Vermont Casting 1910 Securing the Single-wall Connector to a Masonry Chimney, Above the Fireplace

Models: 1910 0968

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Vermont Castings Defiant

Chimney

Flue

 

Elbow

Flue

 

 

Inner

Slip Pipe

 

Standard

Thimble

 

Connector

 

Oval to

 

Round Adaptor

 

 

Flue Collar

ST492

Fig. 5 An exploded view of the chimney connection in a freestanding masonry installation.

Securing the Single-wall Connector to a Masonry Chimney

Both freestanding masonry chimneys and fireplace masonry chimneys may be used for your installation.

Freestanding Installations

If the chimney connector must pass through a combus- tible wall to reach the chimney, follow the recommen- dations in the Wall Pass-Through section that follows. The opening through the chimney wall to the flue

(the “breach”) must be lined with either a ceramic or metal cylinder, called the “thimble”, which is cemented securely in place. Most chimney breaches incorporate thimbles, but the fit must be snug and the joint between the thimble and the chimney wall must be cemented firmly.

A special piece called the “thimble sleeve,” slightly smaller in diameter than standard connectors and most thimbles, will ease the removal of the chimney connec- tor system for inspection and cleaning. (Fig. 6) Thimble sleeves should be available from your local dealer.

To install a thimble sleeve, slide it into the breach until it is flush with the inner flue wall. Don’t extend it into the actual flue passage, as this could interfere with the draft.

The thimble sleeve should protrude 1-2" (25-50

mm)into the room. Use furnace cement and thin gasketing to seal the sleeve in place in the thimble. Secure the chimney connector to the outer end of the sleeve with sheet metal screws.

Thimble

Sleeve

Flue

Chimney

Connector

Keep sleeve end flush with flue tile

ST243

Fig. 6 The thimble, made of either ceramic or metal, must be cemented securely in place.

Without a thimble, a suitable length of chimney connector can be extended through the breach to the inner face of the flue liner, and cemented securely in place. Additional pieces of connector are then attached with sheet metal screws.

Fireplace Installations

The chimney connector may be connected to the chimney above the fireplace opening.

Above the Fireplace

The Defiant may be connected to a chimney above a fireplace opening. In such installations, the stove stands on the hearth in front of the fireplace and the chimney connector rises from the stove top and then angles ninety degrees back into the chimney. The chimney liner should extend to the point at which the chimney connector enters the chimney. (Fig. 7)

Check These

Clearances *

*

 

Mantel

D E F I A N T

Seal

 

This Off

ST244a

Fig. 7 In this installation, the chimney connector attaches to the chimney above the fireplace opening.

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Vermont Casting 1910, 0968 Securing the Single-wall Connector to a Masonry Chimney, Freestanding Installations