NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Appliance Specifications
Fireplace Finishes
SPECTRA
™
LSS-35/40
775,646M Rev. N/C 05/07
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.
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.
Minimum Clearance To Combustibles
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.
Note: Paint or lacquer uses to finish the
mantel must be heat resistant in order to
avoid discoloration.
Note: All specifications, ratings and dimen-
sions are subject to change without notice.
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Product Reference Information
Weight Cubic Ft. BTU/HR
LSS-35
204 lb.
42
33,000
LSS-40
231 lb.
47.6
41,500
12 (305) MANTEL
10 (254) MANTEL
8 (203) MANTEL
6 (152) MANTEL
4 (102) MANTEL
16
(406)
26
(660)
24
(610)
22
(559)
2 (51) MANTEL
Top Of
Fireplace
Opening
18
(457)
20
(508)
MANTEL CLEARANCES
Inches (mm)
17"
14"
Min. Distance To
Unprotected Side Wall
45
°
Combustible
Materials
Allowed In
Shaded
Area “Safe
Zone”
12"
5"
Min. Distance
To Protected
Side Wall
Top View Of
Fireplace
Side
Wall
Side
Wall
8
¹⁄₄
"
Combustible Materials
Not Allowed In This Area
4
¹⁄₂
"
H
ELECTRICAL
INLET
Diminsions In Inches (mm)
*
Includes The 1/2” Spacers
1 (25.4)
3 (76)
11-1/4
(286)
G
1/2” Spacers
8-11/32
(211)
A
E
D
F
B
C
1
(25.4)
3 (76)
GAS INLET
(BOTH SIDES)
*21-3/8
(543)
6
(152)
8-13/16
(225)
2-9/16
(65)
3
(76)
FRAMING SPACERS
CONCENTRIC FLUE
Combustion Air - 7-1/2
(190)
Flue - 4-1/2 (114)
3 (76)
Vent Restrictor
Adjustment Rod
