NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
4
CHIMNEY SYSTEM
These fireplaces are designed and code listed
for use with Security Chimneys FTF13 chimney
System only. Always use Security Chimneys
FTF13 chimney components with these fire-
places. Do not modify or alter these compo-
nents as this may cause a potential serious
hazard and void the Warranty.
Figure 2
Note: Do not insulate the chase cavity with
blown or fill type insulation materials.
Chimney Height
The total height of your LS43ST fireplace
system from the surface the fireplace rests
on to the chimney top must not exceed 80'
(24.4m) and must also meet minimum sys-
tem height chart.
Minimum System Height
Model LS43ST
Security's
FTF13
Vertical Installation
14' 0" (3.7 m)
One Offset
15
¹⁄₂
0" (3.9 m)
Two Offsets
22' 0" (5.6 m)
Chase Enclosure
A chase is a vertical box-like structure con-
structed to surround the fireplace and chim-
ney. Refer to
Figure 2 for a typical chase
configuration. A chase should be constructed
and insulated just like any outside wall. Chase
insulation in a cold climate installation is not
required for safety.
ASSEMBLY OUTLINE
Before You Start
Check your inventory list to be sure you have all
the necessary parts supplied in good usable
condition. Check also for any concealed damage.
Check the operation of the damper. The damper
is controlled through the use of a control lever
located within the firebox opening at the top
center just behind the firebox lintel (
Figure 3 ).
The control lever snaps into place at the ex-
treme range of motion, up and back in the
closed position. When pulled forward and
down, the damper is open.
Figure 3
Damper
Closed
Damper
Open
Lintel
LOCATION OF FIREPLACE
Carefully select the proper location for heat
circulation, aesthetics, chimney obstructions
and clearance to side wall(s). With proper pre-
planning, a slight adjustment of a few inches
can save considerable time and expense later
during construction and assembly.
Figure 4
Insulate Joists
Same As Ceiling
Draft Stops
Firestop
FTF13
CTDT
Termination
Note: Non-
Combustible
Chase
Flashing
Must Be
Used To
Cover
Chase
Opening
Optional
Insulation
In Outside
Walls Of
Chase
Solid
Continuous
Surface
Outside
Base
Insulation
(Thermal Barrier)
8'
Level
Carefully consider the position of the fireplace
opening with respect to the location of adja-
cent or nearby stairwells, bath or kitchen ex-
haust fans and/or return air registers for forced
air furnaces/air conditioners that could cause
a smoking fireplace condition if the house is
tightly insulated.
This system is intended to be installed in resi-
dential homes and buildings of conventional
construction, not in mobile homes.
WARNING: DO NOT PACK OR FILL RE-
QUIRED AIR SPACES WITH INSULATION
OR OTHER MATERIAL. NO MATERIAL IS
ALLOWED IN THESE AREAS.
WARNING: IF INSULATION IS USED, THE
FIREPLACE MUST NOT BE PLACED DI-
RECTLY AGAINST IT. INSULATION OR
VAPOR BARRIERS, IF USED, MUST FIRST
BE COVERED WITH GYPSUM BOARD,
PLYWOOD, PARTICLE BOARD OR OTHER
MATERIAL TO ASSURE INSULATION AND
VAPOR BARRIERS REMAIN IN PLACE.
