Maximum Performance That Lasts Longer
Unsurpassed first-hour delivery and efficient recovery keep pace with the demands of any industry. Plus, the Rinnai CU199 tankless unit eliminates thermal stress on the tank, lengthening the life of the unit and the ability to consistently produce more hot water than a traditional tank.
Unsurpassed Warranty
2x the warranty of most tanks. Rinnai offers a 6-years warranty on the tank, and 8 years on the heat exchanger and 5-years warranty on all parts and components.
Reliability You Can Count On
Every Rinnai system is individually tested for quality before shipping. Unlike many competitors, Rinnai makes the majority of our key components, allowing for consistent control of quality. That’s why more consumers and businesses choose Rinnai over any other tankless brand.
Ideal for Planned or Emergency Install
With an expert install from our Rinnai PROs, Demand Duo® systems install like a traditional tank, but are 20% lighter. Also, all parts are replaceable, creating hassle-free maintenance and care.
Application Engineering Center of Excellence
Our team of application engineers is available to provide quotes, size your system and provide designs for your specific project — all at no charge and backed by our 100% system sizing guarantee.