Profile: UFH Supply specializes in warm water underfloor heating equipment & installations. We also supply a range of products from manifolds, controls, tools, pipes and insulation. The automatic air valve is part of our underfloor heating manifold system. This valve automatically removes unwanted trapped air from the underfloor heating system. Our dualmix is generally used in underfloor heating systems in order to keep the water temperature at a preset level. It is also used for supplying underfloor heating systems with power of up to 20 KW. Our PRT-NTS is our low voltage, programmable digital room thermostat, ideal for conventional or combi boiler systems. Its temperature ranges from 05-35°C.