
16 Hampton HG35-1 Direct Vent Freestanding Gas Stove
3) Withthepipeattachedtothestove,slidethe
stoveinto its correct location, and mark the
wall for a 241mm x 241mm (inside dimen-
sions)squarehole.Thecenterofthesquare
hole should line up with the centerline of
the horizontal pipe, as shown in diagram
3. Cut and frame the 241mm square hole
in the exterior wall where the flue will be
terminated. If the wall being penetrated is
constructed of non-combustible material,
i.e. masonry block or concrete, a 178mm
diameter hole is acceptable.
INSTALLATION
DURA-VENT FLUEING
COMPONENTS
The Simpson Dura-Vent Direct Vent System
offers a complete line of component parts for
installationofbothhorizontalandverticalinstalla-
tion.Manyitemsareofferedindecorativeblack,
aswellasgalvanizedfinish.Thegalvanizedpipe
andfittingsareusedforconcealedlocationssuch
as attics or where corrosion is a factor, such as
above the roof line. Decorative brass trim kits
are available for both wall thimbles and ceiling
support boxes.
Part # Description
971 Horiz.TerminationKitincludes:90oblack
elbow, wall thimble cover, horiz. square
terminationcap,24" blackpipe, 11"-14"
5/8" adjustable black pipe
970 BasicHoriz.TerminationKitincludes:90o
black elbow, wall thimble cover, horiz.
square term. cap
978 Vert.TerminationKitincludes0/12-6/12
pitch adjustable flashing, storm collar,
low profile term. cap
908B 6" Pipe Length-Black
907B 9" Pipe Length-Black
906 12" Pipe Length Galv.
906B 12" Pipe Length-Black
904 24" Pipe Length Galv.
904B 24" Pipe Length-Black
903 36" Pipe Length Galv.
903B 36" Pipe Length-Black
902 48" Pipe Length Galv.
902B 48" Pipe Length-Black
911B 11"-14 5/8" Adj. Pipe Length-Black
917B 17"- 24" Adj. Pipe Length Black
945 45O Elbow Galv.
945B 45OElbow-Black
945G 45O Elbow-Swivel Galv.
945BG 45OElbow-Swivel-Black
990 90O Elbow Galv.
990B 90OElbow-Black
990G 90O Elbow-Swivel Galv.
990BG 90OElbow-Swivel-Black
991 High Wind Term. Cap (Vertical)
980 Vertical Term. Cap
984 Horiz. Sq. Term. Cap
985 Horiz. Sq. High Wind Termination
Cap
982 Snorkel-14" Rise Term.Cap
981 Snorkel-36" Rise Term.Cap
940 Wall Thimble-Support/Box
941 Cathedral/Ceiling-Support/Box
3951 Brass Trim-WallThimble/Ceiling Sup-
port
963 Firestop Spacer
943 Flashing 0/12-6/12
943S Flashing 7/12-12/12
953 Storm Collar
950 Vinyl Siding Standoff
988 Wall Strap
942 Wall Thimble
Diagram 1:
Hint: Apply
silicone to
female end.
DURA-VENT
HORIZONTAL
INSTALLATIONS
1) Set the unit in its desired location. Check
to determine if wall studs or roof rafters are
in the way when the venting system is at-
tached. If this is the case, you may want to
adjust the location of the unit.
2) Direct Vent pipe and fittings
aredesigned with special
twist-lock connections to
connect the flueing sys-
tem to the appliance flue
outlet. A twist-lock appli-
ance adapter is installed
on the unit at the factory.
Assemble the
desiredcombi-
nation of pipe
andelbowsto
the appliance
b) Horizontalrunsoffluemustbesupported
everythreefeet.Wallstrapsareavailable
for this purpose.
Parts not supplied by Dura-Vent
946-506/P Vent Guard (Optional)
640-530 Riser Flue Terminal (Optional)
948-128 Vinyl Siding Shield for Riser
Flue Terminal
946-228 Horizontal Square Termination
Cap
You will require the following components with
yournew DirectVentFreestandingGasStove.
Please review your product to make sure you
haveeverythingyouneed.Intheeventthatyou
are missing any part, contact your dealer.
Note: These are the minimum pieces re-
quired. Other parts may be required
for your particular installation. See
above for a list of flue parts.
Ifinstallingterminationonasidingcoveredwall,
a vinyl siding standoff or furring strips can be
used in order to ensure that the termination is
not recessed into siding.
The vinyl siding standoff is required for walls
with vinyl siding.
Minimum components for a Dura-Vent
Horizontal Installation:
A) Dura-Vent Horizontal Termination Kit
B) Wall Thimble (required for combustible
walls)
Minimum components for a Dura-Vent
Vertical Termination:
D) Dura-Vent Vertical Termination Kit. See
above for pipe lengths.
adapter with pipe seams oriented towards
the wall or ceiling, as much out of view as
possible. The final positioning of the pipe
and 90oelbow assembly is determined by
the mounting orientation of the adapter on
the stove and twist-locked for a solid con-
nection.
Note:
a) Twist-lockprocedure:Fourindentations,
locatedonthefemaleendsofpipesand
fittings, are designed to slide straight
onto the male ends of adjacent pipes
and fittings, by orienting the four pipe
indentations so they match and slide in
to the four entry slots on the male ends
(diagram 1). Push the pipe sections
completely together, then twist-lock
one section clockwise approximately
one-quarter turn, until the two sections
arefullylocked.Thefemalelockinglugs
will not be visible from the outside on
the Black Pipe or fittings. They may be
located by examining the inside of the
femaleends.Applysealant"Mill-Pac"to
innerpipeandhightempsiliconesealant
to outer pipe on every twist-lock joint.