Through the Fireplace, Wall Pass-Throughs

Encore Woodburning Stove

•The ﬁreplace damper must be sealed to prevent room air from escaping up the ﬂue. However, it must be possible to re-open the damper to inspect or clean the chimney.

	Chimney	*
	Connector Shields	*
		*
	* Check	Mantel
	These Clear-	Mantel
	These Clear-
	ances
		Seal this off
	ST244

Fig. 8 In this installation, the chimney connector is attached to the chimney above the ﬁreplace opening.

Through the Fireplace

If your ﬁreplace opening height is at least 26¹⁄₂" (675 mm), you may install an Encore through the opening using a “positive connection” kit, available from your local dealer. These positive connection kits ensure a tight ﬁt between the stove ﬂue collar and the chimney ﬂue. (Fig. 9)

Fireplace installations, whether connected to the ﬂue above or through the ﬁreplace opening, have special clearance requirements to adjacent trim and the mantel. You’ll ﬁnd the required safe clearances for Encore ﬁre- place installations on Page 12.

Floor protection requirements also apply to ﬁreplace installations. This information is on Page 10.

Wall Pass-Throughs

Whenever possible, design your installation so the con- nector does not pass through a combustible wall. If you are considering a wall pass-through in your installation, check with your building inspector before you begin.

Also, check with the chimney connector manufacturer for any speciﬁc requirements.

Accessories are available for use as wall pass- throughs. If using one of these, make sure it has been tested and listed for use as a wall pass-through.

Flexible Connector

Mantel Shield

Fireplace Adapter

Kit “Positive Con- nection”

ST245

Fig. 9 In this installation, the chimney connector enters the ﬁrepalce opening and then connects to the chimney.

In the United States, the National Fire Protection As- sociation (NFPA) has established guidelines for passing chimney connectors through combustible walls. Many building code inspectors follow these guidelines when approving installations.

Figure 10 shows one NFPA-recommended method. All combustible material in the wall is cut away from the single-wall connector to provide the required 12” (305mm) clearance. Any material used to close up the opening must be noncombustible.

Three other methods are also approved by the NFPA:

•Using a section of double-wall chimney with a 9” (229 mm) clearance to combustibles.

•Placing a section of chimney connector inside a ventilated thimble, which in turn is separated from combustibles by 6” (152 mm) of ﬁberglass insulating material.

•Placing a section of chimney connector inside a section of 9” (230 mm) diameter, solid-insulated, facto- ry-built chimney, with 2” (51 mm) of air space between the chimney section and combustibles.

In Canada, The Canadian Standards Association has established different guidelines. Figure 10 shows one method, in which all combustible material in the wall is cut away to provide the required 18” (457 mm) clear- ance for the connector. The resulting space must re- main empty. A ﬂush-mounted sheet metal cover may be used on one side only. If covers must be used on both sides, each cover must be mounted on noncombustible spacers at least 1” (25 mm) clear of the wall.

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