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FIGURE 7.36: CHIMNEY CHASE INSTALLATION

7) Chimney Chase Installation - A vertical 80/125mm vent system can be installed in an unused masonry chimney.

This installation is similar to other vertical installations with the following exceptions (Also see Figure 7.36):

a) The chimney chase elbow kit (PN230530) is used at the base of the chimney. This kit consists of a support elbow

and a mounting bracket. Slip the elbow over the M10 x 35 screw in the support bracket. Determine the desired

vertical location of the support elbow in the chimney and mark the location of the pin on the back of the support

bracket on the back wall of the chimney. Drill a 7/16”dia x 2-1/2” deep hole at this location to support the back

of the bracket. The front of the elbow mounting bracket is supported by the bottom of the opening into the

chimney or by an installer supplied bracket.

b) Construct a weather-tight ﬂat roof to cover the top of the old chimney. Install the vertical terminal through this

roof using the ﬂat roof ﬂashing.

WARNING

• Do not attempt to construct a vertical vent system inside a chimney that is used to vent a ﬁreplace or other

appliances.

• Do not attempt to construct a vertical vent system inside a chimney ﬂue adjacent to another ﬂue used by a ﬁreplace

or other appliances.