Figure 1
Residential Installation
L12 (1 ft. pipe)
L18 (1¹⁄₂ ft. pipe)
L36 (3 ft. pipe)
L48 (4 ft. pipe)
Maintain 2" Minimum Air Space Be-
tween Chimney and Combustibles
Fireplace Model
SB4800
Flexible Duct
Type FP-4-U
Combustion Air
Assembly
53D9025
Model LC
Chimney Cap
Roof Flashing
Model 612
FP1875
SB4800 features
8/08
(Flue Outlet Height)
15 ft. = Min. Height (No offsets)
15 ft. = Min. Height (2 30° Elbows)
21 ft. = Min. Height (4 30° Elbows)
86 ft. = Max. Height (Chimney support
every 25 ft.)
Storm
Collar
Top Spacer
48"
52"
CAUTION: Do Not Restrict Side Air Inlet Vents
with Surround or Trim Materials
Galvanized Metal Strip
Nail to Framing Members
PRODUCT FEATURES
Firestop Model LF-FS-2
(Requires 17 x 17 framing)
(Floor Line)
5