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Noritz Tankless Boiler
Noritz NH199-DV-NG
199,900 BTU, Tankless Water Boiler, 82.7% Efficiency, Direct Ignition, Natural Gas

Product has been discontinued.
Please call us for a suitable alternate product.

Mon - Fri 8:30am - 5:00pm Central

Noritz is the first tankless water heater manufacturer to introduce tankless hydronic boilers. The NH Series consists of two models, the NH199-DV and NH150-DV. Both of these direct vent models provide quiet and constant heat to your home by providing hot water to applications such as cast-iron radiators and baseboards. These units are space saving, energy efficient, and environmentally friendly. They are capable of offering nine temperature settings and are fully-modulating, meaning energy is used efficiently. These tankless hydronic boilers are significantly smaller in size, weighing in at only 66 pounds compared to conventional boilers which typically weigh more than 300 pounds, giving your home more space to enjoy.

Standard Features:

  • 82.7% Efficiency
  • Thicker, commercial-grade copper heat exchanger
  • Integrated priority controls for indirect domestic water heating and hydronic heating systems
  • Reduced pressure loss through the heat exchanger
  • Direct ignition
  • Fully modulating burner
  • Dual flame burner minimizes temperature fluctuations
  • 140° - 180°F temperature setting
  • Direct vent

Heating Capacity
199900 BTU 

Effective Heating Capacity (BTUs)

Water Capacity
0.4 Gallons 

Efficiency (% AFUE)
82.7 % 

Efficiency Range
80 - 89%  

Ignition Type
Direct Ignition  

Piping Connections - Water
1 Inch(es) 

Dual Pipe Vent Diameter
4 inches 

Product Weight
65 lbs 

18 3/10 Inches 

9 2/5 Inches 

24 1/5 Inches 

120 Volts 

60 Hz 

Heat Exchanger Warranty
10 Years  

Parts Warranty
1 Years 
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(800) 865-5931
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  Mailing Address
1901 N. Clybourn Avenue
Suite 200
Chicago, IL 60614
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