Noritz NH199-DV 111W Tankless Hydronic Boiler with Direct Vent

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Noritz NH199-DV Details
Noritz 111W Tankless Hydronic Boiler with Direct Vent

Presenting the NH Series NH199-DV Tankless Hydronic Boiler from Noritz Water Heaters. Noritz is the first tankless water heater manufacturer to introduce tankless hydronic boilers. This model provide quiet and constant heat to your home by providing hot water to panel radiators, baseboards, radiant flooring and forced hydro-air systems. This energy efficient, environmentally friendly water heater provides hot water whenever you need it. The Noritz water heater is capable of offering nine temperature settings of endless hot water for hydronic heating. This tankless hydronic boiler is significantly smaller in size, weighing in at only 66 pounds vs conventional boilers' which typically weigh more than 300 pounds, giving your home more space to enjoy.


  • Safety Devices: Flame Rod, Thermal Fuse, Lightning Protection Device (ZNR), Overheat Prevention Device, Freezing Prevention Device, Fan Rotation Detector, Boil-dry Safety Device, Boil-dry Protection Device, Overcurrent Protection Device
  • Fully modulating burner - Automatically adjusts burner level accordingly
  • Dual flame burner - Noritz exclusive! Minimizes temperature fluctuations
  • WARNING!!! PVC cannot be used for venting. Use only Category III (stainless steel venting)


  • Isolation valves (IK-WV-6)
NH199-DV Specifications

Air Supply/Exhaust Type: Direct Vent / Sealed Combustion
Amount of boiler water used: 4-17 GPM (bypass minimum-flow rate: 2.5GPM)
Casing Materials: Zincified Steel Plate/Polyester Coating
Centigrade (Degree): 60-80C (In 5C intervals), 83C (6 Options)
Color: White
Consumption: 111W
Depth: 9-2/5
Flue Collar Materials: Stainless Steel
Fuel Type: Liquid Propane, Natural Gas
Gas Inlet: 3/4"
Heat Exchanger Materials: Copper Sheeting, Copper Tubing
Heating method Type: Closed type hot-water circulation method
Height: 24-1/5
Ignition: Direct Ignition
Installation Type: Indoor, Wall Mounted
Max Gas Consumption: 199,900 Btu/Hr
Min Gas Consumption: 55,500 Btu/Hr
Operating Pressure: 15-150 psi
Return: 1"
Safety valve setting pressure: 30 psi
Standard Output: 45,500-163,100 BTU/Hr
Supply: 1"
Supply: 120 VAC (60Hz)
Temperature Settings Fahrenheit (Degree): 140-170F (In 5F intervals), 176, 180F (9 Options)
Thermal Efficiency: 83.0%
Water Holding Capacity: 0.4 Gallon
Weight: 65.3
Width: 18-1/3

NH199-DV is listed under the following SKUs

Liquid Propane
Natural Gas

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