Lennox Hearth Products SPECTRA LSS-35 Detailed Planning Dimensions

Product Reference Information
Weight Cubic Ft. BTU/HR
LSS-35 204 lb. 42
LSS-40 231 lb. 47.6
M d o l e
A B
N . o
. n i 8 3 3 8 / 5 3 / 1 6 1
L S - S 5 3
m m 9 5 7 8 1 9
. n i 9 3 7 8 / 0 4 / 1 6 1
L S - S 0 4
m m 0 1 3 1 0 1 8 1
Note: All specifications, ratings and dimen-
sions are subject to change without notice.
Mantels And Trim
Vertical installation clearances to combus-
tible mantels vary according to the depth of
the mantel. The figure below details these
required clearances. Mantels constructed of
non-combustible materials may be installed
at any height above the appliance opening,
however, do not allow anything to hang be-
low the eyebrow.
MANTEL CLEARANCES
Inches (mm)
12 (305) MANTEL
10 (254) MANTEL
8 (203) MANTEL
6 (152) MANTEL
26
24
(660)
4 (102) MANTEL
(610)
22
(559)
20
2 (51) MANTEL
(508)
18
(457)
16
(406)
Top Of
Fireplace
Opening
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
SPECTRA
Appliance Specifications
33,000
41,500
C D E F
9 2 1 2 / 9 1 6 1 / 3 6 1 1 3 3 8 /
7 9 4 4 3 8 4 1 1 7 7 9
4 3 1 2 / 0 2 1 2 / 1 2 / 3 6 1 2 3 7 8 /
8 6 7 5 1 2 5 8 3 8 5 3
Fireplace Finishes
Minimum Clearance To Combustibles
A hearth extension is not required with this
appliance. If a hearth extension is used, do
not block the control compartment access
panel. Any hearth extension used is for
appearance only and does not have to con-
form to standard hearth extension installa-
tion requirements.
Note: Combustible wall finish materials
and/or surround materials must not be
allowed to encroach the area defined by the
appliance front face (black sheet metal).
Never allow combustible materials to be
positioned in front of or overlapping the
appliance front face.
Note: Paint or lacquer uses to finish the
mantel must be heat resistant in order to
avoid discoloration.
™
LSS-35/40
3 (76)
FRAMING SPACERS
8-11/32
(211)
A
D
Vent Restrictor
Adjustment Rod
G H
1 2 1 2 / 0 1 3 4 /
B
5 6 4 2 3 7
6 2 1 2 / 3 1 1 4 /
6 3 7 3 7 3
Diminsions In Inches (mm)
*
Includes The 1/2" Spacers
3 (76)
H
11-1/4
(286)
CONCENTRIC FLUE
Combustion Air - 7-1/2 (190)
1 (25.4)
Flue - 4-1/2 (114)
E
3 (76)
1
(25.4)
F
C
GAS INLET
(BOTH SIDES)
ELECTRICAL
INLET
6
(152)
8-13/16
(225)
Wall Details
Combustible materials may project beyond
the sides of the fireplace opening as long
as they are kept within the shaded areas
illustrated in the figure below.
Combustible Materials
Combustible
Not Allowed In This Area
Materials
Allowed In
Shaded
4 ¹⁄₂"
Area "Safe
Top View Of
Zone"
Fireplace
12"
5"
45°
17"
8 ¹⁄₄"
Side
Wall
Side
Wall
Min. Distance To
14"
Unprotected Side Wall
G
1/2" Spacers
3
(76)
2-9/16
(65)
*21-3/8
(543)
Min. Distance
To Protected
Side Wall
775,646M Rev. N/C 05/07