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 inch thick. With sheet metal, you must have non- combustible 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 on page 9 for minimum clearances.

IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chim- ney flue damper open. Go to Installing Damper Clamp Accessory for Vented Operation, page 11.

Noncombustible

Requirements for

Material

Safe Installation

Distance (A)

 

 

 

12" or more

Noncombustible material

 

okay.

Between 8"

Install fireplace hood

and 12"

accessory (GA6050,

 

GA6052, or GA6053 see

 

Accessories, page 34).

Less than 8"

Noncombustible material

 

must be extended to at

MANTEL CLEARANCES

In addition to meeting noncombustible material 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 mantel shelf and top of fireplace opening, a hood is not required (see Figure 6).

Determining Minimum Mantel Clearances When Using a Hood

If minimum clearances in Figure 6 are not met, you must have a hood. When using a hood there are still certain minimum mantel clearances re- quired. Follow minimum clearances shown in Fig- ure 7, page 11, when using hood.

NOTICE: Surface temperatures of adjacent walls and mantels become hot during operation. Walls and mantels above the fire- box 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.

least 8". See Between 8"

and 12", above. If you

cannot extend material,

you must operate heater

with flue damper open.

Heat Resistant

Material

(A)

 

 

10"

 

 

8"

 

 

 

6"

 

 

 

2 1/2"

Minimum

 

 

(A)

 

 

Noncombustible

 

Material

 

12"

 

 

 

 

 

 

8"

 

 

 

 

Mantel Shelf

18"

 

20"

22"

 

8"

 

14"

17"

 

 

 

 

Underside

of Mantel

Shelf

All minimum distances are in inches

Log Set

24"/30"

24" Models

20" 18" Model

Top of Fireplace Opening

Minimum

Distances to

Noncombustible

Underside of

Material Height

Mantel

Figure 6 - Minimum Mantel Clearances

Without Using Hood

Figure 5 - Heat Resistant Material (Slate,

Marble, Tile, etc.) Above Fireplace

10

www.desatech.com

111161-01D

Page 10
Image 10
Desa Tech CCL3018NR, CCL3930PRA installation manual Mantel Clearances, If Using Mantel

CCL3018NR, CCL3018PR, CCL3018NRA, CCL3018PRA, CCL3924NR, CCL3924PR, CCL3924NRA, CCL3924PRA, CHL3924NR, CHL3924PR, CCL3930NR, CCL3930PR, CCL3930NRA, CCL3930PRA, CCL3018NR, CCL3930PRA specifications

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