- Business
- Rinnai Corp (TSE: 5947) manufactures and sells gas appliances, primarily for residential and commercial applications worldwide. The company produces tankless water heaters, including condensing and hybrid models such as ECO ONE series; gas cooking equipment like stoves, ovens, and ranges; room heaters and bathroom heater/dryers; commercial cooking appliances; and heating, ventilation, air conditioning (HVAC) systems, along with related products such as boilers, rice cookers, and sanitary equipment. Rinnai operates through segments focused on household equipment, commercial equipment, and industrial applications, serving markets in Japan, North America, Europe, Asia, Oceania, the Middle East, and South America via subsidiaries and sales networks in over 20 countries. Founded in 1920 and headquartered in Nagoya, Japan, the company maintains manufacturing facilities in Japan, the United States, Australia, and other locations. Recent developments include the acquisition of Smart Energy Group in Australia in 2024 to expand into solar PV and battery storage; the acquisition of Industrias MASS in Mexico in 2021; the purchase of Brivis Climate Systems in Australia in 2015; and the completed acquisition of Peru-based MT Industrial S.A.C. in October 2025, strengthening its Latin American presence in housing equipment sales.