Lochinvar – Noble Combination Gas Boiler/Space Heating Appliance

lochinvar boilers

NOBLE COMBINATION GAS BOILER/SPACE HEATING APPLIANCE

Delivers both dependable hot water and soothing space heating in a single appliance.

RAISING THE BAR IN COMBI BOILER DESIGN

Removing the front panel provides convenient access to the combustion system, control panel and key components. This simple-to-install-and-service combi boiler is making an impact on the industry. The unique fire tube heat exchanger design is what enables NOBLE to produce the results users deserve and have come to expect from Lochinvar.

  1. Adapter-Free Flue Connection
    Multi-material connector allows either PVC, CPVC, polypropylene or stainless steel connection directly to the appliance without adapters. NOBLE also has a built-in combustion analyzer port.
  2. Direct Venting Up to 100 Feet
    Offers five venting options for tremendous installation flexibility. It permits direct-vent air intake, and exhaust runs up to 100 equivalent feet using either PVC, CPVC, polypropylene or AL29-4C stainless steel vent pipe.
  3. Advanced Negative Regulation Technology
    Safely and reliably operates with supply gas pressure as low as 4 inches water column. Its negative regulation (neg/reg) technology eliminates mechanical dampers as it automatically adjusts fan speed to ensure the correct volume and mix of fuel and air throughout the firing range.
  4. Innovative Fire-Tube Heat Exchanger
    The fire tube design can produce a higher heat transfer coefficient than traditional fire tubes.
  5. Brazed Plate Heat Exchanger
    The stainless steel heat exchanger quickly transfers heat from the boiler system to the domestic water, satisfying DHW load.
  6. Water Connections for Easy Installation
    NPT water connections make installation easy, especially with our optional isolation valves.
Model NumberMax Input (MBH)Min Input (MBH)*AFUE %Heating Capacity MBHNet AHRI MBHABCDEFGGas Conn.Water Conn.Air InletVent SizeShip. Wt.
NKC110N11011951028932-1/2″17-1/4″18″14-3/4″2-3/4″6-1/2″2-3/4″1/2″1″3″3″139
NKC150N150159513912132-1/2″18-3/4″18″6-3/4″2-3/4″6-3/4″11-3/4″1/2″1″3″3″142
NKC199N199209518516132-1/2″18-3/4″18″5-1/2″2-3/4″6-3/4″11-1/2″1/2″1″3″3″159