Lennox Hearth VIS35 - Manual (Page 12)

1 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
v
ent
p
arts
l
ist
Direct vent pipe Security™ Secure Vent™ * may be used
with the Vintage™ gas stove. Please see the lists below
to verify the components available from each direct vent
pipe manufacturer. Snorkel terminations are available for
applications which may require vertical rise on the building
exterior. The components listed below come in a galvanized
finish. Most of the components are also available in a painted
black finish. Add a “B” to the end of the part number when
ordering if a black part is desired.
s
eCurity
™ s
eCure
v
ent
6-5/8”
x
4” p
ipe
Part Number Description
SV4LC 6” Pipe Length
SV4L12 12” Pipe Length
SV4L24 24” Pipe Length
SV4L36 36” Pipe Length
SV4L48 48” Pipe Length
SV4LA 6” Pipe, Adjustable
SV4LA12 12” Pipe, Adjustable
SV4FA Flashing, 1/12 to 6/12 Roof Pitch
SV4FB Flashing, 7/12 to 12/12 Roof Pitch
SV4RSM Wall Radiation Shield
SV4E46 45º Elbow
SV4E90 90º Elbow
SV4VS Vinyl Shield Protector
SV4FC Storm Collar
SV4CGV Vertical Termination Cap
SV4BF Firestop
SV4CHC Horizontal Termination Cap
SV4STC36 Snorkel Termination Cap (36”)
SV4STC14 Snorkel Termination Cap (14”)
SV4BM Wall Band
Simpson Dura-Vent GS 6-5/8”x 4” Pipe
Part Number Description
908 6” Pipe Length
907 9” Pipe Length
906 12” Pipe Length
904 24” Pipe Length
903 36” Pipe Length
902 48” Pipe Length
911 11” to 14-5/8” Pipe, Adjustable
942 Wall Thimble
940 Rnd Support Box/Wall Thimble Cover
941 Cathedral Ceiling Support Box
943 Flashing, 0/12 to 6/12 Roof Pitch
943S Flashing, 7/12 to 12/12 Roof Pitch
945 45º Elbow
990 90º Elbow
950 Vinyl Siding Standoff
953 Storm Collar
963 Ceiling Firestop
988 Wall Strap
981 Snorkel Termination (36”)
982 Snorkel Termination (14”)
984 Horizontal Termination Cap
985 Horizontal Termination Cap (High Wind)
980 Vertical Termination Cap
991 Vertical Termination Cap (High Wind)
h
orizontal
v
ent
i
nstallation
Venting terminals may not be recessed into a wall or
siding.
1. Set the unit in the desired location. Check whether or
not wall studs are in the way when the venting system is
attached. If wall studs are in the way, you may want to
adjust the location of the unit.
2. Any stove that is horizontally terminated and has a vertical
section of pipe off the top of the stove, that first section
of pipe must be a minimum of 18” long.
3. All horizontally terminated vent installations may only use
6-5/8”x 4” Security™ Secure Vent pipe*.
4. Assemble the desired combination of pipe and elbow(s)
to the appliance adapter with pipe seams facing down.
Offsetting the pipe seams as double seams in one place
will cause the outer pipe to take an oval shape.
5. When this pipe passes through a wall, a wall thimble
- Simpson #942 or Security™ #SV4RSM - is required.
The hole in the wall for the wall thimble should be 9-1/4”x
10-1/4”. If the wall being penetrated is constructed of non-
combustible material (i.e. masonry block or concrete), a
7” diameter hole is acceptable and a wall thimble is not
required.
6. Horizontal runs of vent pipe must be supported every 3
feet. Wall straps - Simpson #988 or Security™ #SV4BM
- are available for this purpose.
7. If the vent passes through a ceiling or floor, a firestop
- Simpson #963 or Security™ #SV4BF - is required.
8. Also note that venting terminals shall not be recessed
into a wall or siding. If installing the termination cap on
a wall covered with vinyl siding, a vinyl siding standoff
- Simpson #950 or Security™ #SV4VS - or furring strips
must be used to ensure that the termination cap is not
recessed into the siding.
9. The horizontal run of vent should have a 1/4” rise for every
12” of run toward the termination. Never allow the vent to
run downward. This could cause high temperatures and
may present the possibility of a fire.
10.If the wall being penetrated is constructed of noncom-
bustible material, such as masonry block or concrete,
an 7” diameter hole is acceptable and a wall thimble is
not required..
11. The location of the horizontal vent termination on an exte-
rior wall must meet all local and national building codes,
and must not be blocked or obstructed. For allowable
external vent termination locations (see page 16).
12. Allowable clearances from the vent pipe to combustible
materials must be maintained. See page 7 for these clear-
ances.
13. Do not locate the termination cap where it may be blocked
by shrubbery or snow.
* Other approved chimney brand is Simpson Dura-Vent DV-GS.