Navien NCB-CE Gas Condensing System Boiler

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Navien NCB-CE Gas Condensing System Boiler

Comprising four system boiler models, with outputs from 20 to 33kW, the NCB-CE A-rated gas condensing boilers deliver outstanding ErP efficiencies from a standalone unit. In addition to low NOx emissions (class 6), all NCB gas Combi boilers are water resistant to an IPX5 rating offering peace of mind, while each unit is easy to handle for simple, fast and cost-effective installation.
  • ErP A+ energy efficiency rating for ultra-low running costs*

  • Extended venting up to 20m allowing flexible installation

  • 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

  • 7-year parts and labour warranty for complete peace of mind

  • Stainless steel heat exchangers for optimum durability and long term efficiencies

  • 3-zone ready with Smart Plus control pack



NCB-20LHWE

NCB-24LHWE

NCB-28LHWE

NCB-33LHWE

Heat Output

Heat input range

20.0/4.2kW

24.0/4.2kW

29.0/5.1kW

34.0/4.0kW

Modulation (max/min)

1:10

1:10

1:10

1:10

Heat output range @ 80/60°C

19.5/3.9kW

23.4/3.9kW

28.3/4.9kW

33.2/3.8kW

Condensing heat output range @ 50/30°C

21.4/4.5kW

25.6/4.5kW

31.1/5.4kW

36.3/4.3kW

Full load efficiency at Max./Min. output @ 50/30°C (Condensing)

106.9/107.8kW

106.6/107.8kW

107.3/106.9kW

106.9/106.9kW

Max. heating operation pressure

2.5 bar

Max. heating temperature

90oC

Adjustable heating temperature range

40-90oC

Flue

Flue exhaust/Air intake system diameters

Coaxial Ø60/100 and Ø80/125–Dual duct Ø80/80

Max. horizontal coaxial length ø60/100

20m

Max. horizontal coaxial length ø80/125

68m

Weigh


38

42

Dimension


440 x 358 x 695mm

440 x 408 x 695mm

ErP Efficiency

ErP A (94%)

ErP Efficiency with Smart Plus (x3)

ErP A+ (98%)

NOx Classification

Class 6


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