Instructions / Assembly

®
System1738 Installation Methods28
Air Intake
Distance above avg.
snow fall or grade
Ref: local code
requirements
System 1738
Roof Flashing
Roof
Clamp or Strap
(Field Supplied)
Exhaust
Air Intake
Exhaust
Concentric termination must
be a minimum of 10’
away from any parapet,
vertical wall or structure
System1738
Roof Flashin
g
Figure 20: Typical Concentric Vent Pitched Roof Termination
Figure 21: Typical Concentric Vent Flat Roof Termination
Multiple Concentric Vent Kit Spacing
For multiple horizontal and vertical concentric vent kit
installations, retain a minimum spacing of 12" between
the outside edges of each concentric vent kit ash
shown in Figures 22 and 23.
Combustion
Intake Air
1" Minimum
2" Maximum
Vent
Vent
12"
Minimum
System1738 Round Face Plate
System1738
Round Face Plate
Combustion
Intake Air
Vent
12" Minimum
System1738
Roof Flashing
System1738
Roof Flashing
Vent
Figure 22: Multiple Concentric Vent Terminations: HORIZONTAL Figure 23: Multiple Concentric Vent Terminations: VERTICAL
These guidelines are not appliance specific actions;
appliance manufacturers may supply spacing
dimension specific to each appliance. In this case the
manufacturer’s recommendations shall supersede those
described herein.