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NCB500 System Boiler

The NCB500 system boiler is a perfect upgrade for your current central heating and hot water solution. The compact design makes it easy to fit into any kitchen or airing cupboard, allowing you to maximise all space in your home.

System boilers allow homeowners to store large quantities of hot water for later use, ideal for use with multiple showers, radiators and taps when required. You can also enjoy peace of mind with a 10-year warranty on every installation.

The NCB500 System Boiler has an easy set-up process and is compatible with the latest Navien Smart Controls, giving you full control of your heating system which can help keep bills down.

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

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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