Desa 103426-01 - Manual (Page 7)

7 103426
SPLIT OAK AND AMERICAN OAK DESIGN
18", 24" AND 30" MODELS
Non-Combustible Requirements for
Material Distance (A) Safe Installation
12" or more Non combustible material OK.
Between 8" and 12" 24" or 30" Models: Install fireplace hood accessory
(GA6050 or GA6052, see
Accessories, page 23).
18" Model: Non combustible material OK.
Less than 8" Noncombustible material must be extended to at
least 8". See
Between 8" and 12", above. If you
cannot extend material, you must operate heater
with flue damper open.
Heat Resistant
Material
(A)
Figure 6 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
INSTALLATION
Continued
Minimum Non Combustible Material Clearances
If Using Mantel
You must have non combustible material(s) above the fireplace opening. Non combustible
materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal,
you must have non combustible material behind it. Non combustible material must extend
at least 8 inches up (for all models). If non combustible material is less than 12", you must
install the fireplace hood accessory (24" and 30" models only). Even if non combustible
material is more than 12", you may need the hood accessory to deflect heat away from your
mantel shelf. See chart below and Figures 7 and 8 (page 8) for minimum clearances.
IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with
chimney flue damper open. Go to Installing Damper Clamp Accessory for Vented Opera-
tion, page 8.
Non-Combustible Requirements for
Material Distance (A) Safe Installation
12" or more Non combustible material OK.
Between 8" and 12" 24" or 30" Models: Install fireplace hood accessory
(GA6050 or GA6052, see
Accessories, page 23).
18" Model: Non combustible material OK.
Less than 8" Non combustible material must be extended to at
least 8". See
Between 8" and 12", above. If you
cannot extend material, you must operate heater
with flue damper open.
Minimum Non-
Combustible
Material
Minimum Non-
Combustible
Material Height Distances to
Underside of
Mantel
Top of Fireplace
Opening
Underside of
Mantel Shelf
12"
8"
(A)
20"
14"
24 1/2 "
16 3/4 "
27 1/2 "
18 1/2 "
30"
20"
All minimum
distances are
in inches
Log Set
24"/30" Models
18" Model
2 1 /2 "
6"
8"
10"
Figure 7 - Minimum Mantel Clearances Without Using Hood
Mantel Clearances
In addition to meeting non-combustible
material clearances, you must also meet
required clearances between fireplace open-
ing and mantel shelf. If you do not meet the
clearances losted below, you will need a
hood.
Determining Minimum Mantel
Clearance
If you meet minimum clearance between
mantel shelf and top of fireplace opening, a
hood is not required (see Figure 7).
Mantel Shelf
Continued