www.desatech.com
119638-01C
11
Heat Resistant
Material
(A)
Noncom-
bustible
Material
Distance
(A)
Requirements for Safe
Installation
12" or
more
Noncombustible. material.
okay.
Between
8" and 12"
Install fireplace hood (GA6050,
GA6052 or GA6053, see
Ac-
cessories
, page 31).
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.
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
INSTALLATION
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.behind.it..
Noncombustible.material.must.extend.at.least.
8" up. If noncombustible material is less than
12", you must install the fireplace hood acces-
sory..Even.if.noncombustible.material.is.more.
than 12", you may need the hood accessory to
deflect heat away from your mantel shelf. See
Figure.5.and.Figures.6.and.7.on.page.1.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.13.
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 Clearances
If you meet minimum clearance between man-
tel shelf and top of fireplace opening, a hood
is not required (see Figure 6, page 12).
Determining Minimum Mantel Clearances
When Using a Hood
If minimum clearances in Figure 6, page 12
are not met, you must have a hood. When
using.a.hood.there.are.still.certain.minimum.
mantel clearances required. Follow minimum
clearances shown in Figure 7, page 12 when
using.hood.
NOTICE: Surface temperatures
of adjacent walls and mantels be-
come hot during operation. Walls
and mantels above the firebox
may become hot to the touch.
If installed properly, these tem-
peratures meet the requirements
of the national product standard.
Follow all minimum clearances
shown in this manual.