Desa Split Oak Design, American Oak Design Unvented Propane Gas Log Heater Model Split Oak and American Oak Design Owner's Operation And Installation Manual page 7

SPLIT OAK AND AMERICAN OAK DESIGN
INSTALLATION
Continued
Noncombustible
Material Distance (A)
12" or more
Between 8" and 12"
Less than 8"
Minimum Noncombustible Material Clearances
If Using Mantel
You must have noncombustible material(s) above the fireplace opening. Noncombustible
materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal,
you must have noncombustible material behind it. Noncombustible material must extend at
least 8 inches up (for all models). If noncombustible material is less than 12", you must
install the fireplace hood accessory (24" and 30" models only). Even if noncombustible
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.
Noncombustible
Material Distance (A)
12" or more
Between 8" and 12"
Less than 8"
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).
103427
18", 24" AND 30" MODELS
Requirements for
Safe Installation
Noncombustible material OK.
24" or 30" Models: Install fireplace hood accessory
(GA6050 or GA6052, see Accessories, page 23).
18" Model: Noncombustible material OK.
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.
Requirements for
Safe Installation
Noncombustible material OK.
24" or 30" Models: Install fireplace hood accessory
(GA6050 or GA6052, see Accessories, page 23).
18" Model: Noncombustible material OK.
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.
Minimum Non-
Combustible
Material
Figure 7 - Minimum Mantel Clearances Without Using Hood
Continued
7
Heat Resistant
Material
Figure 6 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
Mantel Shelf
10"
8"
6"
1
2 "
/2
(A)
1 /2 1 /2
12" 20" 24 " 27 "
3 /4 1 /2
8" 14" 16 " 18 "
Minimum Non- Distances to
Combustible Underside of
Material Height Mantel
(A)
Underside of
Mantel Shelf
All minimum
distances are
in inches
Log Set
30" 24"/30" Models
20" 18" Model
Top of Fireplace
Opening