3 Best Noritz Tankless Water Heater Reviews of the Brand

Noritz is one of the leading brands in producing high-quality tankless water heaters for commercial and residential use. If you have basic knowledge of it, you will find how valuable its product is.

This Noritz tankless water heater introduction and recommendation reviews all models, including the features, GPM flow rate, energy costs, and shining points.

Go on reading if you have an interest in it!

Table of Contents show

About Noritz

In 1981, Noritz first launched its tankless water heaters on the market and quickly be known to customers. Nearly all the components are made directly by Noritz itself, seldom are outsource. The design of Noritz tankless water heaters origin in Japan, but is widely used and accepted in the USA and Canada.

Based on the belief of providing energy-efficient and environmentally friendly tankless water heaters, Noritz constantly improved their production skills and technology. For the past years, Noritz has always been a leading brand in offering commercial and residential tankless hot water heaters. Being a top rated tankless water heater brand, Noritz can be your most reliable and trustful choice.

Top 5 Best Noritz Tankless Water Heaters

Where Are Noritz Tankless Water Heaters Made?

Before going through these essential tips, let’s first explore more about the Noritz tankless water heater. The Noritz Corporations is based in Japan, and they are the leading producers of tankless water heaters. In America, the Noritz Corporation was established in the year 2001 to aid in meeting the growing demand among American consumers. The Noritz American Corporation offers cost-efficient and eco-friendly water heaters, and it serves both the United States and Canada’s commercial users and homeowners.

Types of Noritz Tankless Water Heater

There are only two series of tankless water heaters being manufactured for residential use by the Noritz Corporation. These are the EZ series and the NR series. Usually, the NR series is equipped with mid-range heaters, while on the other hand, the EZ series is equipped with water heaters that have medium to high energy. In addition to that, the EZ series features several Energy Star-certified models.

· EZ series

The EZ series is specifically designed for the North American residential market. This series is highly-efficient, and they have been designed to reduce both the cost and installation time. In addition to that, the EZ series tend to cost much less when compared to replacing a bigger storage tank unit, and they have been designed for a much faster and easier retrofit. EZ series are equipped with an array of tankless water heater options for you to choose from.

· NR series

NR series are the smallest and the most affordable Noritz tankless water heater models. They are designed to be reliable, cost-effective, and highly efficient. NR series is said to be an ideal water heater for a house with approximately three bathrooms, and they offer hot water on demand, and it is highly-sufficient. Furthermore, this model is considered the best for new homes and retrofits.

Noritz Water Heaters Features Analysis

· Easy installation

Installing the Noritz tankless water heater is relatively easy; however, it is best to let the process be carried out by HVAC professionals since it involves gas units. Furthermore, when it is carried outdoors, the process becomes much easier due to ample ventilation.

· Durable

Noritz tankless water tanks are highly durable. These water heaters have been designed to be long-lasting and reliable. When taken good care of, a Noritz tankless water heater can last for approximately 20 years. Due to their durability, these water heaters are equipped with a 12-years warranty; however, this will highly depend on how you use the water heater.

· Green technology

Noritz water heaters use green technology; this makes them environmentally friendly. They have been designed to help reduce carbon emissions. Since they are long-lasting, they help reduce landfill waste, and the best part is that they feature recyclable and replaceable components. This makes it one of the best ways to reduce your carbon footprints.

· Safe operation

Safety should always be your top priority when purchasing a tankless water heater, and the Noritz is by far the safest waters heaters out there. These tankless water heaters are equipped with some incredible safety features that help in preventing hot water from accessing your faucet.

· Plenty of hot water supply

When it comes to water supply, Noritz tankless water heater has an ample supply of hot water. The water heat always heats water when it is in demand. Despite being a small and co pact system, Noritz water heater flushes out hot water whenever you need it. Once you are done using it, it turns off. This is because they have been designed to help in saving energy.

· Size variety

Noritz tankless water heater features a different size. This makes it easy for you to choose the size that will best suit your needs. These sizes have been designed to suit business and home hot water demands. Therefore, you might consider looking for the size that will be of great benefit to you.

Recommended Noritz Water Heater For Commercial Use

  • 7.5 gpm max flow rate
  • 05 gpm activation flow rate
  • Self-Diagnostic onboard computer system
  • PVC cannot be used for its venting. Use only category iii stainless steel venting
  • 84 percent thermal efficiency

Recommended Noritz Water Heater For Residential Use

  • Endless hot water
  • Can be vented with Schedule 40 PVC Pipe and Fitting
  • High Efficiency
  • Low Nox
  • Remote thermostat & 6' power cord included

· Simple troubleshooting

Noritz tankless water heaters feature some error codes that are displayed when something goes wrong. Usually, these minor errors can be fixed easily with the help of essential tools irrespective of your mechanical knowledge. Some of these simple troubleshooting include;

Error Code 05

When you see this error code, it indicates that an automatic service reminder that tells you your system service is due. It is best to call a licensed technician when this appears.

Error Code 10

This error code will appear when combustion continues or when power drops even when you turn off the unit. To fix it, you should look for foreign materials or objects such as grease and oil on your burner that might be burning.

Error Code 11

This error code will appear when there is an ignition problem. You should consider checking the gas pressure when there is an ignition failure and ensuring that there is no obstructing air supply. It is best to get rid of any such obstructions.

· Turbo flow

Noritz tankless water heaters are equipped with different but powerful turbo flow. These turbo flows differ depending on the model of the water heater. Usually, a Noritz tankless water heater with a turbo flow of 7.1 GPM will have a temperature rise of 35 °.

· Dual-flame burner

Noritz tankless water heater is the only brand that offers dual flame burner. This technology has been designed to improve efficiency, boost performance, and stabilize temperature fluctuations.

· Commercial grade heat exchanger

The Noritz heat exchanger has been designed using commercial-grade copper that helps in improving both the durability and performance of the water heater. This makes it one of the best in today’s market.

· Electronic board

Noritz tankless water heater is equipped with an electronic board that aids in saving energy significantly. They have remained to be the best when it comes to saving energy.

· Condensing technology

The condensing technology has been designed to help in capturing and reusing heat that went in the flue. Noritz tankless water heater achieves this by tuning on hot-water appliances and then rapidly heats incoming water to aid in designating temperature.

Noritz Heater with Condensing Technology

  • Endless hot water
  • Very high efficiency
  • Compact Space Saving Design

· Venting

Noritz tankless water heater feature venting that has to meet all the essential requirements. They feature different types of venting designed for several applications making these water heaters the best for both home and industrial use.

Noritz Tankless Heater Prices

When it comes to prices, Noritz tankless water heaters tend to differ. The model and the size often determine the price. Noritz tankless heater prices range from $1, 350 to $1,500; therefore, you can choose the best model within your budget range.

Best Noritz Tankless Water Heaters Reviews

Noritz tankless water heaters are frequently used commercially and domestically. The flow rate of those is relatively high. Here we sorted out five best Noritz tankless water heaters reviews for you:

1. Best Condensing – Noritz NRC661-DV-NG Indoor Tankless Hot Water Heater

This unit is an indoor hot water tankless water heater, which means you need to get extra venting kits.

tankless water heater reviews noritz
Noritz tankless

 

 

Features:

  • Compact and quiet working

Compared with a tank water heater, this is really compact and suitable to be installed indoor for a small tiny home. The working of the unit is super quiet and nearly no clicking relays can be heard.

  • Endless hot water

It offers 0.5-6.5 gallons of water per minute, enable to meet your demand for enjoying hot water in bathing and washing. It supports hot water for two bathrooms in the south area and supports one and a half bathroom in the north area, so it is a perfect gas tankless water heater for middle size homes.

  • 2 heat exchangers

There are two heat exchangers, one is copper and the other is stainless steel, offering more options on the connection. Both of them perform well in corrosion resistance. As an indoor gas tankless hot water heater, venting kits are required. It can be vented with Schedule 40 PVC Pipe and fittings.

  • High efficiency

The gas consumption runs between 15 000 and 120 000 BTU, and thermal efficiency reaches up to 93%. Besides, this unit is a condensing type, which means nearly all the natural gas is used without being wasted. And Nox design of it greatly minimizes the emission of nitrogen oxide and is highly environmentally friendly.

  • 12-year warranty

For Noritz, all the tankless water heater has 12 years warranty for the heat exchanger and 5 years warranty for other components. Satisfying after-sales service will guarantee your rights.

  • Overall protection

The unit is well made, and has freeze protection, protecting parts from being frozen in a cold climate, and that is really an important thing to consider for high altitude or cold areas customers.

  • Remote control

It boasts to support remote control so that you can control it easily no matter where you are. However, it is not equipped with the unit, you need to buy it separately if you need it.

Pros:

  1. Highly energy efficient
  2. Compact shape saves much space
  3. Money saver on bills
  4. Large flow rate and supports two bathrooms in the south area
  5. Being able to use in a cold climate
  6. Long warranty time

Cons:

It has the problem of cold water sandwich


2. Best Natural Gas – Noritz EZTR40-NG Indoor Tankless Water Heater

This Noritz tankless water heater is designed for replacement of 30-40 gallons tank water heaters. it is powered mainly by natural gas, so venting kits are required.

noritz tankless gas water heater
best tankless water heater Noritz

 

 

Features:

  • No working noise

Some of the tankless water heaters especially for natural gas types are noisy during using process, clicking relays can be heard clearly. However, this unit is super quiet, you can enjoy washing or having a bath comfortably without being bothered by annoying noise.

  • Easy installation

Installation of this type is quite easy, it takes about an hour to hook it up and connect all together if you know about the method. Detailed instructions are given with products, you can also find a professional if you have no idea how to install.

  • Smooth function

According to the reviews of buyers, this unit has no issue of leakage and restarting, the whole working process is smooth and successful. No fluctuation occurs during the whole process.

  • Endless hot water

The flow rate of the unit is 6.6 GPM, perfect for small house and family use. You can enjoy the endless hot water when bathing and washing dishes at the same time. For large family use or 3-4 bathroom, you may need to get a bigger flow rate tankless water heater.

Pros:

  1. Support one bathroom and faucet
  2. Suitable for small home
  3. Energy efficient
  4. Constantly hot water offering
  5. Easy operation
  6. 12 years warranty for heating exchanger
  7. 5 years warranty for other components

Cons:

Still get the trouble of cold water sandwich


3. Best Indoor & Outdoor – Noritz NR981-SV-NG Tankless Water Heater

This unit is designed for a 4-inch single wall, it is a natural gas tankless water heater. The temperature range of it is 100-140 degrees F.

noritz tankless hot water heater
Noritz natural gas tankless water heater reviews

 

 

Features:

  • High flow rate

The flow rate of the unit is 0.5-9.8 gallons per minute, which is super high compared with other types. It supports 3 and a half to 4 bathrooms in somewhere warm like south area and 2 bathrooms in cold areas as in the north.

  • Commercial grade copper wall

On quality level, the unit adopts a commercial-grade copper wall, which is 25% thicker than normal types. No leakage and restarting occur in using process, giving you satisfying bathing time.

  • Low Nox design

Gas consumption of the Noritz tankless water heater is between 16000 BTU and 199900 BTU. It is designed into Nox type, which means the emission of nitrogen oxide and is highly environmentally friendly.

  • Elevation adjustment

For high altitude area tankless water heater using, Noritz equips the unit with elevation adjustment. Nine heating options give you more choice in choosing the most suitable temperature for bathing or kitchen washing.

  • 12 years warranty

The same as other Noritz tankless hot water heater, this unit has 12 years warranty for its heating exchanger and 5 years warranty for other components and parts.

  • Indoor & Outdoor Installation

This unit can be installed both indoor and outdoor, but one thing needs mentioning is there should be venting kits for indoor use. It supports remote control, but you need to buy it separately.

Pros:

  1. Energy efficient
  2. Best tankless gas water heater for large homes use
  3. Long time warranty
  4. Supports 3 and a half to 4 bathrooms in the south and 2 bathrooms in north
  5. Elevation adjustment for high altitude
  6. 9 heating options
  7. Install for both indoor and outdoor

Cons:

It takes some time for hot water to flow out


4. Best For Outdoor – Noritz NR662-OD-NG Natural Gas Tankless Water Heater

Tankless water heater of this type must be installed outdoor, so no venting kits are required in the installation.

noritz propane tankless water heater reviews
Noritz tankless water heater

 

 

Features:

  • Gas and propane available both

For this tankless water heater, you can adopt both gas and propane as main power both. It is more energy-saving and money-saving compared with electric tankless water heaters. Heating ranges among 100 to 150 degrees F.

  • Energy efficient

The gas consumption is between 15000 and 140000 BTU, the thermal efficiency is 84%, which means a large sum of gas is used and only little is wasted. For a long period of use, the gas tankless water heater is able to save a lot of money for you.

  • Suitable for mid-size family

The flow rate of the Noritz tankless water heater is 6.6 gallons per minute, which is a relatively high range, it supports one and a half bathroom when used in the south, and a single room in north. If you are a large family of 4 or 6 bathrooms, you need to get a larger flow rate water heater.

  • Easy operation

The built-in display window shows the temperature accurately, so you can adjust the suitable one for you.

Pros:

  1. Best tankless water heater for one bathroom
  2. Large heating range
  3. Built-in display window
  4. 84% thermal efficiency
  5. 6.6 gallons per minute flow
  6. Available on propane and gas both

Cons:

Better get a professional for installation


5. Best For Commercial – Noritz NC380-SV-ASME Tankless Natural Gas Water Heater

This is a commercial tankless water heater, large flow rate enables its ability for multiple bathroom use simultaneously.

noritz electric tankless water heater
noritz tankless water heater reviews

 

 

Features:

  • 13 gallons large flow rate

This is the largest one among other Noritz tankless water heaters on flow rate 13 gallons per minute. Therefore, it is mainly designed for hotel or other commercial use, capable of satisfying large volumes of water at the same time.

  • Natural gas and propane both

Like Noritz NR662-OD-NG type, this tankless water heater is also available on both natural gas and propane. The temperature range is between 100-140 degrees F. As an energy-efficient heater, this unit saves 84% for propane and 80% for natural gas.

  • Copper made exchanger

The heat exchanger is made by commercial-grade copper, highly corrosion resistance, and long using life. It is also compatible with circulation units.

Pros:

  1. Design for hotel use
  2. Large flow rate for commercial
  3. Natural gas and propane available both
  4. Commercial grade copper heater
  5. Compatible with circulation units

Cons:

Need to be installed by professional


Noritz Tankless Gas Water Heaters Reviews

The gas tankless water heater is one of the most common types in daily use. When installed indoors, you need to get venting kits before first using for safety. Most of Noritz tankless water heaters are powered by natural gas.

here we will give three best Noritz tankless gas water heater reviews for different using conditions for you:

1. Noritz NRC661-DV-NG Indoor Condensing Tankless Hot Water Heater

Best gas indoor tankless water heater of Noritz

tankless water heater reviews noritz
Noritz tankless

6.5 gallons of water flow meets the demand for residential water use for middle size and small homes. The quiet working condition gives you better enjoyment on bathing and kitchen washing. It supports 2 bathroom use easily in the south area and one and a half bathroom in the north.

Frozen protection devices inside helps it capable of using in winter or cold high altitude situations. Copper and stainless steel exchangers give you more options in connection, both of them are of high-performance standard.

Low Nox design and 93% energy efficiency makes it a brilliant energy saver.

2. Noritz NR981-SV-NG Indoor-Outdoor Tankless Water Heater

Top rated best outdoor tankless gas water heater

noritz tankless hot water heater
Noritz natural gas tankless water heater reviews

As the name suggests, this water heater is actually indoor and outdoor available both. So you can have more options on where to install. When installed indoors, the compact shape helps save much space for you, and simple looks of it can also be a good decoration. If you need to install it outdoor, then you are free from installing venting kits as indoor does.

9.8 high flow rate of it makes it a perfect tankless water heater for large homes. It supports 3.5 to 4 bathrooms in the south and 2 bathrooms in the north. Nine heating options enable you to choose the best one for your needs.

High gas consumption saves more energy and of course your bills. Commercial grade copper walls guarantee its quality level to a large extent. Check out the price detail if you have an interest.

3. Noritz NC380-SV-ASME Tankless Natural Gas Water Heater

Best Commercial Tankless Gas Water Heater

noritz electric tankless water heater
noritz tankless water heater reviews

Different from the other two gas tankless hot water heaters we recommended before, this one is a perfect one for commercial and even serves as an industrial tankless water heater if connect many of them together.

It is made especially for hotels, the flow rate of which reaches up to 13 gallons per minute, which is really a large flow rate. Though determined as a natural gas water heater, it can also be powered by propane.

The temperature range of it is 100-140 degrees F, meets the needs of hotel use easily. A commercial-grade copper heat exchanger is also installed inside. If you are a hotel manager, or you simply want one with endless large flow water heater, this one is a perfect choice.

Noritz Electric Tankless Water Heater

Since 1981, Noritz first hit the market by its innovative electric tankless water heater and then became leading brand in the whole tankless water heaters market. However, it now pays large attention to gas or propane tankless water heaters and more and more gas tankless water heaters are accepted and used by people around the world.

Therefore, here we do not suggest Noritz electric tankless water heaters for you, if you do have interest in such item, or would like to get electric tankless water heaters of other famous brands, you can go to Noritz official website or click here for more information on Amazon.

Noritz Propane Tankless Water Heaters Reviews

The propane tankless water heater, as the name suggests, uses propane as the main power. The same as natural gas tankless water heater, venting kits need to be installed for indoor. Some of the tankless water heaters are both natural gas and propane available.

Here we made propane tankless water heater reviews for you:

1. Noritz NR662-OD-NG Outdoor Natural Gas Tankless Water Heater

noritz propane tankless water heater reviews
Noritz tankless water heater

This tankless water heater is natural gas and propane available both. The thermal efficiency of the unit reaches up to 84%, which is a relatively high-efficiency hot water heater.

The flow rate of it is 6.6 gallons per minute, able to support one bathroom and one kitchen faucet easily. Endless hot water flows without fluctuation gives you the best bathing time. The built-in display window makes it easy to operate.

The temperature range of it reaches 100-140 degrees F, outdoor installation reduces the trouble of installing venting kits.

2. Noritz NC380-SV-ASME Tankless Natural Gas Water Heater

noritz electric tankless water heater
Noritz tankless water heater reviews

This tankless water heater is designed for hotel and commercial use. Both natural gas and propane are available for the unit. 13 gallons per minute satisfies large demand for water. A commercial-grade copper heater is installed.

The temperature range is 100-140 degrees F.

Noritz Condensing Tankless Water Heater

Condensing tankless water heater refers to the unit being capable of condensing gas, the aim of which is to improve efficiency and reduce wasted gas during using process. As it is used to condense gas, all the condensing tankless water heaters are natural gas types.

We picked one best Noritz condensing tankless water heater as follow:

Noritz NRC661-DV-NG Indoor Condensing Tankless Hot Water Heater

tankless water heater reviews noritz
Noritz tankless

Condensing performance of it means nearly all the gas is used and seldom is wasted. Consumption runs between 15000 and 120000 BTU, thermal efficiency reaches up to 93%.

As it is installed indoor, venting kits need to be installed. 6.5 gallons per minute water flow meet the demand of 2 bathrooms in the south and 1 and a half bathroom in the north. If you are looking for one condensing tankless hot water heater for middle size family, this NRC661 Noritz tankless water heater will be the best choice. It is also the hot-selling one on the market in 2020. So please feel free to check the price and more information on Amazon.

Are Noritz Tankless Water Heaters Good?

Noritz tankless water tanks are by far the best in today’s market. They have been designed to outperform other brands, especially the ones that operate on gas. Furthermore, most plumbers tend to recommend Noritz tankless water heaters since they are equipped with several amazing features that cannot be found in other brands such as the dual flame burner.

How Much Does a Noritz Hot Water Heater Cost?

Since there are different models and sizes, Noritz water heaters come with a diverse price range. Depending on the size and the model you purchase, Noritz water heater costs from $1,350 to 1,500. The different range in prices allows you to choose the model that suits your budget the best.

Customer Service For Noritz Heater

When it comes to customer service, Noritz features several options for you to choose from. There is an emergency number for the company, which is crucial, and it allows customers to get support whenever an urgent matter arises. Noritz has an online platform as well, where they receive timely feedback from their consumers to any queries; furthermore, you can set a priority of their question as a customer. Noritz has some useful information on their website to help in improving their customer service even further. You will be able to go through the answers to some of the frequently asked questions.

Warranty For Noritz Heater

For residential use

Noritz heaters tend to have different warranties; this is often determined by how you use the water heater. For individuals who are purchasing heaters within the residential setting with one family, a 12 years warranty will be issued on your heat exchanger. On the other hand, the commercially purchased Noritz tankless water heaters will receive five-years on their heat exchanger.

For commercial use

For domestic products used within a commercial setting or circulated water or pre-heater, they will receive a three-year warranty on their heat exchanger. Apart from the heat exchanger, another part of the Noritz tankless water heater comes with a five-year warranty. In addition to that, you will receive a one year warranty for labor.

Installing and Costs of Noritz Tankless Water Heaters

Since Noritz tankless water heaters are gas units, it is best to let an HVAC professional carry out the installation process. When the installation of the heater is done outside, the process becomes much more comfortable; this is due to the venting needs. Ensure that the right PVC is used for venting as well as installation. When it comes to the cost, this differs significantly depending on the model; however, in most cases, it will cost you approximately $800 to $1,500 to install it.

How to Maintain Noritz Tankless Water Heaters

Just like any other tankless water heater out there, the Noritz water heaters require regular maintenance. The best part is that its maintenance is way less when compared to tank heaters. Since they are designed from high-quality products, they will rarely require any replacements. To extend its durability and functionality, you should consider carrying out some maintenance on your Noritz tankless water heater.

It is highly advisable to purge the port valves when maintaining your tankless water heater. To do this, you will attach a hose line and then open the relevant purge port valve. Ensure that you prepare it properly and have a discharge location that is safe. This is by far the best way you can maintain your Noritz tankless water heaters.

How Noritz Water Heaters Compare to Other Tankless Brands

There is no doubt that Noritz tops the list when it comes to the best tankless water heaters in today’s market. They have been in operation for more than 60 years; this makes them the best in the game. When compared to other tankless brands out there, Noritz tankless water heaters outperform all of them when it comes to capacity, durability, and functionality.

The Noritz tankless water heater is equipped with an in-built pump control, which is ideal for recirculation applications; this makes it stand out from its competitors. Furthermore, their heat exchanger is designed to form commercial-grade copper, which makes it approximately 25% ticker than most tankless water heaters in the market.

How Long Does a Noritz Tankless Water Heater Last?

If you are looking for a highly durable gas water heater, then the Noritz tankless water heater is considered as the best. They have been designed it be long-lasting with 20 years lifespan. Due to their excellent durability, Noritz tankless water heater comes with incredible warranties with 12 years being the highest. Their heat exchanger comes with 12 years warranty while other parts are equipped with five years warranty.

How Do You Flush a Noritz Hot Water Heater?

Flushing a Noritz hot water heater is relatively easy. What is required of you is to remove its pump and then drain the hose from a bucket and drain all the liquid. Once done, you will place the hose for the hot water drain back in the empty bucket and open the cold water primary valve. By doing so, you will be able to flush out your heater using fresh cold water. You should consider flushing for approximately five minutes or till you have passed 20 gallons of cold water.

Last Words About Noritz Tankless Water Heater…

To sum up, we selected the top 3 best Noritz tankless water heaters for you to choose as follow:

Noritz is the first brand on the market to bring the best tankless water heater into our lives and is now still constantly innovating and producing high-efficiency water heaters. The brand of course represents high quality and satisfying using feelings. But when you choose suitable tankless water heaters, still there are many other primary factors to be considered, such as price, size, gas pipe, etc.

Therefore, make sure to know basic knowledge about the product you intend to buy, if you have any questions or want to know more, please feel free to get in touch with us or directly go for Amazon.


 

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