d. Fasten the canopy with 11 screws from the bottom.
12. Fix 6 nuts on the internal side of top duct covers
sections (squere slots) and fix each other with 6 screws
(3 per side).
13. Install top duct covers assembly to the chimney
structure.
Fix with 2 screws.
Note: Upper Duct Cover may be placed upside down to
hide (or unhide) ventless slots.
10