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Hearth & Home Technologies • B36S-AU Installation Manual • 2563-980 • 10/19
A. Vent Termination Minimum Clearances
4
Termination Location and Vent Information
Fire Risk.
Maintain vent clearance to combustibles as
specified.
•
DO NOT
pack air space with insulation or other
materials.
Failure to keep insulation or other materials away
from vent pipe could cause overheating and fire.
WARNING
Figure 4.1 Minimum Height From Roof To Lowest Discharge
Opening
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
VERTICAL
WALL
TERMINATION
CAP
HORIZONTAL
OVERHANG
305 mm
X
ROOF PITCH
IS X/ 305 mm
LOWEST
DISCHARGE
OPENING
510 mm MIN.
610 mm MIN.
Angle
H (Min.) mm
0°-26.6° .......................................................... 500*
26.6°-30.3° .......................................................... 500*
30.3°-33.7° .......................................................... 500*
33.7°-36.9° .......................................................... 610*
36.9°-39.8° .......................................................... 760*
39.8°-42.5° .......................................................... 990
42.5°-45.0° ........................................................1 220
45.0°-49.4° ........................................................1 520
49.4°-53.1° ........................................................1 830
53.1°-56.3° ........................................................2 130
56.3°-59.0° ........................................................2 290
59.0°-60.3° ........................................................2 440
* H minimum may vary depending on regional
snowfall. Refer to local codes.
Figure 4.2 Staggered Termination Caps
Wood or Fuel Oil
Termination Cap
B
**Gas
Termination
Cap
A *
* If using decorative cap cover(s), this distance may need to be increased.
Refer to the installation instructions supplied with the decorative cap cover.
A
B
6 in. (minimum) up to 20 in.
152 mm/508 mm
18 in. minimum
457 mm
20 in. (508 mm) and over
0 in. (0 mm) minimum
** If two gas terminations are present, they may be level (B = 0 in. (0 mm)
provided A is a minimum of 6 in. (152 mm).