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LENNOX HEARTH PRODUCTS • ESTATE™ SERIES WOOD-BURNING FIREPLACES • MODELS EST-36, EST-42, EST-50 • INSTALLATION INSTRUCTIONS
TABLE OF CONTENTS
Packaging List ...................................page 2
SAFETY RULES ........................ page 2
Tools and Building Supplies ..............page 2
PRECAUTIONS ......................... page 3
Introduction ......................................page 3
Clearances/Height Requirements ......page 3
Chimney System ...............................page 3
Assembly Outline ..............................page 4
Location of Fireplace .........................page 4
Pre-Assembly Steps ..........................page 5
Pre-Installation Notes .......................page 5
Clearances ........................................page 5
Assembly Steps ................................page 5
Installing the EST-50 Outer
Transition Assembly ......................page 6
Installing the Fireplace ......................page 9
Fireplace Specications .....................page 10
Framing Specications ......................page 11
Installing the Chimney System ..........page 12
Ten Foot Rule Summary ....................page 14
Multiple Terminations........................page 15
Chimney Component Calculations ....page 15
Special Offset Instructions ................page 15
Offset Calculations ............................page 16
Vertical Elevation Chart ....................page 17
Offset Elevation Chart ........................page 17
Installing Offsets ...............................page 18
30° Chimney Offset through
Floor/Ceiling ..................................page 18
Installing the Refractory Panels ........page 18
Optional Equipment Considerations ..page 19
• Outside Combustion Air Kits .........page 19
• Glass Doors ..................................page 19
Gas Line Connection .........................page 20
Vent Free Appliances .........................page 20
Cold Climate Insulation .....................page 20
Fireplace Finishes ..............................page 20
• Mantels and Trim ..........................page 20
• Hearth Extensions/Wall Shields ....page 21
Finish Requirements .........................page 23
Shipping Weights ..............................page 23
Installation Components ...................page 24
PACKAGING LIST
Included with all models:
• (1) Fireplace Assembly
• (1) Metal Safety Strip Assembly
• (1) Grate Assembly
• (2) Grate Brackets
• (2) Pull Screen Panels (Mesh Firescreens)
• (2) Screen Rods
• Hardware
Also included with EST-36 and EST-42 models:
• (2) Refractory Clips
Also included with EST-42 models:
• (2) Front Refractory Retainers (LH & RH)
Also included with EST-50 models:
• (1) Outer Transition Assembly
• (1) Inner Collar Assembly
• (1) Damper Link
12. Always ensure that an adequate supply of
replacement combustion air from the outside
of the house is accessible to the fire to support
normal combustion. Fireplaces consume large
volumes of air during the normal combustion
process.
If the home is tightly sealed with modern energy
efficient features, the optional combustion air kit
may not provide all the air required to support
combustion. The manufacturer is not respon-
sible for any smoking or related problems that
may result from the lack of adequate combus-
tion air. It is the responsibility of the builder/
contractor to ensure that adequate combustion
air has been provided for the fireplace.
13. DO NOT use a fireplace insert or any other
products not specified herein by the manufac-
turer for use with this fireplace. All gas log sets
must be operated with the damper clamped
open, including unlisted “vent-free” log sets.
Listed “vent-free” log sets may be operated
with the damper closed.
14. “Smoke free” operation is not warranteed
nor are we responsible for inadequate system
draft caused by mechanical systems, general
construction conditions, inadequate chimney
heights, adverse wind conditions and/or unusual
environmental factors or conditions beyond
our control.
15. Never, under any circumstances, install a
fireplace, chimney component or any acces-
sories, that has visible or suspected physical
damage as a result of handling or transporta-
tion. These items should be inspected by your
distributor or qualified factory representative to
ensure safe condition. When in doubt, consult
your distributor.
16. For additional safety considerations and
complete operating instructions, refer to the
Care and Operation Manual provided with the
fireplace.
TOOLS AND BUILDING SUPPLIES
NORMALLY REQUIRED
Tools required:
Phillips screwdriver Measuring tape
Electric drill and bits Hammer
Plumb line Pliers
Saw and/or Sabersaw Square
Level
Additional tools for EST-50 installation:
5/16" and 1/4" nut driver
Two 7/16" wrenches
Building supplies required:
Framing materials
Wall nishing materials
Caulking materials (noncombustible)
Fireplace surround and hearth
extension materials (noncombustible)
SAFETY RULES
IMPORTANT: PLEASE READ AND
UNDERSTAND THESE RULES TO
FOLLOW FOR SAFETY.
1. Before starting replace installation, read
these installation instructions carefully to be
sure you understand them completely and in
entirety. Failure to follow them could cause a
fireplace malfunction resulting in serious injury
and/or property damage.
2. Always check your local building codes. The
installation must comply with all local, regional,
state and national codes and regulations.
3. The Estate™ Series 36" and 42" models
may be installed with Security Chimneys™
FTF10 [10" (250mm) inside diameter] chimney
systems. The Estate Series 50" model may
only be installed with Security Chimneys™
FTF13 [13" (330mm) inside diameter] chimney
system. These systems are intended for use
in any application where a traditional masonry
type fireplace would apply. The chimney system
must always vent to the outside of the building.
4. To ensure a safe fireplace system and to pre-
vent the build-up of soot and creosote, inspect
and clean the fireplace and chimney prior to
use and periodically during the heating season.
5. Use solid fuel only. DO NOT use chemical
chimney cleaners or flame colorants in your
fireplace.
Never burn treated construction lumber or
scraps. These woods burn excessively hot and
may contain chemicals used to treat insects
and fungus. When burned, these chemicals
can pose a significant hazard.
6. DO NOT use charcoal or coal under any
circumstances.
7. NEVER use gasoline, gasoline-type lantern
fuel, kerosene, charcoal lighter fluid, or similar
liquids to start or “freshen up” a fire in this
replace. Keep any ammable liquids at safe
distance from the fireplace.
8. NEVER leave children unattended when there
is a fire burning in the fireplace.
9. Always keep flue damper open when heat is
present in the fireplace.
10. Before servicing, allow the replace to cool.
Always shut off any electricity or gas to the
fireplace while working on it. This will prevent
any possible electrical shock or burns.
11. This fireplace is not intended to heat an
entire home or be used as a primary heat source.
It is designed to ensure homeowner comfort
by providing supplemental heat to the room.