Lennox LSM40ST-N Installation Instructions Manual page 32

LENNOX HEARTH PRODUCTS • MONTEBELLO
Combustible Sheathing
Non-Combustible Board
B
Combustible Sheathing
A
12" (305 mm)
*Dimension "C" is clearance required from fireplace base to surface
(e.g., deck, patio, lanai) as a moisture barrier (not a combustible
clearance) on outdoor side only.
Figure 55: Sheathing
32
SEE-THROUGH DIRECT-VENT GAS FIREPLACES (LSM40ST-N / LSM40ST-P) • INSTALLATION INSTRUCTIONS
®
A
C
Sheathing Requirements
B
7" (178 mm) 6" (152 mm)
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
B
B
Siding
Material
Vinyl
C*
Non-Vinyl
*Dimension "C" is clearance required from fireplace base to surface
(e.g., deck, patio, lanai) as a moisture barrier (not a combustible
clearance) on outdoor side only.
Figure 56: Exterior Clearances
Overhang
Siding
A
A
C*
Exterior Minimum Clearances
A B
12" (305 mm) 35-1/2" (902 mm)
7" (178 mm) 35-1/2" (902 mm)
A
Siding
Trim
C*
6" (305 mm)
6" (305 mm)