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The Ultimate in Energy Efficiency with Hi-Tech Comfort Easy installation and PVC venting 3" SCH 40 solid PVC up to 100' Industry's highest energy efficiency rating - 98% Ready Link® Cascade System Optional built-in recirculation system with buffer tank Advanced Eco Navien technology Extended lifecycle utilizing dual stainless steel heat exchangers Advanced remote control - NR-10DU Industry's best warranty! |
With Navien Condensing 98%, you get the best of both worlds: the Best Value and “Ultra Condensing Efficiency,” which offers substantial savings and contributes to a green-friendly environment. Plus, the installation and venting processes are easy, cost effective, and Navien’s products are simply the best in quality and performance.

Ultra Condensing Efficiency
| Navien’s condensing efficiency boasts the industry’s highest rating of 98%. Customers can take advantage of the low annual operating costs and receive the best value and payback, compared with conventional tankless or tank-type water heaters. Navien’s Condensing Tankless offers the highest gallons-per-minute (GPM) when comparing input BTUs. |
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Endless Hot Water Supply
Navien Condensing tankless heaters offer safety and an unlimited amount of hot water supply. Consumers love the endless supply of hot, soothing water!

Space Saving Design
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Navien’s condensing tankless water heater occupies approximately 90% less space than a tank-type water heater. In addition, a Navien mounts on your wall freeing up valuable floor space. |
Advanced Technology
‡@ Enhanced Safety with Dual Microprocessors
Navien’s two microprocessors offer better control and safer operation by continuously cross monitoring each other’s performance to assure proper operation at all times.
These two microprocessors not only control the burner for ideal combustion but also maintain the steady hot water temperature.
‡A Optimal and Stable Combustion with APS and GPS
| APS (Air Pressure Sensor) maximizes combustion efficiency by sensing and controlling the air required for optimal combustion even in high-wind locations and installations with long vent runs. | ![]() |
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GPS (Gas Pressure Sensor) offers stable combustion by sensing gas pressure and controlling the fan speed to maintain optimal combustion, even under a wide range of gas-pressure changes. |
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| ‡B Three-phased, Pre-Mixed Burner Controls flame by pre-mixing optimal ratio of gas and air before combustion, reducing emissions and enhancing heat efficiency. ‡C Leak Detector Built-in leak detector prevents damage to water heater as well as personal property. ‡D Air Intake Filter An air intake filter prevents foreign substances, such as dust or insects, from entering the system, freeing the burner from elements that would normally cause unstable combustion or energy inefficiency. |
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Remote Control (NR-10DU)
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