Chofu Seisakusho Co., Ltd., together with its subsidiaries, manufactures and sells residential appliances under the Chofu and Sunpot brands in Japan. The company offers water heaters comprising oil water heaters, oil bath boilers, gas water heaters, gas bath boilers, electric water heaters, and EcoCute heat pump water heaters; air conditioning equipment consisting of oil stoves, gas stoves, hot water heating systems, geothermal heat pumps, and snow melting systems; and system equipment, such as system bathrooms, artificial marble bathtubs, and system kitchens. It also provides solar equipment, including solar water heaters, solar-powered hot water systems, solar underfloor ventilation fans, and solar photovoltaic and solar thermal hybrid modules; kitchen-related products; agricultural equipment; and centralized control systems. In addition, the company is involved in engineering services, such as proposing, designing, and constructing energy-efficient thermal energy supply systems; maintenance of central heating systems; installation of oil and gas equipment; maintenance of various systems; and software development and sales. It exports its products to Europe, North America, and Oceania. Chofu Seisakusho Co., Ltd. was incorporated in 1950 and is headquartered in Shimonoseki, Japan.