111826-01F
For more information, visit www.desatech.com
8
Carefully follow the instructions below. This will ensure safe in-
stal la tion into a masonry, UL127-listed manufactured fi replace, or
list ed vent-free fi re box.
Minimum Clearances For Side Combustible
Material, Side Wall, and Ceiling
A. Clearances from the side of the fi re place cabinet to any com-
bus ti ble ma te ri al and wall should follow di a gram in Figure 4.
Example:
The face of a mantel, book shelf, etc. is made of
com bus ti ble ma te ri al and protrudes 3
1
/
2
" from the wall. This
com bus ti ble material must be 4" from the side of the fi replace
cabinet (see Fig ure 4).
Note:
When installing your gas logs into a manufactured fi re-
box, follow fi re box manufacturer’s instructions for min i mum
clear anc es to combustible ma te ri als.
B. Clearances from the top of the fi re place opening to the ceiling
should not be less than 42 inches.
Figure 4 - Minimum Clearance for Combustible to Wall
*Minimum 16 inches from Side Wall
*
Example
INSTALLATION
Continued
Heat Resistant
Material
(A)
Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.)
Above Fireplace
Noncombustible Requirements
for
Material Distance (A) Safe Installation
12" or more
Noncombustible material OK.
Between 8" and 12"
24" Models: Install fi re place hood ac-
cessory (GA6060, see
Ac ces so ries
,
page 27).
18" Model: Noncombustible mate-
rial OK.
Less than 8"
Noncombustible material must be ex-
tended to at least 8". See
Be tween 8"
and 12"
, above. If you cannot extend
material, you must operate heater
with fl ue damper open.
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 in for ma tion on this page.
You must have noncombustible material(s) above the fi replace open-
ing. Noncom bus ti ble materials (such as slate, marble, tile, etc.)
must be at least 1/2 inch thick. With sheet metal, you must have
NOTICE: Non thermostat controlled heaters maybe used
as a vented product. If so, you must always run heater
with chimney fl ue damper open. If running heater with
damper open, noncombustible material above fi replace
opening is not needed. Go to
Installing Damper Clamp Ac-
cessory for Vented Operataion
, page 10.
INSTALLATION
Installation and Clearances for Vent-Free Operation (Cont.)
noncom bus ti ble ma te ri al behind it. Noncombustible ma te ri al must
extend at least 8" up (for all mod els). If noncombustible ma te ri al
is less than 12", you must install the fi re place hood accessory (24"
and 30" Models Only). See Figure 5 for min i mum clear anc es.
If Using Mantel
You must have noncombustible material(s) above the fi replace
opening. Noncom bus ti ble materials (such as slate, marble, tile,
etc.) must be at least 1/2 inch thick. With sheet metal, you must
have noncom bus ti ble ma te ri al behind it. Noncombustible ma te ri al
must extend at least 8 inches up (for all models). If noncombus-
tible ma te ri al is less than 12", you must install the fi re place hood
ac ces so ry (24" Models Only). Even if noncombustible material is
more than 12", you may need the hood accessory to defl ect heat
away from your mantel shelf. See Fig ure 5 and Figures 6 and 7,
page 9, for min i mum clear anc es.
IMPORTANT:
If you cannot meet these minimum clearances, you
must operate heat er with chimney fl ue damper open. Go to
In stall ing
Damper Clamp Accessory for Vented Op er a tion
, page 10.
