Enjoy an endless supply of hot water with the SENSEI™ RSC199eN Super High Efficiency Plus condensing tankless water heater from Rinnai. Only the size of a small suitcase, the natural gas RSC199eN model is compact, easy-to-install and perfect for outdoor locations.

The Rinnai Sensei Series with condensing technology offers built-in freeze protection down to -22°F on the indoor units. The unit features an integrated check valve located between the turbofan and the combustion chamber to prevent cold air from entering the venting system and backflow of exhaust in common vent applications. The Fiber Mesh Premix Burner helps to provide even flame distribution for optimal performance for any demand.

In a condensing tankless water heater, such as the RSC199, once you turn on the tap, cold water goes into the tankless heater and the flame is activated. Water is pre-heated as it passes through the primary stainless steel heat exchanger then continues to be heated as it passes through the coils in the secondary heat exchanger, exits the water heater, into your pipes, and up to the fixture calling for the hot water. Depending on the amount of hot water called for, the flame adjusts accordingly to heat more or less water.

Up to twice the lifespan of most tanks

Never run out of hot water

Compact size to fit every space

Benefits of a Tankless Hot Water Heater:

• Endless hot water - Heats water as it goes through the pipes, offering endless hot water for your business
  
  
• Hot water on demand - Once you turn the water on, hot water runs through your pipes and out the faucet! Virtually no time or water is wasted waiting for the water to heat up
  
  
• Highly Efficient - Gallon for gallon, you will spend less money heating your hot water. With a tankless system, the water is heated on demand rather than sitting in a storage tank. A storage tank typically heats the water intermittently throughout the day and night not only when it is needed. This unit is Energy Star Qualified and features an Energy Factor of 0.93 (the closer to 1.0 the better)
  
  
• Long-lasting - Unlike a storage tank in which the water sits in the tank all the time creating sediment and rust, a tankless water heater will last longer

Features

• 97% thermal efficiency, commercial Energy Star certified
• Ultra low NOx compliant
• Approved for high altitude up to 10,200 ft. (3,109 m)
• Integrated temperature controller that provides 98°F to 185°F, no external controller required
• Isolation valves included
• Increase savings with commercial Energy Star certified tankless water heaters that operate more efficiently on-demand to provide an endless supply of hot water
• Wi-Fi ready with optional Rinnai Control-R wireless module (not included)
• Professional installation required

What's Included

• Tankless Water Heater
• Thermal Bypass Valve
• Pressure Relief Valve and Adapter
• Isolation Valve Kit
• Integrated Controller

Specifications

Documents & Files

• Download Specification Manual
• Download Installation Instructions
• Download Energy Guide

Warranty

	15 yrs on Heat Exchanger
	5 Year Warranty on Parts
	1 Year Labor Warranty

Videos

Installation

To connect with a Rinnai-trained installer, you can utilize the Rinnai Dealer Locator by visiting the link: https://www.rinnai.us/find-pro. Alternatively, you can directly reach out to Rinnai's dedicated customer support team via the Toll-Free Number: 1 (800) 621-9419.