Lennox BRENTWOOD SP Installation And Operation Instructions Manual page 11

WARNING: The outlet grills
should not be installed fac-
ing upward through a floor.
Danger of burns can result
if grills in floor are stepped
on.
Outlet Grill
Maintain at least 6-1/2"
(160 mm) clearance from
the outlet grill framing to
a combustible ceiling,
side wall or mantel.
Figure 13
Figure 14
Outlet Grill
13" x 13"
10' Max.
Collar
Flashing
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
10' Max.
Rain Cap
Roof Support
Attic Radiation
Shield
Radiation Shield
(Firestop)
6-1/2" Min.
(to ceiling)
68" Min.
45" Min.
Non-Combustible
Facing
11