Noritz Tankless Water Heaters

In 1981, Noritz introduced the first electric tankless water heater, and has been making innovative tankless water heaters ever since. The company has a huge range of products to suit every domestic and commercial requirement.

Traditional heating systems are inefficient. They waste energy and often don’t manage the hot water needs of large households. Today, people are replacing their bulky and inefficient traditional water heating systems with energy efficient tankless heaters, ensuring that hot water is always available when it is required. Below we’ve evaluated some of the best tankless water heaters that Noritz has to offer so that you can make the most sensible choice for your household.

  • 5 Customer Rating
  • Noritz NR981-SV-NG
  • Dimensions: 17 x 13 x 29 inches
  • Flow Rate: 9.8 GPM
  • Power Source: Gas-Powered
  • Weight: 54 pounds
  • Made In: Japan
  • Warranty: Manufacturers
  • 4 Customer Rating
  • Noritz NRC661-DV-NG
  • Dimensions: 6.7 x 13.8 x 23.6 inches
  • Flow Rate: 6.6 GPM
  • Power Source: Gas-Powered
  • Weight: 38 pounds
  • Made In: Japan
  • Warranty: Manufacturers
  • 5 Customer Rating
  • Noritz NR662-OD-NG
  • Dimensions: 10.7 x 17.6 x 26.6 inches
  • Flow Rate: 6.6 GPM
  • Power Source: Gas-Powered
  • Weight: 36 pounds
  • Made In: Japan
  • Warranty: Manufacturers
  • 5 Customer Rating
  • Noritz NR501-OD-LP
  • Dimensions: 10.7 x 17.6 x 26.6 inches
  • Flow Rate: 5.0 GPM
  • Power Source: Liquid Propane
  • Weight: 33 pounds
  • Made In: Japan
  • Warranty: Manufacturers
  • 5 Customer Rating
  • Noritz NC380-SV-ASME NG
  • Dimensions: 39.3 x 24.3 x 13.3 inches
  • Flow Rate: 13.2 GPM
  • Power Source: Gas-Powered
  • Weight: 105 pounds
  • Made In: Japan
  • Warranty: Manufacturers
  • 5 Customer Rating
  • Noritz NR981-SV-LP
  • Dimensions: 17 x 13 x 29 inches
  • Flow Rate: 9.8 GPM
  • Power Source: Liquid Propane
  • Weight: 54 pounds
  • Made In: Japan
  • Warranty: Manufacturers

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

Install the NR981 and your family will never have to wait for hot water again. This is a large indoor/outdoor unit that uses natural gas and can support a house with three to four bathrooms in the warm south and two bathrooms in the north. It has a flow rate of between 0.5 and 9.8 gallons per minute (GPM). The unit comes with an easy couple, so if this is not enough water for your household, you can join two together and double the capacity.

The water heater has nine heat options and can heat water to between 100 and 140 Fahrenheit. The included remote control can display temperatures in both Celsius and Fahrenheit.

This is an energy-efficient unit with a uniform energy factor of 0.82 and thermal efficiency of 84%. The ignition is electronic so you will need an electrical circuit to the heater. This system has elevation adjustments that make it a good choice for those who live at a high altitude. It is a sturdy little unit made from durable steel and coated with polyester. The heat exchanger has commercial grade copper walls that are 25% thicker than regular models, and are covered by a 12-year warranty. All other components carry a five-year warranty.

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Noritz NRC661-DV-NG Tankless Hot Water Heater

Save money with this high-efficiency natural gas powered tankless water heater. With a flow rate of 0.5 to 6.6 gallons per minute, the NRC661 is capable of supplying hot water to two bathrooms in southern climates and one and a half in colder northern climates.

This is a condensing unit that requires Schedule 40 PVC exhaust venting, so installation will be less expensive than those requiring stainless steel vents. This unit has two heat exchangers: one made from copper the other from stainless steel. Copper is a good conductor of heat and stainless steel absorbs heat well, meaning the unit is efficient. The gas consumption runs between 15 000 and 120 000 BTU, and it has a high thermal efficiency rating of 93%.  With an energy efficiency factor of .94 or .95 depending on which gas you use, the product is energy-star rated so you will be liable for a tax credit when you install it.

This system has a 120-volt circuit. Electricity is required to ignite the unit and power the electronics and also prevents the components from freezing up in winter. You can install a battery backup to ensure that it continues to operate during power outages. The lowNOx design takes up little room and can be operated by remote control, but you’ll have to purchase this separately. The heat exchangers are covered by a 12-year warranty and the rest of the components are covered for five years.

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Noritz NR662-OD-NG Outdoor Tankless Water Heater

The NR662 is an energy-star certified tankless water system powered by gas. There are both natural and propane gas units available. This unit has a flowrate of between .5 and 6.6 gallons per unit and can supply heated water to a single bathroom in cold climates or one and a half in warmer areas. It has heat settings of between 100 and 150 Fahrenheit. The sturdy steel casing is polyester coated and has a built-in display window. The gas consumption runs at between 15 000 and 140 000 BTU. This compact little unit is ANSI and CSA-certified. This is an outdoor model so you’ll save on venting costs. The uniform energy factor is 0.81 and the thermal efficiency is 84%. Like all Noritz tankless heaters, the NR662 is equipped with several safety features to ensure your comfort and safety.

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Noritz NR501-OD-LP Outdoor Tankless Water Heater

The NR501 is an outdoor tankless heater so it is cheaper and easier to install as there is no additional venting required. This is a small but very affordable unit and is a great choice for condominiums and apartments with one or two showers. The water flow rate ranges from 0.5 to 5 GPM, using gas at a rate of 15000 to 120 000 BTU.

The unit is highly efficient with a thermal efficiency of 84%. It is CSA and ANSI-certified and has a keypad thermostat with four temperature settings that range between 120 and 140 Fahrenheit. The polyester-coated steel casing is made to last. The heat exchanger has a 12-year warranty when used in a domestic environment and three years if it is in a commercial bathroom. All other components are warranted for five years. The unit includes a number of safety features such as flame sensors and lightning protection.

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Noritz NC380-SV-ASME NG ASME Tankless Natural Gas Water Heater

This tankless water heater is a commercial unit that can heat enormous volumes of water. It has been designed to serve hotels and resorts, and it can manage a whopping 13 GPM using 380 000 BTU. Install a system controller and you can connect as many as 24 units to the water system in your housing complex or resort. This will give you 316 gallons of water using 9.1 billion BTU. The NC380 is available in both natural and propane gas models. The units are compatible with a recirculation unit, which will ensure that the water stays warm in the pipes. The remote thermostat can accurately select any temperature between 100 and 140 Fahrenheit.

The heat exchanger is made from commercial grade copper with a 25% thicker wall than used on standard units. This durable product boasts a stainless-steel casing and ASME accreditation. This product is in a league of its own. It boasts an energy efficiency of 84% using propane and drops to 80% if natural gas is used. Mount this unit outside or inside using stainless steel venting. The manufacturer offers a five-year limited warranty on the NC380, but it must be installed by a licenced installer. The product is CSA, UPC, NSF, ASME, and Low NOx-compliant.

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Noritz NR981-SV-LP Indoor or Outdoor Tankless Water Heater

The NR981 is a large unit that is capable of heating water for any mid-sized home containing up to four showers, delivering water at 9.8 GPM. The unit has a quick-couple option that allows you to join two units to double the water output capacity. It boasts an energy factor of 0.88. The gas consumption runs between 16000 BTU and 199900 BTU.

The casing is made from durable steel with a polyester coating. The copper tubing used in the heat exchanger is 25% thicker than that used on standard models. Noritz has included several safety devices in the system including lightning protection, flame sensors, and freeze sensors. The heat exchanger has a 12-year limited warranty and the other components are covered for five years.

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Noritz – The Manufacturer

Noritz has been manufacturing quality water heating systems for more than 60 years. The company launched its first tankless system in 1981. It was the first-ever electronic water heater to hit the market. Noritz aims to supply the market with cost-effective, energy-efficient, and environmentally friendly water heating technologies. The designs are Japanese in origin. Noritz tankless water heaters are available anywhere in the USA and Canada.

Noritz believes in its products and covers the heat exchangers with a 12-year warranty for domestic use. All other components are covered for five years. Noritz has a comprehensive range of domestic and commercial water heaters that boast some advanced features. The company makes nearly all of their own components, outsourcing very little. Noritz’s non-condensing units use thicker copper walls for heat exchangers, which increases thermal efficiency and the unit’s overall lifespan.

Noritz tankless water heaters are some of the best made on the market, but when things go wrong, Noritz has made troubleshooting easy. An error message will appear on the digital display to let you know exactly what has gone wrong so that you can fix it. You can also find instructions on how to fix commonly occurring problems online.

Effective and Efficient

Eliminate cold-water problems in your household. With a tankless water system, you need never run out of hot water again and you’ll save on energy costs. You could also earn up to $300 in tax credits when you install an energy-efficient tankless heater.