Optima 45 - 3 19
Measure wall thickness from the back of the fireplace standoffs to inside mounting surface of the termination cap. If
a Vinyl siding standoff is required, measure to the outside surface of the wall without siding and add 2” (50 mm).
NOTE: The Termination cap must NOT be recessed into siding. Measure wall thickness including finishing straps.
VENTING - HORIZONTALLY USING SIMPSON DURA-VENT DIRECT VENT SYSTEMS
The Optima 45-3 can be vented horizontally using Simpson Dura-Vent Direct Vent System. To vent using Simpson
Dura-Vent exclusively, you must use the Archgard SDA-U Adaptor and connect the SDA-U adaptor to the top of the
Optima 45-3 as shown in Fig. 1.
NOTE: Apply high temperature sealant to the SDA-U adaptor and the flue connection on the Optima 45-3. Seal all
pipe joints and follow all venting instructions within this manual.
NOTE: Call your local Authorized Archgard Dealer to purchase Simpson Dura-Vent Direct Vent Kits and/or venting
components.
Wall Thickness (inches) Vent Length Required (inches) Wall Thickness (mm) Vent Length Required (mm)
4” - 5 ½” 6” 101 mm - 140 mm 152 mm
7” - 8 ½” 9” 178 mm - 216 mm 228 mm
10” - 11 ½” 12” 254 mm - 292 mm 305 mm
9” - 14 ½” 11” - 14 ⅝” Adj. Pipe 228 mm - 368 mm 228 mm - 371 mm
15” - 23 ½” 17” - 24” Adj. Pipe 381 mm - 597 mm 432 mm - 610 mm
Flat Wall Installation
Wall Thickness (inches) Vent Length Required (inches) Wall Thickness (mm) Vent Length Required (mm)
3 ¼” - 6 ¾” 11” - 14 ⅝” Adj. Pipe 82 mm - 171 mm 228 mm - 371 mm
7 ¾” - 16 ¼” 17” - 24” Adj. Pipe. 197 mm - 412 mm 432 mm - 610 mm
7 ¼” - 8 ¾” 6” + 12”
Or 9” + 9”
184 mm - 222 mm 101 mm + 305 mm
Or 228 mm + 228 mm
4 ¼” - 5 ¾” 6” + 9” 108 mm - 146 mm 152 mm - 228 mm
Corner Installations
Minimum components required for horizontal termination using Simpson Dura-Vent:
1 SDA-U (Appliance adaptor) 1 90 Deg. Elbow
1 Horizontal Termination Cap 1 Wall Thimble
1 Length of pipe for top of appliance 1 Length of pipe to suit wall thickness
Part # Description
971 Horiz. Term. Kit Includes; 90
0
. Blk elbow, wall thimble
cover, Horiz. square term. Cap, 24” (610 mm) blk pipe
and 11”-14” (279 mm x 356 mm) adj. blk pipe.
970 Basic Horiz. Term. Kit Includes; 90
0
. blk elbow, wall
thimble cover, Horiz. square term. cap.
987 Vertical Termination Kit Includes;
0/12- 6/12 pitch adj. flashing, storm collar, low profile
term. cap.
908B 6” (152 mm) Pipe Length - Black
907B 9” (228 mm) Pipe Length - Black
906 12” (305 mm) Pipe Length - Galv.
906B 12” (305 mm) Pipe Length - Black
904 24” (610 mm) Pipe Length - Galv.
904B 24” (610 mm) Pipe Length - Black
903 36” (914 mm) Pipe Length - Galv.
903B 36” (914 mm) Pipe Length - Black
Part # Description
902 48” (1.22 M) Pipe Length - Galv.
902B 48” (1.22 M) Pipe Length - Black
911B 11” - 14 ⅝” (228 mm x 371 mm) Adj. Pipe
Length - Black
917B 17”’ - 24” (432 mm) x (610mm) Adj. Pipe
Length - Black
945 45
0
Elbow - Galv.
945B 45
0
Elbow - Black
945G 45
0
Elbow - Swivel - Galv.
945BG 45
0
Elbow - Swivel - Black
990 90
0
Elbow - Galv.
990B 90
0
Elbow - Black
990G 90
0
Elbow - Swivel - Galv.
990BG 90
0
Elbow - Swivel - Black
991 Vertical Termination Cap High Wind
980 Vertical Termination Cap
Part # Description
984 Horizontal (Square) Termination Cap
985 Horiz. (SQ) Term. Cap. High Wind.
982 Snorkel - 14” (356 mm) Rise Term. Cap
981 Snorkel - 36” (914 mm) Rise Term. Cap
940 Wall Thimble - Support Box
941 Cathedral/Ceiling - Support Box
3951 Brass Trim for Wall Thimble/Ceiling Sup.
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
SIMPSON DURA-VENT DIRECT VENT PARTS LIST 6 ⅝” x 4” (168 mm x 101 mm)
See your Authorized Archgard Dealer for price and availability.
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