Chimney System; Assembly Outline; Location Of Fireplace - Lennox Hearth Products CST-38 Installation Instructions Manual

Merit series 36" wood burning fireplace
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For questions, please call your distributor or
the manufacturer. Special restrictions apply to
the front and facing of the fireplace and nearby
walls (See pages 18, 19 and 20 ).

CHIMNEY SYSTEM

These fireplaces are designed and listed for
use with Security Chimneys FTF8 chimney
System only. Always use Security Chimneys
FTF8 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.
Insulate Joists
Same As Ceiling
Draft Stops
Firestop
CTDT
Termination
Note: Non-
Combustible
Chase
Flashing
Must Be
Used To
Cover
Chase
Opening
8'
Level
Insulation
(Thermal Barrier)
Figure 2
4
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.
WARNING: DO NOT PACK OR FILL RE-
QUIRED AIR SPACES WITH INSULATION
OR OTHER MATERIAL. NO MATERIAL IS
ALLOWED IN THESE AREAS.
Note: Do not insulate the chase cavity with
blown or fill type insulation materials.
Note: Local codes may not require firestopping
at the ceiling levels for outside chase installa-
tions. However, it is recommended for safety
and the reduction of heat loss.
Chimney Height
The total height of your CST and CPF fireplace
systems from the surface the fireplace rests
on to the chimney top must not exceed 80'
(24.4m) and must also meet minimum system
height chart.
Minimum System Height
Model CST-38
and CPF-38
Vertical Installation
One Offset
Optional
Insulation
In Outside
Two Offsets
Walls Of
Chase
Chase Enclosure
Solid
A chase is a vertical box-like structure con-
Continuous
structed to surround the fireplace and chimney.
Surface
Refer to Figure 2 for a typical chase configura-
tion. A chase should be constructed and insu-
Outside
Base
lated just like any outside wall. In a cold climate,
we recommend the base of the chase should
also be insulated between the solid continuous
floor beneath the fireplace and the chase bot-
tom. Chase insulation in a cold climate installa-
tion is not required for safety.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

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 in the open position.
When pulled down, the damper is closed.
Lintel
Figure 3

LOCATION OF FIREPLACE

Carefully select the proper location for heat
circulation, aesthetics, chimney obstructions
and clearance to side wall(s). With proper pre-
Security's
planning, a slight adjustment of a few inches
FTF8
can save considerable time and expense later
during construction and assembly.
15' 0" (4.6 m)
16' 0" (4.9 m)
25' 0" (7.6 m)
Figure 4
Damper
Damper
Open
Closed

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