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Noritz Tankless Water Heater Technology

Noritz Tankless Hot Water Heaters have the world's most advanced tankless hot water heater technology. Noritz is the world's most advanced tankless technology manufacturer.


If you were to approach any professional who is familiar with tankless gas water heaters, and ask them what the main components of a tankless water heater were, they will tell you it's the heat exchanger and the burner. This is basically the heart of tankless water heaters. The durability, efficiency, and performance essentially depend on the technology and quality levels of these two components.


For years, tankless gas water heaters have utilized the single flame burner technology. As the leader in tankless technology, Noritz has recently introduced the dual flame burner. No other tankless water heater manufacturer offers this technology. The dual flame burner actually has a second row of burners which burns the escaped gas from the first row of burners, resulting in an increased level of efficiency, stabilizing temperature fluctuations and boosting the performance of the flow rate. This is the latest in tankless technology.

Competitors' single flame burner vs. Noritz dual-flame burner:

Technical Explanation:


The heat exchanger is where the most strain and stress occurs. This is what is being heated by the burner to produce the hot water. If this component's quality and durability is compromised, cracks and leaks may form over time due to extreme temperature stress. That is why Noritz designs the heat exchangers using a 25% thicker commercial grade copper piping. The heater's durability depends on this and we want to make sure our customers are buying the very best quality available on the market today.

Noritz heat exchanger:   


Over 93% efficient, delivering more than 11 GPM! Noritz is proud to introduce our most efficient tankless hot water heaters, the next generation in tankless technology - condensing heaters. This innovation utilizes a dual heat exchanger, a fusion of stainless steel and copper heat exchangers. The 100% stainless steel component captures the residual heat from the exhaust temperature to preheat the incoming water before it runs through the main copper heat exchanger. This results in dramatic reduction of carbon dioxide and increases the heater's efficiency level to over 93%. The Noritz NRC111 and NCC199 series - compare the specifications to our competition.


Zero-Clearance, Direct Vent, Flexible Installation As the leader in tankless technology, our goal is to provide the best performing tankless heaters on the market. Our new concentric style venting allows more flexibility to where the heater can be installed. This is due to the zero clearance venting, which means the heater can be installed virtually anywhere since the vent pipe's temperature is cool to touch. Add this feature to the highest performing unit in its class, you'll end up with the best concentric heater on the market today. The Noritz NR98-DVC series - compare the specifications to our competition.


When it comes to quality, Noritz takes no short cuts in producing the highest quality tankless water heaters. Unlike other manufacturers, we do not outsource the main components of our heaters. We manufacture nearly 100% of the parts that go into our heaters. We even make the heat exchanger's copper tubing from raw copper. This allows Noritz to have the highest quality control of all the heater’s parts and components. The high level of quality is an attribute of TPS Just-In-Time (JIT) Production system. Noritz is the only tankless manufacturer to implement the JIT Production system. Only one company per industry is granted permission to use this super-efficient, quality control production system in Japan. How efficient is this manufacturing system? We can build and ship out heaters in the afternoon from orders that were processed in the morning.


Noritz is always at the forefront in tankless technology. We were the first in the world to offer ASME accredited tankless water heaters. We have the highest flow rates vs other tankless water heaters in a comparable classes. We have the largest model selection, as well as being the only tankless manufacturer to offer boilers for heating applications. We offer true commercial grade copper (25% thicker) piping in our heat exchangers. We have the tankless industry's first dual flame burners, which maximizes output, provides temperature stability, and maintains low emissions. We offer the largest multi-system capacity set-up available, 24 units @ 9.1 million btus producing 316.8 GPM.


When you compare our heaters in the same class with other tankless water heater manufacturers, you'll quickly learn that Noritz is the better performing water heater hands down. Because of the Noritz technology advantage, you will get a higher performance heater. A lot of our competitors market their heaters based on the best scenario, and therefore state their heaters at its highest flow rate. Our heaters are rated on a more realistic scenario, so when you start comparing the maximum performance capacity, you'll find that Noritz has the best value based on performance.


Noritz prides itself by offering our customers professional grade tankless water heaters, which means we only sell through professional wholesale distribution centers, not through the retail channel. Since Noritz tankless units are high-capacity performance water heaters, we need to ensure that our units will be handled by professional installers for proper installation and warranty coverage.

Consumer Brochure

*Noritz America does not offer fuel oil or electric tankless water heaters. Please contact your local installer for complete installation pricing
*Use the Publication above to find a myriad of information on the Science behind Noritz. You can scroll through the pages above, or if you need to enlarge the publication, click on it anywhere to have it open in full screen mode, then click as many times as needed to zoom in.
Noritz is the world's most advanced tankless water heater manufacturer.

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