The Noritz Legacy

Noritz has been an innovator in the water heating industry for over 60 years. We introduced the first modern, electronically controlled tankless water heater in 1981 and we remain the leader in energy savings and superior hot water delivery today.



Noritz completed its full condensing line by adding NRC83 (16,000 btuh – 157,000 btuh) unit.

Noritz America celebrates the tenth anniversary of its entry into the U.S. tankless water heating market! To celebrate, Noritz America Corporation unveils a 10-month contractor appreciation promotion designed to recognize and reward members of its ongoing PROCard Program, as well as to recruit additional professional installers to the group.


Noritz introduced its lowest btuh unit (120,000 btuh) – perfect for small-size homes – NR50 outdoor unit

Noritz introduced the DV->SV conversion kit, which converts the water heater from a direct vent system to a standard vent system, as part of the new condensing unit, NRC98 (16,000 btuh – 180,000 btuh). It vents up to 60+ feet with 3” or 4” PVC!


Noritz introduces its first LowNOx heater unit: NR83-DVC (18,000 btuh – 180,000 btuh)


Noritz introduces its second CONDENSING unit, the N-0842MC series. Features a built-in neutralizer and 3″ or 4″ PVC vent options.


Noritz introduces tankless industry’s highest performing concentric vent pipe unit, N-0751M-DVC.
Noritz Opens New York branch office with a beautiful tankless showroom on August 4, 2008.
Noritz America introduces its first CONDENSING tankless water heater, N-0841MC series.


Noritz America Corporation HQ relocates to a brand new 60,000 sq/ft facility in Fountain Valley, CA with the largest tankless showroom in the U.S. opens to public on May 7, 2007.

Noritz America Corporation opens a Chicago branch location with a tankless showroom on August 23, 2007.


1st tankless company in the world to offer ASME Certified commercial models.

Noritz America introduces N-063S-OD and N-069M-OD models.

Second U.S. regional branch opens in Dallas, TX


Addition of 3 more water heaters: a Residential Direct Vent and (2) Outdoor Recess Package models

Noritz America introduces its own Stainless Steel venting, the N-Vent line

First U.S. regional branch opens in Atlanta, GA


Noritz America adds 4 new tankless water heaters to its product line – the M and S-Series

Full line of services valves for tankless water heaters added to accessory line

Noritz America introduces the first Commercial Grade, Direct Vent tankless water heater in the industry


“Always Hot” slogan and promotion introduced in first nationwide advertising campaign.

PROCard promotional program launched

Relocated to current larger complex, which includes testing and large training facilities


Noritz America Corporation established in U.S.A. – Lake Forest, CA



Globalization: Growth of Noritz

2005 Australian Branch in Melbourne and European Branch In Düsseldorf Germany opened
2004 Established Noritz Electronics (HK) Technology Ltd.
2003 Business partnership with Honda
2002 Business partnership with TOTO
2001 Capital participation in Harman (a major kitchen appliance mfr.) making it a consolidated subsidiary
1997 Received ISO 14001 international environmental standard certification (1st in Japan for Gas device trade)
1996 Received ISO 9001 international quality standard certification
1994 Advanced tankless heater series using proportional control method and low NOx burner launched
1993 Shanghai Noritz Co. established in China


Innovation: Introduction of Instantaneous Heaters

1992 Advanced combination domestic and bath water heating unit launched
1990 Akashi head office factory completed with Central R & D & Comprehensive Training Centers
1989 Launched Estudio system kitchen – entered kitchen and bath market
1985 Listed on Tokyo Stock Exchange (TSE)1984 Noritz goes public – listed on Osaka Stock Exchange (OSE), New Noritz logo released for corporate identity
1981 1st modern, electronically controlled tankless water heater introduced
1980 1st Combination instantaneous heater launched (domestic and bath water)
1978 1st auto-off bathwater heater system launched
1977 Introduced 1st instantaneous water heater (storage type)


The Beginning: Introduction of Tankless Water Heaters

1970 Started sale of gas water heaters. Developed the industry’s first device to control heater power from inside the bathroom
1968 Company name changed to Noritz
1966 Introduction of 1st tankless water heater
1963 Launched first line of oil boilers
1962 Akashi Factory completed, in-house production began
1961 Started sale of gas bathwater heaters
1957 Company bonds issued – the first by a small enterprise in Japan
1956 Research center opened to engage in the development of gas bath boilers and furnaces
1951 Noritsu Bath Industry established in Kobe, Japan