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3. Gently stretch the 5" & 8" flexible aluminum pipes on the termination kit (#844 or #845) and on each extension kit, if used, the
length required so when all the sections are connected together, the vent system length for your installation is attained.
IMPORTANT: DO NOT STRETCH THE EXTENSION KIT BEYOND 6'. DO NOT STRETCH BEYOND WHAT IS REQUIRED - IT IS VERY
DIFFICULT TO RECOMPRESS THE FLEX PIPES ONCE STRETCHED.
4. Using your extension kit pieces, place a bead of sealant outside the 5" flex pipe collar (C) - the end with the EXTERNAL lip - and
slide it inside the 5" pipe on top of the fireplace (D). Secure with 3 additional evenly spaced screws.
5. Place a bead of sealant inside the 8" flex pipe collar (E) - the end with the internal lip - and slide it over the 8" pipe on top of the
fireplace (F). Secure with 3 additional evenly spaced screws.
Minimum venting requirements: A minimum of 40" to
the top of the vent pipe and 43" to the top of the
framed opening from the floor or hearth the fireplace
is setting on is required.
Refer to pages 5 - 9 for complete venting
requirements & restrictions.
FIGURE 13
6. If additional extension kits are being used, repeat steps 4 and 5, placing the 5" & 8" pipes onto the previous extension kit.
Referring Figure 13:
7. A MTK-WPT wall pass-thru must be used for horizontal runs that pass through either interior or exterior walls. Install the MTK-
WPT wall pass-thru on both sides of the 14 1/8" square opening and secure with nails or screws.
NOTE: Attachment brackets are included with the termination kit. These optional brackets should be screwed or nailed (screws not
provided) onto the top and bottom of the 14 1/8" square opening, on the exterior of the house. The termination plates then fit between these
brackets, and using the screws provided, screw the brackets to the termination kit box (A). Attach the vinyl siding protector (G).
8. Apply a liberal bead of exterior sealant around the outer edge of the plate (A), and place the assembly through the 14 1/8" square
opening in the exterior wall. Place screws through the four slots (B) securing it in place.
9. Gently pull the 5" & 8" flexible aluminum down to the top of the extension kit, or the top of the unit if no extension kits were used.
10. Place a bead of sealant outside the 5" flex pipe collar (C) and slide it into the 5" pipe on the extension kit or top of the stove (D).
Secure with 3 additional evenly spaced screws.
NOTE: This connection is very difficult to remove without damaging the collars once installed.
11. Place a bead of sealant inside the 8" flex pipe collar (E) and slide it over the 8" pipe on the extension kit or top of the stove (F).
Secure with 3 additional evenly spaced screws.
NOTE: This connection is very difficult to remove without damaging the collars once installed.
12. OPTIONAL: Place insulation between the 8" pipe and the wall studs.
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