Heatiator GDST3831I owner manual Termination Locations, Vent Termination Minimum Clearances

6 Termination Locations

A. Vent Termination Minimum Clearances

WARNING

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 may cause overheating and fire.

		HORIZONTAL
		OVERHANG
2 FT.	20 INCHES MIN.	VERTICAL
MIN.
		WALL
	LOWEST
	DISCHARGE
	OPENING
GAS DIRECT VENT
TERMINATION CAP
		X
		12
		ROOF PITCH
		IS X/ 12
	H (MIN.) - MINIMUM HEIGHT FROM ROOF
	TO LOWEST DISCHARGE OPENING
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
* 3 foot minimum in snow regions
Figure 6.1 Minimum Height From Roof To Lowest Discharge
Opening

A	B
6 in. (minimum) up to 20 in.	18 in. minimum
152 mm/508 mm	457 mm
20 in. and over	0 in. minimum

Gas, Wood or Fuel Oil

Termination Cap

B

A *

Gas

Termination

Cap **

*If using decorative cap cover(s), this distance may need to be increased. Refer to the installation instructions supplied with the decorative cap cover.

**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

Heatilator • GDST3831I • 2127-900 Rev. K • 7/12 21