Navien Tankless Water Heater Reviews in 2022 – Top picks

Due to its reliability, trustworthiness, and quality products, KyungDong Navien is one of the most popular platforms in the world.  With Navien tankless water heaters, you get high efficiency, as well as environmental safety. The inbuilt features enable them to reduce unwanted CO2 easily. Additionally, it reduces energy costs. Both commercial and residential water heaters are available. Both commercial and residential water heaters can be used. 

At a Glance:

Top 5 Best Navien Tankless Water Heater

Here is the list of the 5 best Navien Tankless Water Heaters. This brand is ready to provide you an amazing service.

DesignTankless Heater BrandsRetailer
 1. NPE-180A Tankless Water Heater
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2. NPE-210A Tankless Water Heater
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 3. NPE-240A Tankless Water Heater
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4. NPE-150S Tankless Water Heater
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 5. NPE-180S Tankless Water Heater
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NPE-Advanced Series

Naviens’ Advanced series water heaters use Comfort Flow technology. Using this technology, hot water is delivered to an open faucet in only 1 second. This technology also maintains a consistent temperature while guaranteeing constant flow rates. 

1. NPE-180A Tankless Water Heater

NPE-180A Tankless Water Heater
NPE-180A Tankless Water Heater

The NPE-180A is one of the most popular models in the Advanced series. 

Flow Rate

It has a capacity of 8.4 gallons per minute which is ample to run 3 to 4 water applications at a time. Thus this model is suitable for large families with five people and 2 to 3 bathrooms. 

Cascading Technology

Equipped with cascading technology, it is pretty easy to join multiple tankless heaters together to fulfill excessively large demands of hot water. For example, it could be used for large industrial and commercial applications. 

Longer Lifespan

An NPE-180A heat exchanger is made of stainless steel to prolong its lifespan. Unlike standard copper, this has higher corrosion resistance.

 Field Convertible Gas System

This technology makes it possible to convert your water heater from natural gas to propane or vice versa whenever you need it.

Pros

  • Eco-friendly unit with low NOx emission rate (20ppm)
  • Durable and reliable
  • It heats water within 1 second
  • Unlimited hot water supply

Cons

  • Expensive 

2. NPE-210A Tankless Water Heater

NPE-210A Tankless Water Heater
NPE-210A Tankless Water Heater

NPE-210A is specifically designed to meet the large demands of hot water. 

High Flow Rate

With a high GPM rate of 10.1, this tankless heater allows you to run 2 or even 3 showers including laundry and dishwashing. So you can do whatever you want without a shortage of hot water. 

Desired Temperature

This unit features two stainless steel heaters which make it possible to obtain your desired temperature. 

Compact Design

The compact wall-mount design makes it easy to fit on the wall or even in tight spaces. Although it is an indoor tankless heater, you can install it as an outdoor version as it gets noisy during operation. 

Convertible Gas System

Although natural gas or propane models are available for you to choose from, you can change the fuel source easily. This is because of the convertible system. 

Pros

  • Circulation pump heat water quickly
  • Display controllers adjust the temperature
  • Durable double heat exchange
  • Energy efficient

Cons

  • Not available commonly

3. NPE-240A Tankless Water Heater

NPE-240A Tankless Water Heater
NPE-240A Tankless Water Heater

NPE-240A is considered a robust tankless model. 

Flow Rate 

Its flow rate varies depending on the groundwater. With a 45° F temperature rise, it offers 8.7 GPM that is ideal to handle two hot showers, kitchen faucets for dishwashing, and laundry as well. 

Similarly, with a 35° F temperature rise, you can enjoy 11.2 GPM which is tremendously high and allows you to run multiple applications simultaneously.

Intelligent Preheating Technology 

Through this intelligent preheating technology, the heater smartly recognizes your schedule of hot water and heater water accordingly. For example, it learns and remembers your shower time, and heats water early before your time. 

Thanks to the buffer tank feature, that keeps heated water at the desired temperature unless you need it. 

Front Panel

Last but not least, the front panel has an external interface that is user-friendly. You can now easily monitor the cascade operation, water flow rate, and temperature. 

Easy Operations

Thanks to the easy interface that makes everything easy. You can now adjust recirculation mode, alter the temperature, turn off the heater and troubleshoot minor issues with the help of a button.

Temperature Range

You can set the temperature ranges from 9° F to 140° F with a 1-degree increment without any trouble. 

Pros

  • Delivers strong water flow
  • Water stays hot for a longer period
  • The front panel makes adjustments easy
  • Preheat the water intelligently

Cons

  • It gets noisy at times
  • You need to buy remote separately

NPE-Standard Series

With Navien, you are able to choose a Standard or Advanced series that is more affordable and just as powerful. The Standard series is more efficient and requires less maintenance than the Advanced series.

4. NPE-150S Tankless Water Heater

NPE-150S Tankless Water Heater
NPE-150S Tankless Water Heater

It is the smallest Navien water heater. 

Flow Rate

The NPE-150S offers 6.8 GPM, which is sufficient for most average-sized homes and more than enough for small homes. Due to its cascading capability, larger commercial spaces and homes can also take advantage of its benefits. 

Ultra Condensing Efficiency

Stainless steel heat exchangers and ultra condensing efficiency make this water heater a great addition to any home. The metal fiber burner maintains a constant mixture of gas and air so that low NOx emissions are achieved.

Gas Line Requirements

The NPE-150S can be connected to 24 feet of gas line from the lower part of a 12-inch gas line, as opposed to other tankless water heaters. A dual venturi fan and a negative pressure gas valve ensure compatibility with low gas pressure. 

Remote Control

Thanks to the remote control technology for making temperature and recirculation timer setting pretty easy. Now you do not need to go to the control panel every time you want to make changes. Unfortunately, the remote does not come with the tankless model, you have to purchase them separately. 

You can also configure the temperature and control the initial activation system with a cascade system.  

Pros

  • Perfect for an average-sized family
  • Energy efficient
  • Affordable and durable
  • Low NOx combustion

Cons

  • You need to buy remote separately

5. NPE-180S Tankless Water Heater

NPE-180S Tankless Water Heater
NPE-180S Tankless Water Heater

The tankless water heater NPE-180S is the most efficient condensing water heater. 

Flow Rate

In terms of flow rate, like every other Navien series, this heater also offers a huge flow rate of up to 8.4 GPM. This flow rate successfully fulfills the requirements of a family of four or five people. 

Ready-Link Cascading Technology

The Ready-Link cascading technology allows you to combine this unit up to 16 units, regardless of the fact that this may only be enough for a mid-size home. Businesses such as hotels that require large amounts of hot water could take advantage of this system.

Cost-Effective

In spite of the relatively high sticker price of the NPE-180S, these water heaters quickly cost less to own due to the low operational costs. Having hot water available quickly and with high efficiency lowers operating costs.

Pros

  • Huge flow rate runs multiple fixtures 
  • Features Ready-Link Cascading Technology
  • Robust and cost-effective model
  • Energy efficient

Cons

  • Sometimes temperature fluctuates 

About Navien: Where are they made?

The company is affiliated with KyungDong Navien. In 2006, the company entered the North American market under a new name, changing its name from Kyung Dong Machinery Co., Ltd., founded in 1978.

Currently, condensing technology is the company’s primary concern. It is no surprise then that Navien dominates the condensing gas water heater market in North America. In addition to focusing on green technology, the brand is committed to improving comfort in the home while reducing carbon footprints.

The water heaters manufactured by Navien are made in South Korea. The Seaton plant, according to its website, is the largest boiler fabrication plant in the world. 

Types of Navien Water Heaters

Water heaters by Navien fall into two categories:

the NPE-Advanced series (or NPE-A)

Non-condensing units

Both series include many models that are ENERGY STAR certified and have high energy efficiency ratings. These heaters are all gas-powered with condensing technology.

Salient Features of Navien Tankless Water Heater

With some impressive features, these water heaters are top of the line. In order to avoid corrosion caused by condensing or cooling, all models have stainless steel heat exchangers. Let’s take a closer look at other amazing features of Navien tankless heaters. 

The NPE-Advanced Series is equipped with ComfortFlow technology, which recirculates water and fills an added buffer tank. This pump includes a timer, so when there is no demand for water, the pump doesn’t recirculate and reheat it. 

With NaviLink, Navien’s water heaters can be remotely monitored and controlled via WiFi. Wireless controls from various sellers cost $200-$225.

Cascading Technology is available on all Navien models. This enables large homes and commercial applications to cater to large hot water demands by linking up to 16 units using a common vent.

HotButton, which can be mounted remotely, usually near a bathroom, is an additional Navien accessory. The button will activate internal recirculation so that hot water can be accessed instantly from a faucet like a shower.

H2Air Kits are available with the Navien Advanced Series. Radiant-like heat exchangers are installed in furnaces and air handlers to circulate hot water.

The Advanced Series water heaters also come with a handheld remote control that allows you to set up automatic water temperature control and recirculation timers.

Tankless water heaters manufactured by Navien are highly regarded by consumers. Reviews repeatedly mention the easy installation, energy savings, solid construction (which is easy to maintain), and small size of the unit.

Moreover, they are pleased with the speed with which hot water arrives at their faucet as well as the relative quietness of gas water heaters.

In terms of complaints regarding Navien water heaters, they are pricey (average price of $1,200). But due to their extended durability, higher efficiency, and superior technology, many consumers consider these heaters to be worthy investments.

Navien tankless water heaters are renowned for their durability and performance. There is a slight price difference between this brand and others such as Rheem and Rinnai. The price ranges from $1,000 to $1,535 which is not affordable for everyone. 

An installation of a tankless water heater may cost between $575 and $1500, depending on several factors like:

Gas line installation required

Installing a water recirculation line anywhere

Venting is required

Installing Navien Water Heaters

Normally, Navien water heaters are installed within four hours. Using PVC for the exhaust system has reduced this usage from many condensing water heaters.

The installation instructions are fairly straightforward and clear to follow, but licensed instruction is recommended to avoid any mishap.  Proper installation of a gas heater should be performed only by a trained HVAC technician, as it can cause serious harm if it is installed incorrectly.  

It is still important to perform routine maintenance and inspection on Navien water heaters, no matter how high quality the parts are made. 

The inbuilt control panel helps you to detect the issues timely. But it is also important to have regular inspections of things like vent parts, valves, filters, and electrical wiring. Due to their modular design, water heaters are easier to maintain and service than some other water heaters.

Warranty & Customer Service for Navien Heaters

The Navien offers an amazing 15 years warranty for heat exchangers. There is no brand whose warranty is longer than this. As an added bonus, the parts have a five-year warranty and the labor comes with a one-year warranty.

The feedback from customers regarding the customer service is positive. Support is rated as timely and trustable by most respondents, which makes Navien a trustworthy company.

Where can I buy Navien tankless water heaters?

Sadly to know that Navien does not allow local retail stores, or even big stores such as Lowes and Home Depot to sell their tankless heaters. They are not available on Amazon either. You can only purchase through their company outlets. 

Frequently Asked Questions

Are Navien tankless water heaters any good?

A Rinnai heater’s high-tech Japanese construction makes it more robust than a Navien heater when it comes to long-term durability. However, Navien’s products are backed by a 15-year warranty.

Which is better Rinnai vs Navien?

A Rinnai heater’s high-tech Japanese construction makes it more robust than a Navien heater when it comes to long-term durability. However, Navien’s products are backed by a 15-year warranty.

How long should a Navien tankless water heater last?

It is estimated that Navien tankless water heaters will last more than 20 years. To increase the lifespan of your tankless,  regular maintenance is required. 

Conclusion

On the whole, there are countless tankless water heaters available on the market, each one is different. In terms of tankless water heaters and boilers, Navien is at the forefront of the industry. Compared to other water systems, they offer higher compatibility, and their parts are more durable. Low bills and a significantly smaller carbon footprint are two benefits of Navien tankless water heaters.

Recommendation

When buying a Navien tankless water heater, you should determine your particular need for your home and family first. How much hot water you use should be your first consideration. For large families and large demand for hot water, I would recommend NPE-240A as it has 11.2 GPM.

In case of a sample family and low demand for hot water, buy this model. 


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