Lennox Hearth 1003C operation manual tration, Notes

INSTALLATION - Combustible Wall Chimney Connector Pass-Throughs

A

Min. 12 in. (304.8mm)

to Combustibles

Min. Chimney Clearance to Brick & Combustibles – 2 in. (50.8mm)

	Min. Clearance 12 in.
Flue	(304.8mm) of Brick
Chimney	Chimney
	Connector
	Fire Clay
	Liner

Method A. 12” (304.8 mm) Clearance to Combustible Wall Mem- ber: Using a minimum thickness 3.5” (89 mm) brick and a 5/8” (15.9 mm) minimum wall thickness clay liner, construct a wall pass-through. The clay liner must conform to ASTM C315 (Stan- dard Specification for Clay Fire Linings) or its equivalent. Keep a minimum of 12” (304.8 mm) of brick masonry between the clay liner and wall combustibles. The clay liner shall run from the brick masonry outer surface to the inner surface of the chimney flue liner but not past the inner surface. Firmly grout or cement the clay liner in place to the chimney flue liner.

B	Min. Chimney Clearance from Masonry to Sheet Steel				Method B. 9” (228.6 mm) Clearance to Combustible Wall Member:
					Using a 6” (152.4 mm) inside diameter, listed, factory-built Solid-
	Supports & Combustibles – 2 in. (50.8mm)
		Nonsoluble		Min. Clearance	Pak chimney section with insulation of 1” (25.4 mm) or more, build
		Refractory		9 in. (228.6mm)	a wall pass-through with a minimum 9” (228.6 mm) air space be-
	Factory Built	Cement		Chimney	tween the outer wall of the chimney length and wall combustibles.
	Chimney Length			Connector	Use sheet metal supports fastened securely to wall surfaces on all
	Chimney Length				sides, to maintain the 9” (228.6 mm) air space. When fastening
	Flush with In-			Use Chimney
	side of Flue			Mfrs. Parts to	supports to chimney length, do not penetrate the chimney liner
	Air Space – 9 in.		Chimney Flue	Attach Connec-	(the inside wall of the Solid-Pak chimney). The inner end of the
	(228.6mm) Min.			tor Securely	Solid-Pak chimney section shall be flush with the inside of the ma-
				Solid-Insulated
			Masonry		sonry chimney flue, and sealed with a non-water soluble refractory
				Listed Factory-	cement. Use this cement to also seal to the brick masonry pene-
			Chimney	Built Chimney
			Sheet Steel Supports Length		tration.

C	Min. Chimney Clearance from Masonry to Sheet Steel
	Supports & Combustibles – 2 in. (50.8mm)
			2 Air Channels, Each 1
			in. (25.4 mm)
		Flue	Chimney
			Connector
		Chimney
2 Ventilated Air			Fiber Insulation
			Min. 6 in.
			(152.4mm) glass
Channels, Each
1 in. (25.4 mm)		Masonry	Sheet Steel Supports
Construction of
Sheet Steel		Chimney
		Min. Chimney Clearance
D
		from Masonry to Sheet
		Steel Supports & Com-
		bustibles – 2 in.	Min. Clearance
		(50 8 )
	Sheet Steel		2 in. (50.8 mm)
	Supports		1 in. (25.4 mm)
	Chimney
			Air Space to
	Section		Chimney
			Length

Chimney

Connector

Chimney

Method C. 6” (152.4 mm) Clearance to Combustible Wall Mem- ber: Starting with a minimum 24 gage (.024” [.61 mm]) 6” (152.4

mm)metal chimney connector, and a minimum 24 gage ventilated wall thimble which has two air channels of 1” (25.4 mm) each, construct a wall pass-through. There shall be a minimum 6” (152.4) mm separation area containing fiberglass insulation, from the outer surface of the wall thimble to wall combustibles. Support the wall thimble, and cover its opening with a 24-gage minimum sheet metal support. Maintain the 6” (152.4 mm) space. There should also be a support sized to fit and hold the metal chimney connector. See that the supports are fastened securely to wall surfaces on all sides. Make sure fasteners used to secure the metal chimney connector do not penetrate chimney flue liner.

Method D. 2” (50.8 mm) Clearance to Combustible Wall Member:

Start with a solid-pak listed factory built chimney section at least 12” (304 mm) long, with insulation of 1” (25.4 mm) or more, and an inside diameter of 8” (2 inches [51 mm] larger than the 6” [152.4 mm] chimney connector). Use this as a pass-through for a mini- mum 24-gage single wall steel chimney connector. Keep solid-pak section concentric with and spaced 1” (25.4 mm) off the chimney connector by way of sheet metal support plates at both ends of chimney section. Cover opening with and support chimney sec-

Air Space – 2 in.

Connector

tion on both sides with 24 gage minimum sheet metal supports.

(50.8mm) Min.Chimney

Masonry Sheet Length

Chimney Steel

Supports

See that the supports are fastened securely to wall surfaces on all sides. Make sure fasteners used to secure chimney section do not penetrate chimney flue liner.

NOTES:

1.Connectors to a masonry chimney, excepting method B, shall extend in one continuous section through the wall pass-through system and the chimney wall, to but not past the inner flue liner face.

2.A chimney connector shall not pass through an attic or roof space, closet or similar concealed space, or a floor, or ceiling.

3.Where passage through a wall, or partition of combustible construction is desired, the installation shall conform to CAN/CSA-B365.

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