Mantel Clearances - Desa VUL18NR Owner's Operation And Installation Manual

MINIMUM NONCOMbUSTIbLE
MATERIAL CLEARANCES
If Not Using Mantel
Note: If using a mantel proceed to If Using
Mantel. If not using a mantel, follow the infor-
mation on this page.
You must have noncombustible material(s)
above the fireplace opening. Noncombus-
tible materials (such as slate, marble, tile,
etc.) must be at least 1/2" thick. With sheet
metal, you must have noncombustible ma-
terial behind it. Noncombustible material
must extend at least 8" up (for all models).
If noncombustible material is less than 12",
you must install the fireplace hood accessory
(24" and 30" Models Only). See Figure 5 for
minimum clearances.
Noncombustible
Material
Distance (A)
12" or more
Between 8" and 12" 24", 30" or 36" Models:
Less than 8"
Heat Resistant
Material
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
122001-01C
INSTALLATION
Requirements for Safe
Installation
Noncombustible mate-
rial OK.
Install fireplace hood
accessory (GA6050,
GA6052 or GA6053 see
Accessories, page 40).
18" Model: Noncom-
bustible material OK.
Noncombustible mate-
rial must be extended
to at least 8". See
Between 8" and 12",
above. If you cannot ex-
tend material, you must
operate heater with flue
damper open.
(A)
www.desatech.com
Continued
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" thick. With sheet metal,
you must have noncombustible material be-
hind it. Noncombustible material must extend
at least 8" up (for all models). If noncombus-
tible material is less than 12", you must install
the fireplace hood accessory (24" and 30"
Models Only). Even if noncombustible mate-
rial is more than 12", you may need the hood
accessory to deflect heat away from your
mantel shelf. See Figures 5 and 6 and Figure
7, page 9, for minimum clearances.
IMPORTANT: If you cannot meet these mini-
mum clearances, you must operate heater
with chimney flue damper open. Go to Install-
ing Damper Clamp Accessory for Vented
Operation, page 12.

MANTEL CLEARANCES

In addition to meeting noncombustible mate-
rial clearances, you must also meet required
clearances between fireplace opening and
mantel shelf. If you do not meet the clearances
listed 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 6).
Minimum
Noncombustible
Material
Figure 6 - Minimum Mantel Clearances
Mantel Shelf
10"
8"
6"
2 1 /2"
(A)
12" 18" 20" 22"
8" 14" 17" 19"
Minimum Distances to
Noncombustible Underside of
Material Height Mantel
Without Using Hood
Underside of
Mantel Shelf
All minimum
distances are
in inches
Log Set
24"/30"/36"
24"
Models
20"
18" Model
Top of
Fireplace
Opening
11