NCB500 System Boiler For Installers

The Navien NCB500 system boiler is the ideal choice for installers working with homeowners who are seeking to upgrade their existing system boiler to a more powerful, reliable heating solution or want to have system boiler system for the property

The NCB500 delivers consistent high performance while maintaining a compact footprint – perfect for installation in kitchens or airing cupboards.

The NCB500 System Boiler has an easy set-up process and is compatible with the latest Navien Smart Controls, giving your customers full control of their heating system. With 10-year warranty for complete peace of mind.

  • Easy commission set-up wizard
  • LPG Conversion Kit included
  • Compatible with Navien Multikit
  • 3-zone ready with Smart Plus control pack
  • Compact dimensions for easy installation in a kitchen cupboard
  • Durable stainless steel heat exchangers
  • 10-Year Warranty

Technical Data

NCB500-15k NCB500-18k NCB500-24k NCB500-30k
Heat output Heat input range 15.5/2.7 18.6/3.2 24.7/4.3 31.0/4.6
Modulation (max/min) 6:1 6:1 6:1 7:1
Heat output range @ 80/60°C 15.0/2.6kW 18.0/3.1kW 24.0/4.2kW 30.0/4.5kW
Condensing heat output range @ 50/30°C 16.4/2.9kW 19.4/3.4kW 25.6/4.5kW 32.6/4.8kW
Full load efficiency at Max. output @ 50/30°C (Condensing) 105.9% 104.6% 106.5% 105.2%
Max. heating operation pressure 2.5 Bar
Max. heating temperature 90°C
Adjustable heating temperature range 40-90°C
Flue Flue Size Coaxial length Ø 60/100
Max. horizontal coaxial length ø60/100 8m
Max. vertical coaxial length Ø60/100 8m
Weight (Kg) 27 29 32
Dimensions 395 x 283 x 680mm
ErP Efficiency ErP A (93%)
ErP Efficiency with Smart Plus (x3) ErP A+ (98%)

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