Rinnai RUCS75iN Natural Gas Tankless Water Heater

Upgrade your home with the Rinnai RUCS75iN Tankless Hot Water Heater, a natural gas-powered system designed for energy efficiency and endless hot water. This compact indoor unit delivers up to 7.5 GPM of continuous hot water, ensuring no shortage during peak usage. Ideal for multi-appliance households, it efficiently supports up to six fixtures simultaneously without the waste of a traditional tank system.

Engineered for durability and performance, the RUCS75iN features flexible venting options, including PVC/CPVC compatibility with the Ubbink adaptor, making installation hassle-free. Backed by a 12-year heat exchanger warranty, 5-year parts warranty, and 1-year labor warranty, Rinnai guarantees long-term reliability. For optimal safety and efficiency, professional installation is strongly recommended—visit the Find a Rinnai PRO page to locate certified technicians in your area.