NON-COMBUSTIBLE

BOARD

FACING TEMPLATE

Figure 11.7 Position of board and template

D. Hearth Extension

WARNING

Fire Risk.

Hearth extension required to protect combustible floors in front of appliance.

An 8 inch minimum hearth extension must be constructed of non-combustible material.

The base of the fireplace may sit on a combustible surface. The area in front of the fireplace must be protected by a noncombustible hearth extension, unless the fireplace is raised a minimum of 6 inches above the combustible floor or hearth. See figures 11.8 and 11.10.

SURFACE MAY BE COMBUSTIBLE

NAILING TABS (BOTH SIDES)

NON-

HEARTH

A

COMBUSTIBLE

EXTENSION

B

 

 

A

B

Cerona-36

in.

41-1/8

8

mm

1045

203

 

Cerona-42

in.

48-1/8

8

mm

1222

203

 

Figure 11.9 Hearth Extension Dimensions

1 INCH MAX.

TO ALLOW FOR DOOR CLEARANCE

COMBUSTIBLES

 

UP TO 1 INCH

6 INCHES

THICK ALLOWED

MINIMUM

UNDER THE OPENING

 

8 in. min. (203 mm)

1 in. max.

(25 mm)

COMBUSTIBLE

MARBLE, GRANITE, TILE OR

OTHER NON-COMBUSTIBLE

SURFACE

HEARTH EXTENSION

BOTTOM OF FIREPLACE

BOTTOM OF

FIREPLACE

Figure 11.8 Fireplace raised a minimum of 6 inches away from combustible surface.

Figure 11.10 Fireplace sitting on combustible surface.

38

Heat & Glo • Cerona-36, Cerona-422106-900 Rev. H • 11/08

Page 38
Image 38
Hearth and Home Technologies CERONA-42 owner manual Fireplace sitting on combustible surface