Stratford
Fireplace Installation and Operation Manual
64 __________________________________________________________________________
to the wall with screws. Secure hot air outlets (F) to the elbows (E) with 3 self-tapping screws each.
Secure the hot air outlets grilles to the frames with screws.
4.
Maintain at least a 2" (50 mm) clearance between the ducts and the firestop; the required hole size for
the hot air grilles (outlet) is 8¼" × 8¼" (210 mm × 210 mm).
5.
The maximum number of elbows in a run of duct is two.
6.
Maintain at least 10" (254 mm) clearance from the outlet grille framing to a combustible ceiling, side
wall or mantel.
7.
When passing through a combustible wall or floor, a firestop must be installed at the wall or floor
penetration. The hole size must be in accordance with the duct manufacturer’s instructions.
