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MIN. 12 FT.
MAX. 35 FT.
MAX. 35
The efficiency rating of this appliance is a product thermal efficiency rating determined under continuous operating
conditions and was determined independently of any installed system.
THIS INSERT IS APPROVED FOR INSTALLATION IN MASONRY AND FACTORY-BUILT SOLID FUEL BURNING FIREPLACES.
CAUTION:
THIS APPLIANCE MUST NOT BE CONNECTED TO A CHIMNEY FLUE SERVING A SEPARATE SOLID-FUEL
BURNING APPLIANCE.
THE EXISTING FIREPLACE MUST MEET THE FOLLOWING
REQUIREMENTS:
1. The existing fireplace & chimney must be clean and in good
working order and constructed of non-combustible
materials.
2. A gas line must be able to be installed to the insert.
3. Any chimney clean-outs must fit properly.
4. Existing Chimney:
Class ‘A’ metal chimney: 7” minimum inside diameter.
Masonry Chimney: 6" x 8" minimum inside diameter.
Existing chimney height: Minimum: 12 ft.
Maximum: 35 ft.
To Determine the length of your existing chimney:
A) Remove the chimney cap.
NOTE: It is helpful to have two people complete the next step
in determining chimney height:
B) With one person at the fireplace and the other person at the top
of the chimney, measure from the base of the fireplace to the
top of the chimney. Subtract 23” for the height of the insert.
This is the total length of co-linear flexible aluminum you will
require.
MEASUREMENT FROM FIREPLACE BASE TO TOP OF CHIMNEY:_____
LESS 23” (HEIGHT OF INSERT):
-23”
TOTAL CHIMNEY LENGTH REQUIRED:
______
5. The minimum inside dimensions of the existing fireplace
must be:
Height (A): 23½”
Front Width (B): 33 1/2"
Depth (C): 16 ½"
Back Width (D): 24 1/2"
NOTE: The refractory / firebrick may be removed to achieve
minimum opening size requirements.
MINIMUM OPENING DIMENSIONS
ZERO CLEARANCE FIREPLACE
INSTALLATIONS:
The floor of the existing fireplace may be removed to
achieve minimum opening size requirements.
6. MINIMUM CLEARANCES FROM THE INSERT TO
COMBUSTIBLES:
• Insert side to sidewall: 12"
• Insert top to 9" mantel: 16”
• Insert top to 3/4" trim: 12"
• Bottom of insert to combustible floor in front: 6”
• Bottom of insert underneath to combustible floor: 0"
D
C
A
B
Summary of Contents for CSK-335
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