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Navien NCB300 28kw Combi Boiler + Flue,
(5 Year Warranty)

**7 Day Delivery**

The NCB300 gas condensing combi boiler is our entry model, which offers the same hot water comfort, powerful heating and flexible installation options as larger models, but in a compact design. This combination of features makes the NCB300 gas boiler an excellent choice for smaller properties where exceptional levels of reliability and DHW performance are the priority.

  • ErP A+ energy efficiency rating for ultra-low running costs*
  • IPX5 rating provides protection from any water leaks
  • Smartphone compatible offering remote adjustments of heating and hot water systems
  • Smart weather forecasting and Geofencing maximise efficiencies and convenience
  • 5-year parts and labour warranty for complete peace of mind
  • Extended venting up to 8m
  • Stainless steel heat exchangers for optimum durability and long term efficiencies
  • Hydrogen-ready (20% blend) technology for future proofing
  • Flue Included


    Shower Rating Number of Showers 1
    Heat Output Heat output range @ 80/60° 24.0/4.2kw

    DHW output range 28.0/4.3kw
    DHW Flow Rate @ 25° Temp 16 L/Min
    DHW flow Rate @ 35° Temp 11.5 L/Min
    DHW flow Rate for Kitchen @ 45° Temp 9 L/Min
    Modulation TDR 7:1
    Flue Flue Size Coaxial Length 60/100
    Max Horizontal Coaxial Length 7m
    Max Vertical Coaxial Length  8m
    Weight Lift Weight  29kg
    Dimensions Width x depth x height 395 x 285 x 680
    ERP ErP Effeciency ErP A (93%)
    ErP effeciancy with Smart Plus x3 ErP A+ (98%)
    NOx NOx classification Class 6


    Regular price £595.00
    Regular price Sale price £595.00
    Sale Sold out
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