The Rinnai SENSEI RX199iN is a high-efficiency condensing tankless water heater designed for residential use. It provides on-demand hot water with a maximum flow rate of 11.1 GPM and supports indoor or outdoor installation. The unit features advanced Smart Sense technology for automatic fuel adaptation and is suitable for homes with multiple bathrooms.

• 199,000 BTU/h max input (15,000 BTU/h min)
• 0.98 Uniform Energy Factor (UEF)
• 0.13 - 11.1 GPM flow rate
• 3/4 in. NPT gas, cold inlet, hot outlet connections
• Indoor or outdoor installation (Versa-Vent accessory for outdoor)
• 55 lb weight; 18.5 in. W x 30.11 in. H x 11.4 in. D
• Natural gas or propane (Smart Sense adaptive valve, no conversion kit)
• ENERGY STAR certified, Ultra Low NOx, Wi-Fi capable