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Tankless Water Heaters

Comfort. Quality. Reliability.

Navien America’s Condensing Combi Water Heater

Navien America’s fin-type stainless-steel heat exchanger, stainless steel condensing heat exchanger and premixed burner is what makes this unit so unique.

A domestic water heater and space-heating applications, such as in-floor radiant heating, base-board heating and fan assistance air handler heating application, the Condensing Combination Water Heater from Navien has a BTU input of up to 200,000 to fit to any project.

The Ultimate in Energy Efficiency with Precision Technology

  • Endless hot water supply (2~3 showers at the same time)
  • Ultra condensing efficiency (CAFUE=0.92)
  • Space saving design
  • 3˝SCH 40 PVC venting up to 100´ with a maximum of 6
  • elbows
  • Optimal and stable operation
  • Eco friendly Navien technology
  • Easy installation
  • Best warranty




Where Technology Meets Ecology
Navien America’s Condensing Combi Water Heaters are the ideal solution for customers who need both domestic hot water, as well as a space heating application. Unlike conventional boilers, Navien America’s Combi Water Heater heats water only when needed, making it environmentally sound, as well as cost efficient.

Superb Condensing Efficiency & Easy Installation
What makes Navien America’s Combi Water Heater so unique is that it comes equipped with dual stainless-steel heat exchangers, making it 98% efficient.

Its PVC venting also lowers the cost of installation and simplifies the process significantly. PVC is inexpensive, durable and easy to assemble, but installers and contractors will also appreciate the Combi’s ability to vent up to 100 feet with a maximum of six elbows.

Highest Volume of Water, Cascade System
Navien’s Combi Water Heater is more than capable of supplying hot water instantly and consistently due to the unit’s distinctive technology, including its multi-temperature sensor, water-flow sensor and sensitive auto-burner control. And when combined with Navien’s Condensing 98% Tankless Water Heater, large families can receive ample volumes of water. The best part is: both units run only when needed.

K-Factor Heating
Another feature of the Combi includes its outdoor sensor. This device automatically regulates the unit’s set temperature according to changes in the temperature outdoors, allowing for precise indoor heat regardless of what the weather is doing outside.

Auto Sensing & Adaptive Control, ASA Control System
Materials for all components are tested again and again for long-lasting performance and durability.

Extended Life, Stainless Steel Heat Exchanger
Utilizing stainless-steel for the Combi’s integrated primary and secondary heat exchangers prevents corrosion and ensures a longer life span over copper parts.

Stainless-steel components also maintain consistency, even during long periods of use, and aid in efficiency by capturing as much condensation as possible. Hydronic heating is made possible thanks to the stainless-steel’s capacity to keep temperatures low.

Advanced Safety Operation, Gas-Air Ratio Control
Navien’s Gas-Air Ratio Control (GARC) System is so incredibly resourceful it controls not only the gas but also air rates required for optimal combustion. The GARC System is the reason extended lines for venting are permitted on the unit; ideal combustion is maintained thanks to accurate sensing and control of the rate of air and gas needed.

This ingenious system also prevents CO poisoning from unfavorable wind conditions, and maintains stable combustion even when gas pressure is low or erratic.

Automatic Water Fill
Navien Combi water heaters automatically fill water into space heating pipes when sensing water shortage.

Convenient Remote Control
Navien designs all its products—and their features—to be both stylish and convenient. The Combi’s Remote Control utilizes a wide LCD display, orange backlight for easy night vision, 24-hour time scheduling for reserved space heating, and easy-to-use button controls.