18
Step 4
–
Wall support bracketing: Determine the chimney section length needed from the tee take-off to the
structure interior. A telescoping chimney section is useful to obtain exact length desired. Keep in mind, the
chimney must penetrate through the wall a minimum of 6 inches into the interior. Secure this length of chimney
to the tee take-off using a minimum of four self drilling screws. Then, secure a full length chimney section to
the top of the tee using a minimum of four self drilling screws. Loosely install a wall support bracket on the
first vertical chimney section above the tee. Install this assembly with the tee take-off chimney section going
through the wall thimble. Using a level, plumb the vertical chimney section and attach the wall bracket. Secure
the wall support bracket to the outside wall using a minimum of four #8 x 2 ½” screws. It is recommended to
endeavor securing wall support brackets into framing members rather than sheeting only. Further, secure the
wall support bracket to the chimney section by tightening the nut/bolt and use a minimum of four self drilling
screws through the predrilled holes of the wall support bracket band into the chimney section. Install the tee cap
onto the bottom of the tee using a minimum of four self drilling screws.
Optional tee cleanout - If desired an additional chimney section may be added to the bottom of the tee for
chimney cleanout purposes. Then simply add a tee cap to the bottom of the cleanout section. Ensure that the
cleanout tee and any added sections below for cleanout purposes maintain the required 2 inch air space to
combustibles.
Step 5
–
Trim plate and transition collar: From the interior, slide the Finished Trim Plate Section of the Wall
Pass Through (Thimble) over the horizontal section of the chimney and secure it to the framed opening using
screws supplied. Secure the Universal Adapter (VA-UAxx) to the end of the horizontal chimney section using a
minimum of four self drilling screws
. Note: A Finishing Collar
(VA-FCxx)
should be installed over the
universal adapter for appearance purposes only.
The stove connector pipe can now be secured to the universal
adapter.
Step 6
–
Assembling the chimney
:
Attach the remaining chimney sections above while still maintaining the
required 2 inch air space to combustibles. Use a minimum of four self drilling screws to attach per joint.
Wall
support brackets will need to be installed no more than 8 feet apart along the vertical chimney length.
Step 7
–
Finish the installation
Option 1 – Non chase enclosed chimney: The final chimney height should be determined using the
specifications found on Page 3 under the heading “Termination Above Roof.” Based on final chimney height
determine if an extended roof brace will be needed. If so, follow the instructions on Page 12 under the heading
“Optional Extended Roof Brace Installation.”
Option 2 – A chase enclosed chimney: For installing the chimney system in a chase application, the chimney
must extend a minimum of 6-inches above the chase cover. Please ensure that the chimney exterior has the
required 2 inch air space clearance from all chase enclosure combustibles including the hole in the chase
enclosure top sheathing. The chase enclosure top can be finished using either standard flat roofing materials or
a custom fabricated metal chase cover.
Note 1: It is recommended, in colder climates, that exterior mounted
chimney systems are enclosed to help reduce or limit condensation, creosote build-up and poor draft.
Note 2: It is recommended to provide some means of chase enclosure ventilation This is usually accomplished
by placing the storm collar approximately 2 inches above the chase collar.
Completion - Install a storm collar around the chimney and slide down to fit against the roof flashing. Caulk the
joint between the chimney and the storm collar with a waterproof silicone sealant. Fit the rain cap to the top of
the chimney. Attach by tightening the clamp band.
