{"product_id":"underfloor-heating-blending-valve-with-grundfos-upm3-flex-pump","title":"Underfloor Heating Blending Valve With Grundfos UPM3 Flex Pump","description":"\u003ch1\u003e\u003cspan\u003eUNDERFLOOR HEATING CONTROL PACK WITH GRUNDFOS UPM3 FLEX PUMP\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for heating loads of up to 15kW, this compact, lightweight control pack is equipped with a Grundfos circulation pump for direct manifold connection. Supplied fully assembled in a left-hand configuration, it features G1 male swivel connections with flat seals as standard.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe practical design and swivel union connections allow the unit to be fitted directly to the manifold with minimal installation effort. As no additional support brackets are required, there is no need for extra drilling or fixing points, helping to simplify the installation process.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe integrated thermostatic mixing valve allows the underfloor heating flow temperature to be adjusted within a range of 35–65°C. The control pack is compatible with a wide variety of heat sources, including oil and gas boilers, wood-burning stoves, solar heating systems, and ground-source or air-source heat pumps.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEach assembly is supplied with a thermostatic mixing valve, an A-rated Grundfos UPM3 FLEX circulation pump, a manifold adapter, and the required sealing components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHOW DOES THE SYSTEM WORK?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eIn a water-based underfloor heating system, the circulation pump and thermostatic mixing valve work together to provide controlled water flow and maintain suitable operating temperatures. Each component performs a different but equally important function.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCIRCULATION PUMP\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e1. CONSISTENT HEAT DISTRIBUTION\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBy maintaining water circulation through the heating loops, the pump helps distribute heat across the floor more evenly. This supports a comfortable indoor environment and reduces the likelihood of uneven heating between different areas.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e2. CONTINUOUS WATER CIRCULATION\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe pump drives water around the underfloor heating circuit, moving warm water from the heating source, such as a boiler or heat pump, through the pipework installed beneath the floor. The cooled water then returns to the circuit to be reheated and recirculated.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTHERMOSTATIC MIXING VALVE\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e1. PRECISE FLOW TEMPERATURE REGULATION\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe mixing valve controls the temperature of the water entering the underfloor heating circuits. It achieves this by blending hot water from the heat source with cooler water returning from the floor heating system, producing a suitable flow temperature for the installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e2. PROTECTION AGAINST EXCESSIVE TEMPERATURES\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnderfloor heating generally operates at lower water temperatures than many heat sources can produce. The mixing valve helps reduce the temperature of the supply water to an appropriate level, limiting the risk of floor overheating and helping maintain comfortable room conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWORKING TOGETHER FOR EFFICIENT HEATING\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe circulation pump and mixing valve form an important part of an effective water-based underfloor heating system. The pump maintains water movement through the circuits, while the mixing valve regulates the supply temperature to suit the system's requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen correctly selected, installed, and maintained, these components help support reliable operation, consistent heat distribution, and efficient energy use. Appropriate system sizing and temperature settings are essential for achieving comfortable heating performance while protecting the flooring and other system components.\u003c\/span\u003e\u003c\/p\u003e","brand":"Happy Waves","offers":[{"title":"Default Title","offer_id":55688372781398,"sku":"HW-PUMPGF-PK","price":185.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/8310\/4598\/files\/grundfos-upm3-flex-as-thermostatic-mixing-valves-the-under-floor-heating-company.jpg?v=1791655238","url":"https:\/\/happywaves.co.uk\/products\/underfloor-heating-blending-valve-with-grundfos-upm3-flex-pump","provider":"Happy Waves","version":"1.0","type":"link"}