Heatiator C40 C. Frame the Fireplace, Minimum Clearances To Combustibles, Within Enclosure Area

1. MINIMUM CLEARANCES TO COMBUSTIBLES

WITHIN ENCLOSURE AREA:
Appliance to backwall	1 in. (25 mm)
Appliance to sidewall	1 in. (25 mm)
Duct boots to framing	0 in. (0 mm)
Top standoffs to header	0 in. (0 mm)
Door opening to sidewall	22-7/8 in. (581 mm)
EXPOSED SURFACES
Faceplate to sidewall	16 in. (406 mm)
Heat zone air grills to ceiling	12 in. (305 mm)

MANTEL

Combustible and non-combustible mantel minimum height from base of fireplace to underside of mantel

	60 in. (1524 mm)
Maximum mantel depth	12 in. (305 mm)

2.Reduced Mantel Height / Optional Framing Construction Required:

Non-combustiblemantel material minimum height from base of fireplace to underside of mantel 46 in. (1168mm) when the following enclosure construction materials are used:

Non-combustible framing materials must be used above fireplace to height of 84 in. (2134mm) from base of fireplace for all construction materials, fram- ing members, sheeting, and all finish materials.

3. NON-COMBUSTIBLE MATERIALS

Materials which will not ignite and burn. Such materials are those consisting entirely of steel, iron, brick, tile, con- crete, slate, glass or plasters, or any combination thereof.

Warning Fire Risk!

Non-combustbile mantels installed at a reduced height may GET EXTREMELY HOT during use of the fireplace.

DO NOT TOUCH or place heat sensitive combustible items on the mantel

5. CHIMNEY SECTIONS

Chimney sections at any level require a 2 in. (51 mm) minimum air space clearance between the framing and chimney section.

C. Frame the Fireplace

NOTICE: Wiring for fans must be done before framed enclosure is completed. If using a Heat Zone kit, it also must be installed before enclosure is complete.

The Constitution Fireplace will fit a framed opening height of 43-7/8 in. (1114 mm) tall and width of 42 in. (1067 mm). The finished cavity depth must be no less than 24 in. (610 mm). Framing must extend straight up all the way to the ceiling.

Figure 6.3 shows a typical framing (using 2 x 4 lumber) of the fireplace, assuming combustible materials are used. All required clearances to combustibles around the fireplace must be adhered to. See Figure 6.2 on page 36. Any fram- ing across the top of the fireplace must be above the level of the top standoffs. (No recess above standoffs.)

2 in.

(51mm)

Materials that are reported as passing ASTM E 136, Stan- dard Test Method for Behavior of Materials, in a Vertical Tube Furnace at 750°C, shall be considered non-combus- tible materials.

4. COMBUSTIBLE MATERIALS

Materials made of (or surfaced with) wood, compressed paper, plant fibers, plastics, or other materials that can ig- nite and burn, whether flame proofed or not, or whether plastered or un-plastered shall be considered combustible materials.

Warning Fire Risk!

43-7/8 in.

(1114mm)

24 in.

(610mm)

12 in.

(305mm)

Position combus- tible / non-combus- tible mantel 60 in. (1524mm) from base of the fireplace

42 in.

(1067mm)

Hearth & Home Technologies is not responsible for dis- coloration, cracking or other material failures of finished materials due to heat exposure or smoke.

Choose finishing materials carefully.

Figure 6.3 Framing the Fireplace

4/12 Heatilator • Constitution EPA Fireplace • 480-1091H Page 37