Navien NBH Series User Manual

11About the Boiler
1.5 Dimensions
The following diagrams show the dimensions of the boiler and the table lists the supply connections.
23.6" (600 mm)
Supply Connections
Description Diameter
A Air Intake 2 in
B Exhaust Gas Vent 2 in
C Air Vent Connection
3
/
4
in
D Rubber Grommet 1 in
E Space Heating Return 1 in
F Condensate Outlet
1
/
2
in
G Gas Connection
3
/
4
in
H Space Heating Supply 1 in
Overhead View
15.9” (405 mm)
A
B
4.5” (115 mm)
(77 mm)3” (67 mm)2.6”
(60 mm)2.3”
C
6.6” (170 mm)
17.3” (440 mm)
Supply Connections
15.8” (401 mm) 6” (152 mm)
2.3” (60 mm)
5.5” (141 mm)
D
FE
13.1” (335 mm)*
* NHB-055/080: 11.8” (300 mm)
H
G

Navien NBH Series Specifications

General

Brand	Navien
Model	NBH Series
Category	Boiler
Language	English