Dimensions - Navien NHB-055 Service Manual

3.2 Dimensions

The following diagrams show the dimensions of the boiler and the table lists the supply connections.
Overhead View
A
15.9" (405 mm)
6.6" (170 mm)
4.5" (115 mm)
18 NHB Service Manual
B C
17.3" (440 mm)
Supply Connections
Description
A Air Intake
B Exhaust Gas Vent
C Air Vent Connection
D Rubber Grommet
E Space Heating Return
F Condensate Outlet
G Gas Connection
H Space Heating Supply
Supply Connections
D E
15.8" (401 mm)
* NHB-055/080: 11.8" (300 mm)
Diameter
2 in
2 in
/ in
3
4
1 in
1 in
/ in
1
2
/ in
3
4
1 in
F G H
6" (152 mm)
Version 1.0