Rinnai RHFE-431WTA Owner's Operation And Installation Manual page 20

SNOW AREAS
In areas subject to heavy snowfall, keep snow clear
of flue terminal at all times.
STANDARD INSTALLATION OF FLUE MANIFOLD.
Diagram below shows minimum clearances and
distances from obstructions.
Also check local regulations.
Wall
Side Clearances
Snow
Flammable
Non
Flammable
10"(250mm)
20"(500mm)
24"
(600mm)
Opposite
Wall
Floor
20"
(500mm)
Obstruction
FIT BACK COVERS (SIDES ONLY)
Fit back covers (sides only) as shown below.
Engage Lugs
Clearance in accordance with local installation
codes and the requirements of the gas supplier.
– 18 –
Secure With
Screws