Vermont Casting 2463 Prefabricated Chimneys, Chimney Height, Chimney Size, Two Types of Connector

Prefabricated Chimneys

A prefabricated metal chimney must be one tested and listed for use with solid-fuel burning appliances. The applicable standard is BS4543 Factory-made insulated chimneys, Part 1: 1990 Methods of test for factory chimneys with stainless steel flue linings for use with solid fuel fired appliances.

Chimney Height

For proper draft and good performance, the chimney should extend at least 16’ (5 m) above the flue collar of the stove.

The chimney must also extend at least 3’ (914 mm) above the highest point where it passes through a roof, and at least 2’ (610 mm) higher than any portion of a

building within 10’ (3 m). (Fig. 2)

DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE.

0 TO 10'
2' MIN. 3'	0 TO 10'
MIN.
	2' MIN. 3'
	MIN.

Reference

Point

AC246

Fig. 3 The 2/3/10 rule for chimneys.

Chimney Size

The Model 2463 heater should be vented into a ma- sonry chimney with a square flue with nominal flue size of 8” x 8” (203 x 203 mm), or a round flue with nominal flue size of 6” (152 mm).

Chimney liners larger than 8” x 12” (203 x 305 mm) may promote rapid cooling of smoke and reduction in draft, especially if they are located outside the home. These large chimneys may need to be insulated or have their flues relined for proper stove performance.

Accessories to help make the connection between stainless steel chimney liners and the stove are avail-

able through your local dealer.

Dutchwest

Guidelines for Installing the Chimney Connector

The chimney connector is the single-wall pipe, or listed and approved double-wall pipe that connects the stove to the chimney. The chimney itself is a masonry or prefabricated structure that encloses the flue. Chimney connectors are used only to make the connection from the stove to the chimney.

Do not pass the chimney connector through a combus- tible wall or ceiling, or through an attic, a closet or any similar concealed space. If passage through a combus- tible wall is unavoidable, follow the recommendations in the following section on Wall Pass-Throughs. Keep the passage as short and direct as possible, with no more than one 45 degree turn. The maximum length fo a

horizontal run should not exceed 6” (152 mm)

Two Types of Connector

You may use either a single-wall steel connector of the size and gauge described below, or a listed and ap- proved double-wall connector.

Single-Wall Connector

The single-wall chimney connector should be made of 24 gauge or heavier steel, and must have a minimum internal diameter of 6” (152 mm) for model 2463. The run of single-wall connector should be no more than 8’ (2.4 m) long.

Install single-wall chimney connector not less than 18” (457 mm) from the ceiling.

In cathedral ceiling installations, extend the prefabricat- ed chimney downward to within 8’ (2.4 m) of the stove. The entire chimney connector should be exposed and accessible for inspection and cleaning.

Chimney	Flue Liner
Elbow	Flue
	Thimble

Slip Pipe

Standard Connector

Flue Collar

Floor Protector

ST418

Fig. 4 Sections of a steel chimney connector are fastened together with screws to connect the stove to the chimney.

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