Hearth and Home Technologies CD4236MLR 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
24 in. min.	20 in.
	(508 mm)
(610 mm)		Vertical
	Lowest
		wall
	Discharge
Termination	Opening
Cap
Storm Collar		X
		12
Roof
Flashing		Roof Pitch
		is X / 12

H (min.) - Minimum height from roof to lowest discharge opening.

Roof Pitch	H (Min.) Ft.		Roof Pitch	H (Min.) Ft.
Flat to 6/12		1.0*	Over 11/12 to 12/12		4.0
Over 6/12 to 7/12		1.25*	Over 12/12 to 14/12		5.0
Over 7/12 to 8/12		1.5*	Over 14/12 to 16/12		6.0
Over 8/12 to 9/12		2.0*	Over 16/12 to 18/12		7.0
Over 9/12 to 10/12		2.5	Over 18/12 to 20/12		7.5
Over 10/12 to 11/12		3.25	Over 20/12 to 21/12		8.0
	* 3 ft. minimum in snow regions

Direct Vent Gas, Wood or Fuel

Oil Termination

20 in.

		A	(508 mm)
18 in.			(minimum) to
			Perpendicular
(457 mm)			Wall
	B		(DV only)
Gas
Termination

Termination Caps Staggered Height

A	Gas Termination	Wood or Fuel Oil Termination
B	6 in. (152 mm) min.	20 in. (508 mm) min.

Figure 6.2 Staggered Termination Caps

Direct Vent Gas, Wood or Fuel

Oil Termination

Wood, Gas or
Fuel Oil					20 in.
Termination
				(508 mm)
			(minimum) to
	20 in. min. *		Perpendicular
					Wall
		(508 mm)
				(DV only)

Termination Caps Same Height

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

Figure 6.3 Leveled Termination Caps

Figure 6.1 Minimum Height From Roof To Lowest Discharge Opening

20 Heatilator • Caliber Mesh CD Series-SIT Valve • 4040-849 Rev J • 06/08