Hearth and Home Technologies FB-GRAND-S Fireplace Size Requirements, Minimum Fireplace Opening

3 Fireplace Size Requirements

A. Minimum Fireplace Opening

Minimum fireplace opening requirements are shown in Figure 5.1.

WARNING! Risk of Fire or Burns! Provide adequate clearance around air openings and for service access.

Due to high temperatures, the appliance should be locat- ed out of traffic and away from furniture and draperies.

•The firebrick (refractory), glass doors, screen rails, screen mesh and log grates can be removed from a factory built firebox in order to gain minimum gas insert opening requirements.

•Any smoke shelves, shields and baffles may be removed from the factory built firebox if attached with mechanical fasteners.

•The metal floor of the solid fuel firebox may be removed to facilitate the installation of the insert. The appliance may not be placed directly on the base of the outer wrap, a 1/4 inch airspace must be provided between the insert and the floor of the outer wrap. Use the levelling legs to raise the insert a minimum of 1/4 inch. The original fireplace may never be returned to solid fuel in this condition. The sidewalls and top structure of the firebox may not be altered with the exception of removable baffles and dampers.

•Cutting of any sheet metal parts of the fireplace in which the gas fireplace insert is to be installed is prohibited, except the floor as tested for and as noted above.

NOTE: For actual appliance dimensions refer to Section 15.

B

2 in.		TOP VIEW	C	FRONT VIEW
50.8 mm			D
		A
		MINIMUM FIREPLACE SIZE
	Location	FB-GRAND-S			FB-IN-S
		Inches	Millimeters	Inches	Millimeters
A	Front Width	35	889	30-1/4	768.4
B	Rear Width	22-5/8	574.7	19	482.6
C	Depth	14-1/8	358.8	14-1/8	358.8
D	Height	25-3/4	654	22-1/2	571.5

*NOTE: If exhaust collar on insert and fireplace damper do not line up, add 4 inches (102 mm) to minimum fireplace height for bends in vent pipe.

Figure 3.1 Fireplace Opening

Heat & Glo • FB-IN-S, FB-GRAND-S • 783-910 Rev. G • 11/08 7