10 Best Rinnai Tankless 2026 in the United States

The Rinnai RXP199iN is a versatile tankless water heater suitable for both indoor and outdoor installations, thanks to its adaptable Versa Vent system. With the capacity to deliver up to 11.1 gallons per minute, it can efficiently supply hot water to multiple fixtures simultaneously, making it ideal for larger households or small businesses. Powered by natural gas or propane, this model offers flexibility in fuel options, and its high energy efficiency of 98% helps minimize utility costs.

The Rinnai RX180iN is a versatile tankless water heater that works with either natural gas or propane, giving you flexibility depending on your fuel source. It delivers a strong flow rate of up to 10 gallons per minute, which means it can handle hot water for multiple fixtures at once, like showers and taps, making it suitable for medium to larger homes. Its energy efficiency is excellent, with a UEF of 0.98, helping to reduce energy bills compared to traditional water heaters.

The Rinnai RXP160iN is a versatile tankless water heater that works with either natural gas or propane, making it a good fit for many homes. It delivers a solid flow rate of up to 9 gallons per minute, which means it can supply hot water to around six fixtures at once—great for medium to larger households. Its energy efficiency is high, with a UEF rating of 0.97, meaning it uses fuel very effectively to keep your energy bills lower and reduce waste.