Meet the Rinnai RE199eN—an outdoor natural gas tankless water heater designed for reliable, on-demand hot water in a compact package. It’s perfect for homes of all sizes, fitting outside or into tight spots, so your showers stay luxurious while your space stays uncluttered.

Key Features & Design

• Constant hot water on demand: Up to 9.8 GPM flow, ideal for busy households or back-to-back showers.
• High heating power: 199,000 BTUs of heating capacity for dependable performance.
• Compact exterior-ready design: About the size of a small suitcase—easy to install on exterior walls or in tight remodels.
• Efficient operation: UEF 0.82, runs only when you need hot water to help cut energy bills without sacrificing comfort.
• Greener by design: Complies with Ultra-Low NOx emissions for a cleaner home.
• Smart control: Includes Wi-Fi control to turn it on or off from anywhere (where Wi-Fi is available).
• Recirculation-ready: Adapts to your needs with an optional recirculation pump to bring hot water faster and reduce water waste.
• Flexible flow range: From 0.13 to 9.8 GPM to cover everything from handwashing to whole-house use.
• Outdoor installation: Easy to mount on exterior walls, ideal for remodels or spaces without indoor closet real estate.
• Trusted performance: Rinnai delivers tested durability and value homeowners rely on nationwide.

Shipping and availability: Your Rinnai 9.8 GPM Outdoor Natural Gas Tankless Water Heater ships quickly and includes reliable support. Free USA Shipping. The unit will be packed and shipped within 1–3 business days and delivered between 5–10 business days.