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Navien NCB-180 - Combi Boiler - 14k-150k BTU in - 93.5% AFUE - Nat Gas or LP

Your Price: $2,942.43
Retail Price:$5,099.00
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Part Number:NCB-180
  • Can use natural gas or propane gas
  • ½ " Gas Pipe Capable Up to 24'
  • Field Convertible Gas System
  • Dual Stainless Steel Heat Exchangers
  • 93.5% AFUE
  • SCH 40, 2" PVC Venting up to 60'
  • Integrated control

Application: Indoor; Gas Type: NG/LP; Min. BtuH Input: 14,000; Max. BtuH Input: 150,000; Hot Water @ 35°F Rise Capacity: 4.0 GPM; Hot Water @ 70°F Rise Capacity: 3.4 GPM; Width: 17"; Height: 28"; Depth: 12"; Wt. Lbs.: 84;

  • Super condensing efficiency
  • Dual stainless steel heat exchangers
  • SCH40, 2” PVC venting up to 60’
  • ½” Gas pipe up to 24’
  • Automatic water filling system
  • integrated controls
  • Data Field NCB-180
    Gas Input Space Heating 14,000-80,000 BTU/H
    Domestic Hot Water 14,000-150,000 BTU/H
    AFUE 95.0%
    Flow Rate (DHW) 77°F (43°C) Temp Rise 3.4 GPM (12.9 L/m)
    Dimensions 17"(W) x 28"(H) x 12"(D)
    Weight 74 lbs (34kg)
    Installation Type Indoor Wall-Hung
    Venting Type Forced Draft Direct Vent
    Ignition Electronic Ignition
    Water Pressure (Hydronic/DHW) 12-30 PSI / 15-150 PSI
    Natural Gas Supply Pressure (from source) 3.5"-10.5" WC
    Propane Gas Supply Pressure (from source) 8.0"-13.5" WC
    Natural Gas Manifold Pressure (min to max) -0.07" WC to -0.66” WC
    Propane Gas Manifold Pressure (min to max) -0.06" WC to -0.62" WC
    Minimum Flow Rate (DHW) 0.5 GPM (1.9 L/m)
    Connection Sizes Heating Supply/Return 1" NPT
    DHW Inlet/Outlet 3/4" NPT
    Gas Inlet 3/4" NPT
    Auto Feeder 1/2" NPT
    Condensate Outlet 1/2" NPT
    Power Supply Main Supply 120V AC, 60Hz
    Maximum Power Consumption 200W (up to 2 amperes)
    Materials Casing Cold Rolled Carbon Steel
    Heat Exchangers Primary/Secondary Heat Exchanger: Stainless Steel DHW Heat Exchanger: Stainless Steel
    Venting Exhaust 2” or 3" PVC, CPVC, Polypropylene 2” or 3" Special Gas Vent Type BH (Class II, A/B/C)
    Intake 2” or 3" PVC, CPVC, Polypropylene 2” or 3" Special Gas Vent Type BH (Class II, A/B/C)
    Vent Clearances 0" to Combustibles
    Safety Devices Flame Rod, APS, Gas Valve Operation Detector, Ignition Operation Detector, Water Temperature High Limit Switch, Exhaust Temperature High Limit Sensor

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