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Initial Installation
VENT PARTS:
This replace have been tested and certied for use with SIMPSON DURAVENT TYPE GS PIPE FOR GAS
STOVES. SELKIRK DIRECT-TEMP SYSTEM SECURITY CHIMNEY’S “SECURE VENT DIRECT VENT SYSTEM”
and SELKIRK “METALBESTOS MDV VENT SYSTEM” kits are available for horizontal venting. When using
Simpson Duravent, it is recommended that, before installation, a bead of RTV High Temperature Silicone
should be applied to each outer vent joint, and Mil-Pac to each inner joint. When planning an installation,
it will be necessary to select the proper length of vent pipe for the particular requirements.
When planning your installation, it will be necessary to select the proper length of vent pipe for your
particular requirements. It is important to note when passing through a wall, the maximum allowable wall
thickness is 10 inches (254 mm), 1” inches clearance to combustibles must be maintained.
A MINIMUM VERTICAL LENGTH OF 24” (610 mm) TO THE FIRST 90° ELBOW IS REQUIRED.
WITH THIS MINIMUM VERTICAL RISE, HORIZONTAL RUNS OF FROM 1 FT (305 mm) to 3 FT (915 mm)
ARE PERMITTED TO REACH THE OUTSIDE VENT TERMINATION.
BEFORE BEGINNING THE INSTALLATION TAKE CARE TO ENSURE AN APPROPRIATE OUTSIDE LOCATION
FOR THE VENT TERMINATION CAN BE ACCOMMODATED. FOLLOW THE VENT LENGTH DIAGRAM
PRECISELY.
VENTING TERMINALS CANNOT BE RECESSED INTO A WALL OR SIDING.
If extra elbows are being used, overall allowable length will be reduced by 3 ft (915 mm)
per additional elbow.
Table 2: Vent part numbers.
Simpson Duravent (SD), Selkirk (SEL), and Security Chimneys (SC), must state if galvanized or black wanted, PART NUMBERS:
SD SEL SC Description SD SEL SC Description
908 4DT-6 SV4L6 6” pipe length 911 11” to 14
5
/8” pipe, adjustable
907 4DT-9 9” pipe length 4DT-AJ 4” to 10” pipe , adjustable
906 4DT-12 SV4L12 12” pipe length SV4LA12 1” to 12” pipe , adjustable
904 4DT-24 SV4L24 24” pipe length 943 4DT-AF6 Flashing, 0/12 to 6/12 roof pitch
903 4DT-36 SV4L36 36” pipe length 943S 4DT-AF12 Flashing, 7/12 to 12/12 roof pitch
902 4DT-48 SV4L48 48” pipe length SV4FA Flashing, 1/12 to 7/12 roof pitch
945 4DT-EL45 SV4EBR45 45° elbow, black SV4FB Flashing, 8/12 to 12/12 roof pitch
990 4DT-EL90 SV4EBR90 90° elbow, black 943F SV4F Flat ashing
950 4DT-VS SV4VS Vinyl siding standoff/sheild 980 4DT-VC SV4CGV Vertical termination
942 4DT-WT SV4RSN Wall thimble 991 4DT-HVC High wind vertical termination
941 4DT-CSS SV4CSB Cathedral Support Box 984 4DT-HC SV4CHC Horizontal square termination
981 4DT-ST36 SV4STC36 36” Snorkel Termination 985 4DT-HHC High wind horizontal termination
953 4DT-SC SV4FC Storm collar 978 4DT-VKC SV0FAK Vertical termination kit
963 4DT-FS SV4BF Fire stop 970 4DT-HKA SV0SHK Horizontal termination kit
SD: Basic Kit, SEL: Kit A, SC: Standard Kit
988 4DT-WS/B SV4BM Wall strap/support/band
971 4DT-HKB SV0SHK2 Horizontal termination kit
SD: Kit A, SEL: Kit B, SC: Kit