Meet the Rinnai Sensei RX199iN 11 GPM Residential Indoor Tankless Water Heater with Smart Sense Adaptive Gas Valve. This compact powerhouse serves busy homes with endless hot water on demand, all while trimming energy use and freeing up precious space—so no more fighting over that last hot shower.

Key Features & Design

• 11 GPM capacity for ample on-demand hot water, even during busy mornings or long showers.
• Residential Indoor Tankless Water Heater that fits tight spaces without compromising performance.
• Smart Sense Adaptive Gas Valve works with both natural gas and propane, making installation smarter and more flexible.
• Direct electronic ignition for instant, safe, and dependable operation.
• Wi‑Fi control puts hot water management in the palm of your hand—control, monitor, and optimize from anywhere.
• 2” venting up to 75 feet for flexible installation layouts and clean venting options.
• Temperature range 98°F to 140°F (default 120°F) so you can dial in your comfort precisely.
• Flushing for maintenance is fast and simple to keep your unit running like new for years.
• Versa-Vent™ accessory (optional) makes installation a breeze in any setting.
• Uniform Energy Factor 0.98—an industry-leading efficiency that helps lower utility bills without sacrificing hot water reliability.
• Durability—lasts up to twice as long as tank models, with a 15-year heat exchanger warranty for peace of mind.
• Fuel flexibility—works with natural gas or propane, expanding your installation options.

Your Rinnai Sensei RX199iN 11 GPM Indoor Tankless Water Heater is designed for efficient, on-demand hot water and energy savings. It ships with FREE USA SHIPPING and is typically packed and shipped within 1-3 business days and delivered in 5-10 business days. Manuals and specs sheet are available for reference.