Rinnai CX Series 11 GPM Indoor Tankless Water Heater with Built-In Pump – Natural Gas (CXP199IN)

Experience endless hot water and superior efficiency with the Rinnai CX Series 11 GPM Indoor Tankless Water Heater with Built-In Pump (CXP199IN).
Engineered for performance and convenience, this SENSEI® CXP model delivers consistent hot water for large households or light commercial use. Featuring Smart-Sense™ adaptive gas technology, Smart-Connect™ Bluetooth® compatibility, and Smart-Circ™ recirculation capability, the CX Series combines power and innovation in one sleek, compact design.

Enjoy peace of mind with Rinnai’s high UEF of 0.98, a 15-year heat exchanger warranty, and 199,000 BTUs of maximum heating output — ensuring energy efficiency and long-term reliability.

Key Features:

• High Efficiency: 11 GPM flow rate with UEF 0.98 for superior energy savings.
• Powerful Output: Up to 199,000 BTUs for whole-home or commercial use.
• Smart-Sense™ Technology: Adaptive gas valve adjusts automatically for NG or LP.
• Smart-Connect™ Ready: Connects via Bluetooth® to your phone or tablet for remote monitoring.
• Smart-Circ™ Compatible: Enables recirculation with built-in pump or optional kit.
• Cascade Capability: Connect up to 24 units for a single, unified hot water system.
• Adjustable Temperature: Integrated control up to 185°F.
• Field Convertible: Easily converts from natural gas to propane—no kit needed.
• Flexible Venting: Supports 2”/4” or 3”/5” concentric venting or PVC up to 75 ft.
• Durable Design: Stainless steel primary heat exchanger for long-lasting reliability.
• Warranty Protection: 15-year heat exchanger, 5-year parts, 1-year labor.
  

What’s Included

• Rinnai SENSEI® CXP Water Heater (CXP199IN)
• Wall Mounting Bracket
• (4) Self-Tapping Screws (4.2 x 25mm)
• Gas Conversion Label (Propane)
• (2) Vent Screens
• (2) Vent Screws
• Installation and Operation Manual
• Cascade Cable Assembly

Specifications

Care & Maintenance Instructions

• Install only with certified gas and venting systems by a licensed professional.
• Flush the heat exchanger annually to prevent scale buildup and maintain peak efficiency.
• Clean air intake and vent screens regularly.
• Check connections and valves for leaks during routine maintenance.
• Use original Rinnai replacement parts to preserve warranty coverage.