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Why Navien Tankless | Tankless Pros Az | Phoenix, AZ

Why Navien Tankless

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NPE-A2 Advanced



Enjoy Hot Water Tonight!

A Brief History of Navien Tankless Water Heaters

Navien was founded in 1978 in Seoul, South Korea, and was known as KyungDong Navien, or KD Navien. In 1988 KD Navien became the first company in Asia to develop and produce a highly efficient, environmentally friendly condensing boiler.


The company quickly expanded overseas. Navien exports HVAC products to more than 35 countries nationwide.

In 2006 the company expanded to North America, becoming the largest condensing gas water heaters manufacturer in North America.


The company’s North American Branch is headquartered in Irvine, California. Until recently, Navien products were only made in South Korea. The company is soon expanding to the east coast of the United States.

Navien also takes great pride in making sure their water heaters are installed and maintained by qualified professionals. To that end, Navien offers hands-on training at three state-of-the-art training centers in Irvine, California; Morristown, New Jersey; and Woodbridge, Ontario.


How Reliable Are Navien Tankless Water Heaters?

Navien water heaters come with the highest efficiency rating on the market and both LEED and Energy Star® certifications, making them among the greenest on the market.


These certifications confirm that Navien water heaters have longer lifespans, use less energy, and leave a smaller carbon footprint than other water heater manufacturers.   


Navien produces two main lines of tankless water heaters: condensing and non-condensing. 

One of the benefits of a tankless water heater is its ability to quickly heat water upon demand since it is not heating a tank of stored water. This intense heat creates steam very quickly. Once the steam cools, it condenses back into water. 


Multi-line control with built-in intuitive software 

Navien new backlit EZNav™ control panel uses simple text and icons to make set up, operation status and troubleshooting faster and easier than ever before.


  • Self-diagnostics.

  • Displays temperature and water flow rate.

  • Displays status of cascade operation.

  • Convertible display from °F to °C.

  • User Friendly Interface.

  • Easy setup.

How Long Does a Navien Last?


20+ years with proper maintenance

A Navien tankless hot water heater is about twice expensive as a tank-type hot water heater, However it last almost 3-times as long (Data obtained by accelerated aging process). If you install a new gas Navien tankless water heater today, you can enjoy reliable hot water for an average of 20+ years, and if you choose the optional scale inhibitor, and have it installed on your new unit, then you can expect an increased life-span of 25 to 30 years according to the experts. Note; Ask us about ScaleRx limescale inhibitor.

Navien...the proven leader in condensing gas tankless,

makes it even easier to install and set up with the new NPE-A2 series front touch panel.


2" PVC up to 75 feet and 1/2" gas up to 24 feet


High efficiency up to 0.95 UEF and up to 15:1 TDR



Durable dual stainless steel heat exchangers


EZNav™ multi-line control with built-in intuitive software

7 Reasons Most Folks Choose Navien Over Other Brands


1) Longest-lasting components

Navien tankless water heaters feature a stainless steel heat exchanger, which lasts much longer than a copper heat exchanger in other tankless brand water heaters. Dual stainless steel heat exchangers extend the life of the unit by resisting corrosion, and limescale buildup.


2) Best Warranty 

In residential installations, Navien offers 1 year warranty on labor, 5 year on parts, and 15 years on the heat exchanger.


3) Lower Installation Cost

Because a Navien tankless uses ½” gas pipe and 2” PVC venting, you’ll save on installation costs – it can be installed in about half the time as competitors’ tankless brands.


4) Unlimited Hot Water

You’ll get endless streams of hot water whenever you want, since there’s not a capacity tank! You'll never run out again.


5) Longest Lasting Gas Tankless

The average competitor gas tankless water heater last about 15-years, Navien tankless last an average of 20-years without a scale inhibitor installed, with proper maintenance.


6) Energy Star

The NPE model was the first gas water heater to be Energy Star certified, and is the most energy efficient* tankless water heater in the industry average .97EFH


7) Most Options Than Other Brands

Navien gas tankless water heaters offer the most options for your tankless hot water heater needs.






Navien NPE-A2 "Comfort-Flow" System

Navien tankless hot water heaters are the first and only systems that utilize a built-in insulated buffer tank and recirculation pump. The buffer tank eliminates the bursts of cool water you get with other systems (cold sandwich) and eliminates minimum flow rates you’ll find in other tankless water heaters. 


Built-in recirculation system

Navien’s patented ComfortFlow® system is the first to include a buffer tank, recirculation pump and fine-tuned controls into a tankless water heater, resolving the cold-water sandwich effect* and issues of minimal flow rates commonly found in other tankless water heaters.

* The “cold-water sandwich effect” is the undesired introduction of cold water into the hot water supply line on occasions of frequent on/off operations. (Measure Guideline: Transitioning to a Tankless Water heater, DOE, Sept.2012).

The built-in recirculation pump allows the NPE-A2 to recirculate water either through an external recirc line or through existing supply lines while using NaviCirc®, without the need for external pumps or controls.


Optional NPE-A2 recirculation valve

Designed for recirculation of domestic hot water in applications where a dedicated return line is not available.

Part No. PFFW-001, NaviCirc Kit: 30022965A. External recirc pump and check valves not included.


Optional Wi-Fi remote control system





NaviLink makes it easy to communicate with your Navien systems anywhere internet service is accessible. The NaviLink module attaches easily to any new or existing* Navien tankless water heater, combi‐boiler, and boiler.


* Existing installations may require the purchase of a new main PCB and front control panel. 


Available for Download
on IOS or Android


For Larger Applications, Cascading up to 32 units and common vent up to 12 units

Cascade up to 32 units with Navien Ready-Link® technology.

With Navien's Ready-Link® cascading technology, when a unit gets up to 80% capacity the next unit will turn on to help meet requirements. The flow-on-demand ratio will continue until all 32 units are generating hot water as needed. The Navien cascading system also balances out the workload of each unit for longer life.

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