Rinnai is a Japanese company known for manufacturing high-quality heating and hot water systems. Founded in 1920, it specializes in products like tankless water heaters, boilers, and heating appliances. Rinnai is recognized for its energy-efficient solutions that provide consistent hot water while reducing energy consumption. The company operates globally, with a strong presence in markets such as North America, Australia, and Europe. Rinnai's commitment to innovation and sustainability has made it a leader in the industry, offering reliable products that cater to both residential and commercial needs.