Heat & Glo LifeStyle RED40ST Finish and Sealing Joints, Painting, 1 Finishing Details

CAUTION! Risk of Glass Damage and Cuts! DO NOT drill or install any type of screw or fastener into the lower cover panel. Sharp screw or fastener tips may penetrate and break the glass or cause cuts.

The RED40 comes standard with a mesh front. The final fireplace installation can be accomplished by either the “overlap” or “inside-fit” method. Reference Section 13.C regarding installation details associated with the Inside and Overlap Fit methods.

If the final fireplace installation uses the Overlap Method, wall sheathing material 1/2 in thick is specified and can be installed tight to the side finishing flanges and factory- supplied non-combustible board. If the final fireplace installation uses the Inside-Fit Method, additional clearance must be maintained between combustible 1/2 in. thick wall sheathing material and the side finishing flanges. See Section 13.D regarding installation details associated with the Inside and Overlap Fit methods and specified additional non-combustible materials required.

When finishing the wall around the fireplace, it is critical that wall sheathing be fastened properly. Wall sheathing fasteners, such as screws or nails, are not permitted in some locations. See Figure 13.2. It is acceptable to pre-drill holes and use self-tapped screws in the factory- installed non-combustible board which may be used to lathe (a backer for tile, marble, etc.) Screws being installed through the factory-installed non-combustible board should be self-tapping type with a maximum length of 2 inches. See Figure 13.2. Do not drill or install screws which may penetrate the lower cover panel as this will restrict required access to the glass and lower control chamber. See Figure 13.1.

The appliance is designed to mate with 1/2 in. wall sheathing materials such as drywall, plywood, wood composites, or non-combustible materials. The type of material used depends whether the installation is an Inside or Overlap Fit method. Reference Section 13.C regarding installation details associated with the Inside an Overlap Fit methods.

Verify that the lower cover panel is installed correctly, and that there are no screws used to attach drywall to the panel.

	33-1/2 IN. HEIGHT
	FACTORY INSTALLED
	NON-COMBUSTIBLE BOARD
SIDE FINISH NON-COMBUSTIBLE
BOARD (2)
47 IN. WIDTH
FACTORY INSTALLED NON-COMBUSTIBLE BOARD
= NO SCREWS IN THIS AREA	= 2 IN. MAX. SCREW LENGTH

Figure 13.1 Finishing Details

Note: It is acceptable to use a high temperature silicone sealant to adhere drywall to lower cover panel.

Finish and Sealing Joints

All joints between the finished wall sheathing and the ap- pliance must be sealed with non-combustible materials. Sealants, such as caulk or mastic used to seal the gap between the wall and the fireplace, should be rated at a minimum continuous exposure to 300ºF.

Finishing Around Opening with Gypsum Wallboard

Gypsum wallboard (drywall) joints adjacent to the fire- place opening, including the non-combustible board on the appliance, require special attention to minimize crack- ing. When installing gypsum wallboard around the fire- place, install the hole for the fireplace opening in a single wallboard sheet, if possible. This will minimize the joints adjacent to the fireplace opening.

Tape wall board joints around the fireplace opening with fiberglass-mesh tape. It will provide a more crack-resis- tant joint than paper tape. Fill, smooth and finish wall joints with chemically setting-type joint compound. It will provide a more crack-resistant joint than air-drying light- weight compound.

Painting

If desired finishing includes a painted wall, 100% acrylic latex with compatible primer is recommended around this appliance. Oil-based or standard acrylic paints may dis- color due to heat exposure.

Heat & Glo • RED40, RED40ST • 2155-900 Rev. o • 7/12 53