Abstract: An apparatus for commissioning and balancing a central heating system of the type having a boiler (7) for heating water and a pump (1) for pumping the water through a plurality of radiators (21) interconnected by pipes (22). The apparatus comprises a plurality of pairs of temperature probes (9, 10) with a first probe (19) of each pair mountable on a flow pipe (24) and a second probe (10) of each pair mountable on the return pipe (25) of a plurality of radiators (21). A control unit is provided for receiving and outputting temperature information from the temperature probes (9, 10). Means (31) is provided for transmitting the temperature information recorded by each probe (9, 10) to the control unit to allow an operator to monitor the temperature drop across each pair of temperature probes (9, 10).

Abstract: A thermal store system for a water heating system comprising a primary thermal store containing a primary volume of water adapted to be heated by a primary heating means, said primary thermal store being in thermal communication with a central heating supply flow and a central heating return flow, a secondary water heat exchanger in thermal communication with the primary volume of water, the secondary water heat exchanger having a water feed flow and a water outlet flow for supplying hot water, at least one of said central heating return flow and/or said water feed flow being in thermal communication with at least one further thermal store, upstream of said primary thermal store, said at least one further thermal store containing a medium adapted to be heated by at least one supplementary heating means.

Abstract: A heating system comprising at least one temperature sensing device in the form of a wireless transponder. Preferably the temperature sensing device comprises an RFID transponder which may take the form of a substantially planar patch. Preferably said at least one temperature sensing device is arranged for communication with at least one communications relay node via a wireless link. In use, the or each temperature sensing device may send to the or each relay node information indicating the temperature measured by the sensor and, preferably, an identifier that uniquely identifies the respective temperature sensor.