Rinnai C199IP 9.8 GPM Indoor Commercial Condensing Tankless Water Heater – LP, Ultra Low NOx (199,000 BTU)

Upgrade your commercial hot water system with the Rinnai C199IP 9.8 GPM Indoor Commercial Condensing Tankless Water Heater, engineered for maximum efficiency, reliability, and long-term performance. Designed for demanding commercial environments, this LP-powered unit delivers a continuous supply of hot water while significantly reducing energy consumption and emissions.

With a powerful 199,000 BTU output, Ultra Low NOx emissions, and advanced condensing technology, the C199IP provides superior heating performance with lower operating costs. Ideal for restaurants, hotels, multi-unit facilities, salons, healthcare environments, and any high-demand application.

Built for longevity, compact installation, and easy servicing, the Rinnai C199IP ensures consistent hot water delivery without the need for bulky storage tanks—all while supporting a greener, more energy-efficient operation.

Key Features:

• High Flow Rate – 9.8 GPM for continuous hot water in commercial applications
• Ultra Low NOx Technology for reduced emissions and improved environmental performance
• 199,000 BTU Heating Capacity for powerful and reliable hot water supply
• Indoor Condensing Design for maximum energy efficiency
• Commercial-Rated Durability engineered for heavy, continuous use
• LP Gas Powered for fast heating and optimized fuel economy
• Compact, Space-Saving Construction fits tight utility rooms or mechanical spaces
• Isolation Valves Included for easier servicing and maintenance
• Advanced Safety Protections including temperature control and system diagnostics
• Rinnai Commercial Warranty providing long-term peace of mind
  

What’s Included

• Rinnai C199IP Indoor Commercial Tankless Water Heater (LP)
• Factory-installed Ultra Low NOx System
• Isolation Valve Kit
• Installation & User Manual
• Mounting hardware (as provided by manufacturer)
  

Specifications

Care & Maintenance Instructions

• Descale the unit every 6–12 months, depending on water hardness
• Keep air filters clean and free from debris
• Inspect the venting system annually for blockage or buildup
• Ensure isolation valves are used during servicing to protect the system
• Keep the surrounding area free from dust and moisture
• Have a licensed professional perform annual system diagnostics
• Use only approved Rinnai parts for replacement or service