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Overview
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 an excellent choice for smaller properties where exceptional levels of reliability and DHW performance are the priority.
Although this boiler is a pared down version of its larger cousins, it still achieves exceptional levels of hot water performance, due to its high-quality construction and high-tech components. There are three sizes of NCB300 available, with DHW outputs of 28kW, 37kW and 41kW to choose from. Plus, each unit benefits from an LCD control panel for comprehensive management.
- Stainless steel heat exchangers for optimum durability and long-term efficiencies
- 5 Year warranty out of the box
- Turndown ratio of 6:1 gives great modulation range
- Compact dimensions for easy cupboard fit
- Lightweight design for easy installation
- Easy to use display panel
- Hydrogen-ready (20% blend) technology for future proofing
- Compatible with Navien Smart Service Toolkit
- ErP A+ energy efficiency rating when used with 3 Smart Plus room thermostats (multizone heating)
Technical specification
Years Guaranteed5Width30.52 mmTypeNG / LPG Boiler PkSolar CompatibleYSEDBUK SAP 2009 Rating88.9Nox Class6Noise Level52Maximum Vertical Flue 100mm8mMaximum Horizontal Flue 100mm7mIncludesHorizontal FlueHeight30.52 mmHeat Output28 kWFuel TypeNatural Gas / LPGExternal or InternalInternalERP RatingADepth283 mmDHW Output Min and Max4.3 / 28.0DHW Output28DHW Flow Rate at 35 Degree Rise11.5CH Condensing Max Output25.6Boiler TypeCombiRange DescriptionNCB300Manufacturer Model NoNAVIENPK5Brand NameNavien
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