Installation, Continued – Desa "A" Models User Manual

Page 8

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104415-01L

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8

Carefully follow the instructions below. This will ensure safe
installation into a masonry, UL127-listed manufactured fireplace,
or listed vent-free firebox.

Minimum Clearances For Side Combustible
Material, Side Wall, and Ceiling

A. Clearances from the side of the fireplace cabinet to any combus-

tible material and wall should follow diagram in Figure 4.

Example:

The face of a mantel, bookshelf, etc. is made of

combustible material and protrudes 3

1

/

2

" from the wall. This

combustible material must be 4" from the side of the fireplace
cabinet (see Figure 4).

Note:

When installing your gas logs into a manufactured firebox,

follow firebox manufacturer’s instructions for minimum clearances
to combustible materials.

B. Clearances from the top of the fireplace 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" or 30" Models: Install fireplace
hood accessory (GA6050, GA6052, or
GA6053 see

Accessories, page 36).

18" Model: Noncombustible
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.

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 information on this page.

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

NOTICE: Manual control heaters may be used as a
vented product. If so, you must always run heater with
chimney flue damper open. If running heater with
damper open, noncombustible material above fire-
place opening is not needed. Go to

Installing Damper

Clamp Accessory for Vented Operation, page 10.

INSTALLATION

Installation and Clearances for Vent-Free Operation (Cont.)

noncombustible material 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.

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 Figure 5 and Figures
6 and 7, page 9, for minimum clearances.

IMPORTANT:

If you cannot meet these minimum clearances, you

must operate heater with chimney flue damper open. Go to Install-
ing Damper Clamp Accessory for Vented Operation
, page 10.

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