Rinnai RXP199iN SENSEI 11 GPM 199,000 BTU Indoor Condensing Tankless Water Heater with Built-In Recirculation

Rinnai RXP199iN SENSEI 11 GPM 199,000 BTU Indoor Condensing Tankless Water Heater with Built-In Recirculation

The Rinnai RXP199iN SENSEI is a premium 199,000 BTU indoor condensing tankless water heater engineered for large homes that demand maximum performance. Delivering up to 11 gallons per minute (GPM) and featuring a built-in recirculation pump, this model provides faster hot water delivery, improved efficiency, and superior whole-home comfort.

Why This Is Rinnai’s Flagship Residential Model

• Integrated Recirculation Pump – Reduces hot water wait time
• 199,000 BTU Maximum Input
• Up to 11 GPM Output (varies by temperature rise)
• High-Efficiency Condensing Technology
• Energy Star® Certified
• Advanced safety monitoring & smart diagnostics
• Compact wall-mounted indoor installation

Ideal For:

• 4+ bathroom homes
• Luxury residences
• Large families with heavy simultaneous demand
• Homes with dedicated recirculation return lines
• Replacing high-capacity 75–100 gallon tank systems

Built-In Recirculation Advantage

The RXP199iN includes an integrated recirculation system designed to reduce the time it takes for hot water to reach fixtures. When properly configured with a return line or crossover system, homeowners experience quicker access to hot water and increased overall efficiency.

Performance & Output

With up to 11 GPM of output depending on groundwater temperature, this model is designed to support multiple showers, appliances, and fixtures operating simultaneously. It is engineered for high-demand applications where lower BTU models may fall short.

Condensing Efficiency Explained

Unlike non-condensing tankless units, the RXP199iN uses advanced condensing heat exchanger technology. This allows for PVC venting options and improved thermal efficiency, resulting in lower long-term gas consumption compared to traditional non-condensing systems.

Installation Requirements

• Indoor installation only
• Approved PVC/CPVC venting configurations
• Proper gas line sizing for 199,000 BTU input
• 120V electrical outlet required
• Professional installation strongly recommended

Compare With Other Rinnai Models

• RX160iN – Mid-size condensing unit without built-in recirculation
• RE199iN – Indoor non-condensing alternative
• RE199eN – Outdoor non-condensing version

Why Buy From United Plumbing & Fire Supply?

• Trusted plumbing & HVAC supply serving Los Angeles
• Local pickup available
• Nationwide shipping options
• Competitive pricing
• Knowledgeable support for contractors and homeowners

Frequently Asked Questions

Does the RXP199iN include a built-in recirculation pump?
Yes. This model includes an integrated recirculation pump designed to reduce hot water wait times when configured properly.

Is this unit condensing?
Yes. The RXP199iN uses high-efficiency condensing technology.

Is this enough for a 4 bathroom home?
Yes. With 199,000 BTU and up to 11 GPM output, this model is specifically designed for large, high-demand homes.

Is this natural gas?
Yes. The “iN” configuration is designed for natural gas.

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Available for local pickup in Los Angeles or nationwide shipping. Contact United Plumbing & Fire Supply for availability, pricing, and professional installation guidance.