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Noritz NR83


Most Advanced Green Design: The NR83 demonstrates Noritz’s commitment to being the tankless leader. With the NR83 Noritz shows its dedication to reduce environmental burdens and atmospheric pollution.

The NR83-DVC is the best 180,000 btuh concentric model in the category with many industry-first features. Equipped with a commercial-grade heat exchanger and green Eco-Burner, the NR83 is the perfect mix of professional power and environmental consciousness.


Home Size

Southern climate: 2-3 baths
Northern climate: 1-2 baths

Indoor Unit Dimensions

23.6” (H) x 13.8” (W) x 9.4” (D)


49 lbs.

Gas Consumption

Min. 18,000 btuh
Max. 180,000 btuh

(NG & LP)

Natural Gas/Propane

Capacity Range

0.5-8.3 Gal./min.

Energy Factor

DVC: 0.82 (NG), 0.83 (LP)

Thermal Efficiency


Temperature Settings

100-140° F (in 5° F Intervals), 9 options