The space heater panels are linked into a parallel setting by standard valve bodies. Inlet is to one panel (A) via one valve body (3) and outlet is from the other panel (B) via a second valve body (4). The flow control is via one valve (7) in a third valve body. The valve bodies are fitted with different inserts to provide the required flow control. The valve bodies provide a mechanical coupling between the panels, with the flow connections blanked off where purely mechanical support is required. The inlet and outlet are at one bottom corner of the unit eliminating riser pipes.
