Defroster control for evaporator of refrigerator or heat pump - utilises increase in weight resulting from ice formed to trigger and terminate process
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Heating and air conditioning element for rooms - has heat pump and heat exchanger with additional water heater
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Heating and air conditioning plant for rooms - has heat pump with heat exchangers outside and inside room
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Central heating system with heat pump - is combined with heat storage with compressor in lagged room
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Solar heat collector for incorporating into roof - comprises absorber panels on lagging fitted between rafters
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Evaporator unit for heat pump - has automatically driven air blocking film closed over evaporator during deicing
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Collecting tank for waste water heat recovery - has chambers connected by syphon for dealing with sudden flow surges
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Central heating unit partially utilising solar energy - has additional heat transfer medium circulating system with boiler in heat storage tank
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Air humidity reducing plant for swimming pool building - has heat pump system with evaporating and condensing heat exchangers
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Water reservoir in central heating plant - has deaerating device connected to tank and to supply line
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Central heating installation with heat storage system - has additional valve controlled small heater which can be switched in and out of circulation circuit
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Defrosting device for heat pump in form of cold compressor - has heating pipes with circulating liquid heated by energy abstracted from central heating circulation
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STORAGE TANK FOR CENTRAL HEATING SYSTEMS
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CENTRAL HEATING SYSTEM
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Air conditioning plant with universal tank - has five compression refrigerators of like type, with condensers connected to tank
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Adaptable-fuel hot-water central heating - with tank usable either as liquid fuel store or for heat-carrier liquid
