Since Rinnai’s establishment in 1920 as a manufacturer of gas appliances, the company has held its corporate mission the goal of using heat energy to provide society with comfortable lifestyles. With this mission in mind, the company has developed, manufactured, and sold a wide variety of products in its role as a comprehensive heat energy /gas solutions provider. Rinnai practices in-house production of the manufacturing facilities used to produce their products, thus achieving excellent precision in the manufacturing process. The entire Rinnai Group works together, and strives to ensure that zero defects and product quality are achieved, so as to provide customers with high quality products. Through the years, Rinnai has repeatedly taken on new challenges and provided technological innovations that achieved the best energy mix, subsequently providing optimal and comfortable lifestyles to the people of the world, regardless of their living environment. This has led Rinnai to become a leading provider of heat-energy appliances on a global scale.