Dimensions - Navien NCB-20LHWE Installation & Operation Manual

2.5 Dimensions

The following diagrams show the dimensions of the boiler and the table lists the supply connections.
Overhead View
90 mm 130 mm
440 mm
A
Supply Connections
Description
A Flue exhaust/Air intake
B Space heating supply
C Gas supply inlet
D Space heating return
Bottom View
B C
285 mm
*NCB-20LHWE/23LHWE: 358 mm
NCB-28LHWE/33LHWE: 408 mm
Diameter
Ø60/100,
Ø80/125
22 mm
22 mm
22 mm
D
About the Boiler 15