Enviro EG 33 - Manual (Page 9)

These models have been tested and certified for use with SIMPSON DURAVENT DIRECT VENT TYPE “GS” PIPE FOR GAS
STOVES. Kits are available for vertical venting or horizontal venting. It is recommended that a bead of RTV High
Temperature Silicone be applied to each outer vent joint and MILPAC to each inner joint before installation.
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. per additional elbow
Simpson Duravent Parts
Number
Description
908B
6” Pipe Length, Black
907B 9” Pipe Length, Black
906 (B) 12” Pipe Length, (Black)
904 (B) 24” Pipe Length, (Black)
903 (B) 36” Pipe Length, (Black)
902 (B) 48” Pipe Length, (Black)
911 (B) 11” to 14-5/8” Pipe , Adjustable, Black
945 (B) 45 ° Elbow, (Black)
990 (B) 90 ° Elbow, (Black)
940 Round Support / Wall Thimble Cover
941 Cathedral Ceiling Support Box
943 Flashing, 0/12 to 6/12 Roof Pitch
Number Description
943S
Flashing, 7/12 to 12/12 Roof Pitch
953 Storm Collar
963 Ceiling Firestop
988 Wall Strap
984 Horizontal Square Termination
985 High Wind Horizontal Termination
980 Vertical Termination
991 High Wind Vertical Termination
950 Vinyl Siding Standoff
942 Wall Thimble
971 Horizontal Termination Kit A
Add suffix (B) for optional black parts as listed.
PLANNING YOUR INSTALLATION
There are three basic types of Direct Vent System installations. The three types of installations are:
Vertical Termination
Horizontal Termination
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