Hearth and Home Technologies 820-0721 warranty Connection to a Metal PRE-FABRICATED Chimney

R 5700 ACT Wood Stove

CONNECTION TO A METAL PRE-FABRICATED CHIMNEY

When a metal prefabricated chimney is used, the manufacturer’s installation instructions must be followed precisely. You must also purchase (from the same manufacturer) and install the ceiling support package or wall pass-through and “T” section package, firestops (where needed), insulation shield, roof flashing, chimney cap, etc. Maintain the proper clearance to the structure as recommended by the manufacturer. This clearance is usually a minimum of 2” (51mm), although it may vary by manufacturer or for certain components.

There are basically two methods of metal chimney installation. One method is to install the chimney inside the residence through the ceiling and the roof (Figure 13A). Install an attic insulation shield to maintain the specified clearance to insulation. Insulation in this air space will cause a heat buildup which may ignite the ceiling joists.The other method is to install an exterior chimney that runs up the outside of the residence (Figure 13B). This method of installation requires at a minimum a wall pass-through device, a wall support package, insulated “T” section and roof flashing. The components illustrated may not look exactly like the system you purchase, but they demonstrate the basic components you will need for a proper and safe installation.

The chimney must be the required height above the roof or other obstruction for safety and proper draft operation. The chimney must be a minimum of 3’ (91cm) higher than the highest point where it passes through the roof, and at least 2’ (61cm) higher than the highest part of the roof or structure that is within 10’ (305cm) of the chimney, measured horizontally (2-10-3 Rule Figure on page 9).

IMPORTANT!

Follow the manufacturer’s installation instructions and maintain the manufacturer’s specified clearance distances.

			Listed
	Listed Cap		Chimney	Attic
				Insulation
			Combustible
Maintain 2" (51mm)	Storm Collar			Shield
			Ceiling
Clearance				Specified
			Joists
	Flashing			Clearance
			Chimney	Ceiling
Listed Chimney			Connector	Support
			To Stove
Ceiling Support			Combustible Wall
Chimney
Connector	*
		* refer to Clearances
	*		to Combustibles
Floor
Protector

FIGURE 13A - INTERIOR CHIMNEY

				Combustible Outside Wall
Maintain 2" (51mm)		Listed Cap	Listed	2" (51mm)
Clearance Through eave			Chimney Pipe	Clearance
			Chimney	Listed Chimney
			Connector
		Flashing
			To Stove	Insulated " T "
				Wall Support
			Trim Collar	Wall Spacer on
	*		on Inside
Combustible			Wall	Outside Wall
Ceiling			Insulated " T "
Chimney
Connector
	*
Floor		Combustible Wall
Protector
		*refer to Clearances to Combustibles

FIGURE 13B - EXTERIOR CHIMNEY

In Canada when using a factory-built chimney, make sure it is safety listed, Type UL 103 HT CLASS "A" or conforming to CAN/ULC-S629, STANDARD FOR 650°C FACTORY-BUILT CHIMNEYS.

September 1, 2008 250-7090E Page 13