HearthStone Bristol DX Owner's Manual page 19

Hearthstone Quality Home Heating Products, Inc.
All termination caps must be no less than 18"
(457mm) horizontally from any roof or vertical
surface. See Figure 18.
The termination must fall within the chart in
Figure 24.
The maximum vertical run is 35'
The minimum vent/air intake termination clearances
above the high side of an angled roof are as follows:
Roof Pitch Feet
Flat to 6/12 1
7/12 to 9/12 2
10/12 to 12/12 4
13/12 to 16/12 6
17/12 to 21/12 8
Figure 17 - Termination Cap clearances
Prefabricated & Fireplace Chimney
Installations
The Bristol 8762 is approved for use with direct vent
chimney conversion kits in masonry or prefabricated
solid fuel listed chimneys. The following installation
requirements must be followed:
The termination must fall within the chart shown
in Figure 24.
In a masonry chimney, a fireclay liner or listed
steel liner, must be present the entire length of
the chimney.
The maximum vertical length of vent is 35'.
The use of an existing chimney as an air intake is
not listed under the ANSI Z21.88-09-CSA 2.33-09
test methods; this installation has been tested and
Meters
approved by Intertek Testing Services with an
0.3
appropriate test.
0.6
jurisdiction must be consulted prior to proceeding
1.2
with this installation method. See examples below.
1.8
2.4
Figure 18 – Existing Chimney Venting Options
19
The liner must have an inside dimension or
diameter 6" or greater.
Prefabricated chimneys must be UL103 or ULC
S-629 listed and have a minimum INSIDE
diameter of 6". Prefabricated chimneys must be
listed for the specific manufacturer's conversion
kit.
The code authority having
Bristol DX Model 8762