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The prevention of global warming has been a primary concern of the automotive industry for some time. The Toyota Environmental Challenge 2050 describes six individual initiatives to help build a future in which people and vehicles can coexist in harmony. These initiatives aim to eliminate CO2 emissions in vehicle manufacturing by 2050, as well as reduce CO2 emissions while driving. Heating-related processes were identified as being responsible for around 50% of plant CO2 emissions, the most significant single factor. Consequently, as the first step toward achieving zero plant CO2 emissions, the following two technologies were developed with the aim of reducing CO2 emitted in heating processes: (1) a hydrogen burner that generates CO2-free heat and (2) vacuum-insulated furnace walls that enable energy-saving and smart use of heat. These two items were combined into a heat management system with the aim of reducing CO2 emissions by 80%.