FIREPLACE OPENING

15-7/8 IN. TO 16-1/8 IN.

Figure 13.4. Required Fireplace Opening Height

Verify that the lower cover panel is installed correctly, and that the fi replace opening height is between 15-7/8 in. and 16-1/8 in. See Figure 13.4.

Note: The lower cover panel must be pushed all the way down. The fi replace opening must be between 15-7/8 in. and 16-1/8 in. for the decorative fronts to fi t correctly. See Figure 13.4.

Finish and Sealing Joints

All joints between the fi nished wall sheating and the appliance must be sealed with non-combustible materials. Sealants, such as caulk or mastic used to seal the gap between the wall and the fi replace, should be rated at a minimum continuous exposure to 300°F. Wall board joints can be taped and sealed with combustible drywall tape.

Finishing Around Opening with Gypsum Wallboard

Gypsum wallboard (drywall) joints adjacent to the fi replace opening require special attention to minimize potential development of cracking. Hearth and Home Technologies recommends the following steps to minimize potential cracks in the fi nished drywall around the fi replace opening:

•When installing gypsum wallboard around the fi replace, install the hole for the fireplace opening in a single wallboard sheet, if possible. This will minimize the joints adjacent to the fi replace opening.

•The factory-supplied non-combustible board and the gypsum wallboard must join on the structural framing, where applicable. Wallboard and non-combustible board should be fastened to the framing with at least 1-1/4 in. long screw fasteners, located within 1-1/2 in. from each corner, and at no more than 12 inch intervals along the joint length.

•The wall-board joints should be fi nished with a Taping Coat, followed by at least two subsequent Finish Coats of joint compound.

•For the initial Taping Coat, it is critical that a general- purpose chemically hardening joint compound, such as SHEETROCK™ Brand Durabond™ Setting-Type Joint Compound, be used to fi ll the joint and embed the mesh tape. Fiberglass-mesh tape is recommended because it will provide a more crack-resistant joint than one finished with paper tape. Let the Taping Coat properly cure before applying subsequent Finish Coats.

•For the second and third fi nishing coats, it is acceptable to use a light-weight joint compound and standard application, curing and sanding methods.

•Do not operate the fi replace during the drywall finishing process. Allow the fi nish coat to cure for at least 24 hours prior to using the appliance.

Painting

If desired fi nishing includes a painted wall, 100% acrylic latex with compatible primer is recommend around the appliance. Oil-based or standard acrylic paints may discolor due to heat exposure.

Wallboard Joint-Crack Prevention and Repair

Wallboard joints around the fi replace will be affected by exposure to elevated temperatures, along with other environmental and structural factors. The specific methods presented in the previous section will help prevent or minimize development of cracks.

If a crack does emerge adjacent the fi replace, it can be permanently repaired by fi lling it with spackling paste or paintable latex caulk, followed by repainting.

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Heat & Glo • SLR-B • 2195-900 Rev. P • 12/11

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Heat & Glo LifeStyle SLR-B (COSMO) Finish and Sealing Joints, Finishing Around Opening with Gypsum Wallboard, Painting
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SLR-B (COSMO) specifications

The Heat & Glo LifeStyle SLR-B (COSMO) is a revolutionary gas fireplace that embodies modern design while prioritizing efficiency and sophistication. Known for its sleek lines and contemporary aesthetic, the SLR-B blends seamlessly into various home décors, making it a popular choice among homeowners who value both style and functionality.

One of the standout features of the SLR-B is its panoramic viewing glass. The expansive front glass panel offers an unobstructed view of the flames, creating a stunning focal point in any room. This design not only enhances the ambiance but also allows for a more radiant heat output, efficiently warming the space while inviting a captivating visual element into the home.

The SLR-B utilizes advanced burner technology, which ensures a clean and efficient burn, producing realistic flames that mimic the look of natural wood fires. The unique firebox design enhances combustion efficiency, maximizing heat output while minimizing emissions. This aligns with modern environmental standards and provides homeowners with peace of mind regarding their energy consumption.

Compatibility with home automation systems is another attractive aspect of the SLR-B. With options for remote control and smart technology integration, users can control the fireplace settings from anywhere in the home, providing convenience and comfort. The inclusion of adjustable flame height adds personalization, allowing users to create the ideal atmosphere based on their preferences.

Safety is paramount in the design of the SLR-B. The fireplace comes with a sealed combustion system, which prevents drafts and enhances indoor air quality by minimizing the infiltration of outside air. Additionally, an intuitive control system informs users of the fireplace's status and ensures the right operation settings, contributing to a safer user experience.

With customizable media options, including various decorative stones or logs, the SLR-B allows for personal expression, harmonizing the design with individual tastes. This versatility makes it suitable for diverse spaces, from modern apartments to traditional homes.

In summary, the Heat & Glo LifeStyle SLR-B (COSMO) combines cutting-edge technology with aesthetic appeal. Its panoramic design, eco-friendly combustion, smart technology integration, safety features, and customizable options make it a top choice for homeowners seeking a sophisticated heating solution that enhances their living spaces.
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