10
1.9 Vent and Combustion Air Inlet -
Options
Dependent on the type of burner fitted to your
heater it is possible to have configurations of
vent and combustion air inlet options to those
shown overleaf:
• Option 1
For vented products of combustion and no
ducted air please refer to Figure 8.e.
REFLECTOR
FLEXIBLE DUCT
HEAT EXCHANGER
4" O.D. HIGH TEMP.
4" O.D. PIPE
CLAMPS
MAX LENGTH = 25'-0" WITH 2-90° LONG RADIUS BENDS
90° BEND
INLET WITH
6"
SEAL JOINTS WITH
SILICONE OR DUCT TAPE
WALL
BIRD SCREEN
TERMINAL
36" MIN CENTERS
Figure 8.a Fresh Air Ducted Intake.
Figure 8.b Wall Terminal Intake Kit.
• Option 2
For ducted air and products of combustion to
ventilated area please refer to Figure 8.f.
• Option 3
For vented products of combustion and
ducted air via concentric pipe please refer to
Figure 8.g.