Product: Rinnai RUR199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation
Brand: Rinnai
Color: Indoor Installation
Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
Optimal Water Pressure: Up to 11 GPM hot water flow rate for a powerful, constant stream
Instant Heating: ThermaCirc360 technology provides faster hot water with a built-in recirculation pump, timer and thermal bypass valve - ideal for homes without a dedicated return line
Guaranteed to Last: 15-, 5-, and 1-year residential for heat exchanger, labor, and parts, respectively. Wifi monitoring.

Search query: 50 gallon water heater
Relevance: Substitute