valve through your compatible Zigbee gateway. App and voice-control functions depend on the gateway.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0742\/9963\/8001\/files\/User_Manual_TRVZB_EN_V1.0.pdf?v=1765970519\" target=\"_blank\" rel=\"noopener\"\u003eOpen the official SONOFF TRVZB manual with installation and display diagrams (PDF)\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eA radiator head controls flow through its radiator; it does not by itself replace boiler controls. Ask an installer if you are unsure about your valve type.\u003c\/p\u003e\u003c\/section\u003e\u003cp\u003eResults depend on your home, existing heating or glazing, fitting and use. No fixed energy-bill saving is guaranteed.\u003c\/p\u003e\u003ch3\u003eDelivery \u0026amp; sizing help\u003c\/h3\u003e\u003cp\u003eFree UK shipping. Delivery typically takes 5–10 working days after dispatch. \u003ca href=\"\/pages\/contact\"\u003eAsk us about suitability before ordering\u003c\/a\u003e, or read our \u003ca href=\"\/pages\/shipping-delivery\"\u003edelivery information\u003c\/a\u003e and \u003ca href=\"\/pages\/returns-refunds\"\u003ereturns process\u003c\/a\u003e.\u003c\/p\u003e","brand":"Ventorix Ltd","offers":[{"title":"Default Title","offer_id":59297007632732,"sku":null,"price":54.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1016\/0635\/9388\/files\/ChatGPTImageSep28_2026_12_37_35AM.png?v=1790539572","url":"https:\/\/ventorix.co.uk\/products\/smart-radiator-valve-2-pack-ventorix","provider":"Ventorix Ltd","version":"1.0","type":"link"}