Warm water is circulated from the boiler to the electrically switched zone valves this is for all radiators and underfloor heating. When the room stat calls for heat the water then passes through the zone valves and then into the manifold where the water is circulated through continuous lengths of plastic pipe incased in the floor, which is run at a lower temperature (typically 50°C) whereas radiators are (70°C).
The Extension kits are designed to provide a solution for underfloor heating to single zone extensions + conservatories with a proposed concrete or sand and cement screed floor area up to 40m2, the manifold setup provides excellent water temperature control, blending the hot water from your heating system down to the safe temperatures used in warm water underfloor heating systems.
Our kits include the electrical controls and valves that enable your warm water underfloor system to operate independently from your existing heating system, in line with current building regulation part L.
Perfect for use with a renewable heat source, a carefully designed underfloor heating system offers high efficiency, and maximum cosiness from the ground up.
Hot water delivered to the underfloor heating manifold from the heat source is blended until the correct temperature is reached. In most boiler-fed systems this will be between 40˚C and 55˚C but in a heat pump system can be as low as 30˚C, increasing the efficiency of the heat pump. Ramki will always take into account the heat source when designing a system and specify the flow temperature needed for each room to maintain comfort levels.