Heat & Glo • Escape-36DV • 2012-900 • Rev. AA • 04/0810
4
4 Termination Locations

A. Vent Termination Minimum Clearances

Fire Risk.
Explosion Risk.
Maintain vent clearance to combustibles as
specifi ed.
• Do not pack air space with insulation or other
materials.
Failure to keep insulation or other materials
away from vent pipe may cause fi re.
Roof Pitch H (Min.) Ft.
Flat to 6/12...........................................................1.0*
Over 6/12 to 7/12 .................................................1.25*
Over 7/12 to 8/12 .................................................1.5*
Over 8/12 to 9/12 .................................................2.0*
Over 9/12 to 10/12 ...............................................2.5
Over 10/12 to 11/12 .............................................3.25
Over 11/12 to 12/12 .............................................4.0
Over 12/12 to 14/12 .............................................5.0
Over 14/12 to 16/12 .............................................6.0
Over 16/12 to 18/12 .............................................7.0
Over 18/12 to 20/12 .............................................7.5
Over 20/12 to 21/12 .............................................8.0
Figure 4.1
Figure 4.2 Minimum height from roof to lowest discharge
opening

Measure horizontal clearances from this surface.

Measure vertical clearances from this surface.

Figure 4.3 Multiple Vertical Termination

Figure 4.2 specifi es minimum vent heights for various

pitched roofs.

(See Figure 4.4 for specifi c clearances)
* 3 foot minimum in snow regions
HORIZONTAL
OVERHANG
VERTICAL
WALL
GAS DIRECT VENT
TERMINATION CAP
12
X
ROOF PITCH
IS X/ 12
LOWEST
DISCHARGE
OPENING
2 FT.
MIN.
20 INCHES MIN.
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
C
A
GAS
TERMINATION
B
GAS, WOOD OR FUEL
OIL TERMINATION
WARNING
Gas
Termination Wood & Fuel Oil
Termination Comments
A6 in. 20 in. min. Horizontal distance between terminations
B20 in. 24 in. min. Distance to perpendicular wall
C18 in. 18 in. Vertical distance between terminations
Fire Risk.
Explosion Risk.
Inspect external vent cap regularly.
• Ensure no debris blocks cap.
• Combustible materials blocking cap may
ignite.
• Restricted air fl ow affects burner operation.
WARNING