Comparison of Noritz Tankless Water Heater Price & Costs | Noritz System Buying Guide

How much will a Noritz tankless water heater cost installed? Noritz tankless water heater price ranges between $700 and $2,600 for the units plus professional installation an additional $500 to $3,000. Labor charges for installation average about $1,750. See below for factors that affect installation costs. That makes the average installed cost of a Noritz whole house tankless water heater about $3,200.

Here is a Noritz tankless water heater price list by model.

Noritz Tankless Water Heater Price Ranges
Series Models Included Sizes Installed Cost Budget Level
Mid-Efficiency NR50/66/83/98 Indoor & Outdoor Small to Large $1,400 – $3,550 Low – Medium
High-Efficiency/ Condensing NRC66/111 Indoor & Outdoor Medium to Large $2,000 – $3,950 Medium – High
High-Efficiency/ Condensing / Recirculating NRCR92/111 Large $3,000-$4,700 High
High-Efficiency/ Condensing/ Easy Installation EZTR40/EZ98/111 Small to Large $2,000 – $3,700 Medium
The model numbers refer to the type and maximum GPM or Gallons per Minute the unit supplies.
The number 50 indicates 5.0 GPM, 83 means 8.3 GPM, 111 is 11.1, etc.
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Below you’ll find reviews for all of the Noritz tankless water heaters including their efficiency, gallons per minute (GPM) flow rate, and other important features. All of the Noritz tankless water heaters are whole-house models, gas powered, and can be installed for natural gas (NG) or propane (LP), with both outdoor and indoor options available.

Who is Noritz?

Noritz began in Japan and has been a leader in the water heater industry for over 60 years introducing the first tankless water heater in 1981. Noritz America was established in 2001 with headquarters in Fountain Valley, California.

Overview of Noritz Tankless Water Heaters

Noritz offers many options in tankless water heaters with small units suitable for one-bathroom households, like apartments or condos, all the way up to units that can provide adequate hot water in homes with 4 or more, bathrooms plus a dish washer and clothes washer.

Noritz categorizes their units into series. The NR Series are all mid-efficiency units. The high-efficiency series include the NRC Series, which are condensing units, the NRCR Series which are condensing and recirculating units, and the EZ Series which are condensing units that are made to be very easy to install as direct replacements for older units.

Note: In the series just mentioned, the “C” means it is a condensing unit that offers high efficiency. The “R” indicates it has recirculating potential, an “extra” installation that means you’ll have near-instant hot water at the outlet of your choice – and significantly higher installation costs.

Noritz makes some of the most popular tankless water heaters on the market. Plumbers give them good ratings, and the range of sizes and features allows you to find good options for your homes.

Here are our Noritz tankless water heater reviews for each series.

Noritz NR Series Mid-Efficiency

The NR Series is Noritz’s most economical series featuring models at 5, 6.6, 8.3, and 9.8 gallons per minute of hot water. These are all in the mid-efficiency range with UEFs (Uniform Energy Factor) at either 0.81 or 0.82, so they aren’t Energy Star certified. A UEF of 0.81, for example, means that 81% of the heat created is transferred into your water supply, and 19% is lost with exhaust gases.

While lower in efficiency than other Noritz options, they are more affordable.

noritz tankless water heater

The NR series includes outdoor and indoor units in a variety of sizes.

NR50OD – Outdoor

This is an outdoor unit and if you live in a cold climate will need to purchase a freeze protection kit.

  • Maximum BTUs: 120K
  • GPM: 5.0 at a 35° temperature rise, 4.3 at a 45° temperature rise
  • Installed Price Range: $1,400 – $1,750

NR66OD – Outdoor

  • Maximum BTUs: 140K
  • GPM: 6.6 at a 35° temperature rise, 5.3 at a 45° temperature rise
  • Installed Price Range: $1,600 – $2150

NR83DVC – Indoor – Concentric Direct Vent

  • Maximum BTUs: 180K
  • GPM: 8.3 at a 35° temperature rise, 6.7 at a 45° temperature rise
  • Installed Price Range: $2,000 – $3,150

NR98 Series

NR98OD – Outdoor

NR98SV – Standard Vent – Indoor or Outdoor

NR98DVC – Concentric Direct Vent – Indoor or Outdoor

  • Maximum BTUs: 199.9K
  • GPM: 9.8 at a 35° temperature rise, 7.5 at a 45° temperature rise
  • Installed Price Range: $2,400 – $3,550

Noritz NRC Series High-Efficiency Condensing

The NRC Series includes all high-efficiency, condensing units with UEF numbers at 0.89 and 0.91. These are Energy Star Noritz tankless heater options.

NRC66OD – Outdoor / NRC66DV – Indoor with Direct Vent

  • Maximum BTUs: 120K
  • GPM: 6.6 at a 35° temperature rise, 5.3 at a 45° temperature rise
  • Installed Price Range: $2,000 – $3,200

NRC111OD Outdoor or NRC111DV – Indoor with Direct Vent

  • Maximum BTUs: 199.9K
  • GPM: 11.1 at a 35° temperature rise, 8.4 at a 45° temperature rise
  • Installed Price Range: $2,850 – $3,950

Noritz NRCR Series High-Efficiency Condensing & Recirculating

The Noritz NRCR are condensing and re-circulating units using a fully integrated pump to keep hot water instantly available to even the farthest areas of our home, minimizing wait time and water waste.

The NRCR units also feature a “learning mode” and based on your daily hot water use will turn on the recirculation pump at the appropriate time.

These Noritz tankless heater units deliver extremely high efficiency at 0.97 UEF and are Energy Star certified.

The NRCR units have two stainless steel heat exchangers that are resistant to corrosion and build-up, extending the lifespan of the system.

NRCR92DV – Indoor with Direct Vent

  • Maximum BTUs: 165K
  • GPM: 9.2 at a 35° temperature rise, 7.1 at a 45° temperature rise
  • Installed Price Range: $3,000 – $4,400

NRCR111DV – Indoor with Direct Vent

  • Maximum BTUs: 199.9K
  • GPM: 11.1 at a 35° temperature rise, 8.7 at a 45° temperature rise
  • Installed Price Range: $3,200 – $4,700

Noritz EZ Series Condensing

Noritz’s EZ Series features direct tankless replacements for tank type water heaters. The EZ Series have the ability to vent directly through the existing B-vent and use top-mounted water connections. These factors reduce installation time and Noritz tankless water heater price for these models.

The EZTR40 holds a EUF of 0.87. The EZ 98 and EZ111 are both Energy Star certified at EUFs of 0.95, are Wi-Fi capable, and feature 25-year limited warranties on the heat exchanger.


  • Maximum BTUs: 120K
  • GPM: 6.6 at a 35° temperature rise, 4.9 at a 45° temperature rise
  • Installed Price Range: $2,000 – $2,350


  • Maximum BTUs: 180K
  • GPM: 9.8 at a 35° temperature rise, 7.6 at a 45° temperature rise
  • Installed Price Range: $2,400 – $3,000


  • Maximum BTUs: 180K
  • GPM: 11.1 at a 35° temperature rise, 8.7 at a 45° temperature rise
  • Installed Price Range: $2,800 – $3,700
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Noritz Tankless Water Heater Prices and Information
Series/Model Indoor/ Outdoor GPM Maximum BTUs UEF Efficiency
without Installation*
NR50OD Outdoor 5.0 120K 0.82 Mid $700 – $900
NR66OD Outdoor 6.6 140K 0.81 Mid $850 – $1,250
NR83DVC Indoor 8.3 180K 0.82 Mid $1,100 – $1,400
NR98OD/SV/DVC Either 9.8 199.9K 0.82 Mid $1,350 – $1,800
NRC66OD Outdoor 6.6 120K 0.89 High Condensing $1,000 – $1,350
NRC111OD/DV Either 11.1 199.9K 0.91 High Condensing $1,650 – $2,200
NRCR92 Either 9.2 165K 0.97 Very High Condensing/ $1,750 – $2,200
NRCR111 Either 11.1 199.9K 0.97 Very High Condensing/ $1,850 – $2,600
EZTR40 Indoor 6.6 120K 0.87 High Condensing $1,400 – $1,600
EZ98 Either 9.8 180K 0.95 High Condensing $1,500 – $2,100

Understanding Noritz Tankless Water Heater Model Codes, Options, and Features

Understanding Model Numbers

Noritz uses easy-to-understand model numbers that provide a description of each of the units. Besides the EZ series, all of the model numbers begin with NR.

NR Noritz tankless series are all mid-efficiency units. The model numbers that start with NRC indicate condensing (“C”) units with higher efficiency.

The NRCR series are all condensing (“C”) and recirculation (“R”) units. The EZ letters indicate the unit is easy to install. All of the EZ units are condensing units.

The numbers after the letters indicate the GPM or maximum gallons per minute the unit can provide. For instance, the NR83 offers up to 8.3 GPM and the NCR111 can deliver up to 11.1 GPM.

The last numbers in the model number indicate the type of venting the model requires. OD indicates the unit is an outdoor only model, DV is Direct Vent, DVC is Direct Vent Concentric, and SV means Standard Vent.

About Gallons Per Minute (GPM) and Water Temperature

Most tankless water heaters list GPM – the number of gallons per minute of hot water they can provide.

Note that the maximum GPM is affected by the temperature of the incoming water into the unit. If the temperature difference between the incoming water and the temperature you want for your shower, is less than a 30° difference, the unit can deliver the maximum GPM.

With a 6.6 GPM unit as an example, and a temperature difference or rise from the incoming temperature to what you want it to be at the outlet, of 40°, the unit will deliver about 5.5 GPM or about 83%.

At a 50° rise, the unit will deliver 4.4 GPM or 67%, and at a 60° change, the unit will deliver about 3.7 GPM or 56%. But keep in mind that these numbers are still adequate to deliver continuous hot water to 2-4 outlets.

Buying Tip: If you live in a cold climate, you will want a larger unit that can still provide the necessary amount of hot water during the winter months. If you use water from a well, you’ll need to know the annual mean temperature of your water to determine which unit will best meet your needs.

Outdoor vs Indoor Noritz Tankless Water Heaters

In warm climates, installing your Noritz tankless water heater outside will save quite a bit on installation, and the outdoor temperatures won’t significantly reduce energy efficiency.

In cold climates, consider an indoor unit, although most of the Noritz units include built-in freeze protection, and the higher installation cost for an indoor unit might outweigh any energy savings. Talk with your installer to review costs and options.

Recirculating Tankless Water Heaters

Noritz tankless water heater prices are higher for recirculating models. And a recirculating unit will increase your installation and operating costs.

The advantage of a unit with a recirculating pump is that it will give you instant hot water because the pump circulates the water in the pipes, so it will not cool off.

All top brands offer recirculating models including Navien tankless water heaters and those from the Rheem brand. Rinnai makes fewer options for recirculation.

Noritz Tankless Features

The Noritz tankless water heaters include some or all of the following features:

  • Energy Star – All of the high efficiency series (NRC, NRCR, and EZ) meet Energy Star standards
  • Commercial-grade copper heat exchangers are featured on the NR83 and NR98 Series
  • Dual stainless steel heat exchangers are used on the EZ98 and EZ111 Series
  • Wi-Fi: The NRCR Series and the EZ98 and EZ111 are Wi-Fi capable
  • NG/LP: Each model is available in natural gas and liquid propane versions
  • Freeze Protection – included in all but the NR50OD
  • Automatic Overheat Protection
  • Temperature Lockout
  • Direct Ignition
  • Digital Water Temperature settings of 100°F to 140°F
  • Condensate Overflow Monitoring System on condensing units
  • Flame Sensor
  • Service Reminder Function

Factors That Affect Installation Cost

There are many things that will affect Noritz tankless water heater cost for the unit and installation including:

  • The size and type of the unit
  • Whether you are replacing a tankless unit or installing a new system that requires a new gas line, wiring and vent
  • Whether the old unit must be removed and disposed of

A new indoor system may require installing venting and running new gas and water lines which can be quite labor intensive. Get a few quotes but make sure the installer has experience with tankless water heaters and is licensed and insured.

Keep this in mind: Professional installation is required to maintain the Noritz warranty, which will be considered void if the units are not installed by a licensed installer.

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Warranty Information

All of the Noritz units, except the EZ98 and EZ111, come with a 12-year limited warranty on the heat exchanger, a 5-year warranty on parts, and a 1-year warranty on labor. The EZ98 and EZ111 both come with a 25-year limited warranty on the heat exchangers, 5 years on parts, and 1 year on labor.

Where to Purchase Noritz Tankless Water Heaters

Noritz provides a distributor search feature on their website, which you can access here.

You’ll find these to be mostly plumbing supply companies. Our recommendation is to talk to a few suppliers as we’ve seen a wide range of prices listed, for the same models, on various online websites.

Lowes also carries several Noritz units, but some of these are units that have been discontinued by Noritz, so they are probably older models still in stock. Amazon also sells a few models, but the prices are on the high end.

Noritz Combination Tankless Water Heaters/Boilers

Need water and heat?

Noritz also manufactures two water/boiler combo units – NRCB180 and NRCB 199. The NRCB180 provides 9.8 GPM and the NRCB199 provides 11.1 GPM. Both units are high-efficiency, condensing, indoor units, and deliver a 95% AFUE. Both units are made with 316L-grade stainless steel heat exchangers and carry a 10-year heat exchanger warranty with 5 years on parts and 1 year on labor.

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Corporate Contact Details

Noritz mailing address:

11160 Grace Avenue, Fountain Valley, California 92708

Phone number is: 714-241-1196

Toll Free: 1-866-766-7489

You can also use the Contact Form at this link.

There is much more information on the Noritz website.

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