Abstract: Sound-attenuating housing (10) for a heat pump (34) comprises a base chassis (11), a first sub-chassis (17) and a second sub-chassis (19). The base chassis (11) is surrounded by upstanding walls (12-15) and has a top (16) adapted to engage with the upstanding walls (12-15), thereby to form an enclosure for the heat pump (34). The first sub-chassis (17) is provided within the enclosure, and is mounted on the base chassis (11) via-anti-vibration mounts (18). The second subchassis (19) is provided within the enclosure, and is mounted on the first sub-chassis (17) via anti-vibration mounts (21). The second sub-chassis (19) forms a mounting surface for a heat pump compressor (25), whilst the first sub-chassis (17) forms a mounting surface for other components of the heat pump (34).

Abstract: A radiator fin (10) has front (11) and rear (12) faces, and is defined by upper (15) and lower (16) edges and opposed side edges (17, 18). The fin (10) has first and second apertures (13, 14), each passing through the front (11) and rear (12) faces and adapted to receive and contact a conductive element (24, 25) for the transfer of heat to the fin (10). The centre of the first aperture (13) is offset relative to the centre of the second aperture (14), such that said first (13) and second aperture (14) centres are not vertically aligned when the fin (10) is installed. The fin (10) is adapted for mounting adjacent a plurality of like fins (10) to form a heat exchange coil (30) for use in a radiator (40).

Abstract: A modified heat pump (12) comprises a closed circuit around which a refrigerant fluid is circulated, a plenum chamber (13) and an auxiliary heat exchanger (16). The closed circuit has a compressor, a condenser, an expansion valve and an evaporator. The evaporator is located within the plenum chamber (13). The plenum chamber (13) also has an inlet (14) adapted to receive a fluid heat source medium and direct it over the evaporator, thereby to extract heat from said medium, and an outlet (15) adapted to receive cooled medium expelled from the plenum chamber (13). The auxiliary heat exchanger (16) is located between the inlet (14) and the evaporator, and is adapted to warm said medium prior to it passing over the evaporator.

Abstract: A fan convector heating unit (10) has a housing (11) having an air duct (12) extending therethrough. A heat exchanger (21) is disposed within the air duct (12) and is adapted for fluid connection to a water heating system, when the heating unit (10) is installed. A fan (18) is disposed within the housing (11) and is arranged to cause air to flow through the air duct (12) and over the heat exchanger (21). Control means are provided to activate and deactivate the fan (18) upon the water within the heat exchanger (21) reaching pre-determined activation and deactivation temperatures. Both the activation and deactivation temperatures are interchangeably variable between standard and low energy activation and deactivation temperatures.

Abstract: Flame-effect heating apparatus comprises a housing with walls defining an air duct extending therethrough. Simulated fuel is supported by the housing, externally of the duct, and at least one flame-effect generator is disposed in the duct. A light source is provided in the housing to illuminate both the simulated fuel and the flame-effect generator. A mirror is supported by the housing so that light reflected by the flame-effect generator is incident thereon. A wall of the housing which defines the air duct, is formed as a viewing screen on which light reflected by the mirror falls, the viewing screen being positioned higher than the simulated fuel. An electric fan causes air to flow through the air duct, so causing operation of the flame-effect generator, and a heat exchanger disposed in the duct warms air passing thereover.

Abstract: Flame-effect heating apparatus comprises a housing with walls defining an air duct extending therethrough. Simulated fuel is supported by the housing, externally of the duct, and at least one flame-effect generator is disposed in the duct. A light source is provided in the housing to illuminate both the simulated fuel and the flame-effect generator. A mirror is supported by the housing so that light reflected by the flame-effect generator is incident thereon. A wall of the housing which defines the air duct, is formed as a viewing screen on which light reflected by the mirror falls, the viewing screen being positioned higher than the simulated fuel. An electric fan causes air to flow through the air duct, so causing operation of the flame-effect generator, and a heat exchanger disposed in the duct warms air passing thereover.