Product Information; Product Information Items - Navien NHB-055 Service Manual

2. Product Information

2.1 Product Information Items

Navien features the NHB Series gas boiler. This appliance is fully
modulating and provides central heating. Depending on the heat
capacity, each model is divided into four types; 055, 080, 110 and
150.
Model
NHB-055
NHB-080
NHB-110
NHB-150
A separate heating expansion vessel is required.
Internal freeze protection and an electronic control unit are
incorporated within the boiler. Any standalone room thermostat or
set of contacts can be used with the boiler.
Version 1.0
Maximum Space Heating Input
55,000 Btu / h
80,000 Btu / h
110,000 Btu / h
150,000 Btu / h
NHB Service Manual 13