Termination locations, Warning, A. vent termination minimum clearances – Heatiator GDST3831I User Manual

Page 21

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Heatilator • GDST3831I • 2127-900 Rev. L • 3/13

A. Vent Termination Minimum Clearances

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 6.1 Minimum Height From Roof To Lowest Discharge
Opening

* 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

6

6

Termination Locations

Fire 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 overheating and fi re.

WARNING

Gas, 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. and over

0 in. minimum

In a staggered installation with both gas and wood or fuel oil
terminations, the wood or fuel oil termination cap must be
higher than the gas termination cap.

Figure 6.2 Staggered Termination Caps

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