Example image of eyePlorer eyePlorer map for 'EcoCute': Efficient energy use Heat pump Water heating Ammonia Carbon dioxide Gas Haloalkane Refrigerant Energy conservation Greenhouse gas Ecology Economic system Carnot cycle Ether Ice Jacob Perkins Refrigerator Sulfuric acid Water Air conditioner Fusanosuke Kuhara Hitachi Ltd. Chlorofluorocarbon Thomas Midgley, Jr. Ozone layer Kyoto Protocol Montreal Protocol Vienna Convention for the Protection of the Ozone Layer Gustav Lorentzen (scientist) SINTEF Belgium Brussels Automobile Denso Central Research Institute of Electric Power Industry The Tokyo Electric Power Company Hokkaidō Japan Okinawa Prefecture Prototype Feasibility study Kerosene heater Italy Milan European Union Japanese yen Circulation (fluid dynamics) Seal (mechanical) Heat exchanger Celsius