Vermont Casting Encore NC 1450 Through the Fireplace, Wall Pass-Throughs, 30002425

Encore 1450 Non-Catalytic 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 These	Mantel
Clearances
	Seal Damper
	to Air Flow
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" (675mm), you may install an Encore through the open- ing 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 and Figure 16.

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 fireplace 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” (229mm) clearance to combustibles.

•Placing a section of chimney connector inside a ventilated thimble, which in turn is separated from com- bustibles by 6” (152mm) of fiberglass insulating mate- rial.

•Placing a section of chimney connector inside a section of 9” (230mm) diameter, solid-insulated, factory- built chimney, with 2” (50mm) 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” (457mm) 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” (25mm) clear of the wall.

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