Installation Preparation - MHSC SSTB11 Installation, Operation And Maintenance Manual

INSTALLATION PREPARATION

Survey the planned location for the fireplace for overhead plumbing or electrical wires, etc., that might complicate the
installation or endanger persons installing or cleaning the chimney. Avoid a location where the chimney cap will be near
abrupt changes in the roof shape, nearby wall or embankments, under or near trees or above the roof of a single story
wing of a two story building as shown by Figure 6. All these conditions can cause turbulence or pressure conditions
that can cause poor chimney draft and smoke spillage from the fireplace opening. Elbows may be used to offset the
chimney to avoid obstructions or to locate the chimney cap in a preferred location. Refer to the sections of this manual
pertaining to chimney offsets for instructions on proper elbow use. Poor installation or location of the chimney cap and/or
components can cause wind blown rain to enter the chimney.
Be sure the selected location will allow a 17" square combustible material-free space for the chimney to pass through.
If the chimney is to pass through living or storage spaces, be sure there is adequate space to enclose the chimney to
avoid personal contact with, or damage to, the chimney.
Figure 5
Single Story Installation with Attic Space
Chimney Cap
Storm Collar
Flashing
13' Min.
17"
Square
Opening
in Joist
Preferred Location
87D0174
FP1882
chimney location
8/08
Flue Outlet Height
3' Min. or 2' Above
Any Point Within 10'
Refer to Table 1
for Roof Open-
ing Size
Firestop Spacer (2" Air
Space Clearance to
Combustibles)
"11CF" Series Chim-
ney Components
2" Min. Clearance to
Combustibles
Figure 6
Poor Location
FP1881
single story install
8/08
FP1882
Chimney Cap
Attic Space
Storm Collar
(Included with cap)
Max.
Installation
Height - 86
ft. Chimney
FP1881
SSTB11 Woodburning Fireplace
Figure 7
Multiple Story Installation
Flue Outlet Height
Flashing
Refer to Table 1
for Roof Opening
Size
17" Square
Opening in
Joist
17" Square
Opening in
Joist
17" Square
Opening in
Joist
FP1883
multistory install
8/08
3 ft. Min.
Attic Space
Firestop
Spacer (2"
Air Space
Third Floor
Clearance to
Combustibles)
Area
2" Clearance to
Combustibles (Min.)
Firestop
Spacer (2"
Second
Air Space
Floor Area
Clearance to
Combustibles)
Firestop
Spacer (2"
Air Space
First Floor
Clearance to
Combus-
Area
tibles)
FP1883
9