401/8" (400 Unit)
461/8" (500 Unit)

FLOOR PROTECTION

INSTALLING FIREPLACE ON COMBUSTIBLE FLOOR (CONTINUED)

This hearth extension must be either 6" (minimum) thick stone or brick; a H1652 (400 units) or H2066 (500 units) Hearth Extension Kit; or a locally constructed hearth that has a “K” factor less than .43 and at least ½" thick. For other non-com- bustibles, the total thickness minimum is 1.16 times its thermal conductivity (K).

The following relations could be useful —

C = K divided by the material thickness (Example C = .43 divided by 1/2 (.50)

C = .86)

K = C multiplies by the material thickness (Example K = .86 multiplied by 1/2 (.50)

K = .43)

R = The material thickness divided by K (Example R = 1/2 (.50) divided by .43

R = 1.16)

C = Thermal Conductant

R = Thermal Resistance

Minor shifting of the supporting floor or expansion and contraction may eventually cause a crack to develop between the hearth extension and the face of the fireplace with either type hearth extension. To help prevent the cracking, firmly fasten the hearth extension materials in place. Screw wall ties to the face of the fireplace. Imbed the wall ties in the mortar joints of brick, stone, or other non-combustible materials.

Place metal safety strip packed with the fireplace beneath the fireplace. Extend metal safety strip under the hearth extension or into a mortar joint of the hearth. See Figures 6

 

401/2"

16" Min.

211/2"

 

(400 Unit)

 

20" Min.

 

(500 Unit)

 

 

 

52" (400 Models)

66" (500 Models)

Gas

Opening

Junction

Box

Opening

Floor

Level

21"

Safety Strip

3"x36" Min. (400 Unit)

3"x42" Min. (500 Unit)

through 9. If a crack does eventually develops, the metal safety strip will prevent sparks or embers from falling from the fireplace onto combustible flooring materials.

Figure 8 - Installing Hearth Extension

(Circulating Model Shown)

Fireplace

16"min. - 400 unit 20" min. - 500 unit

Hearth

8" 8"

WARNING

Only install metal safety strip horizontal to the fireplace.

 

Metal

Figure 9 - Installing Hearth Extension and Metal Safety Strip

Safety Strip

12

61D0008

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Martin Fireplaces 400BWBIA, 400BWBCIA, 400BWBA, 400BWBCA Only install metal safety strip horizontal to the fireplace
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400BWBCA, 400BWBCIA, 400BWBIA, 400BWBA specifications

Martin Fireplaces has established a reputation for crafting high-quality, innovative heating solutions that seamlessly blend function and style. The models 400BWBCIA, 400BWBA, 400BWBIA, and 400BWBCA showcase the company’s commitment to excellence in design and performance in the realm of modern fireplaces.

One of the standout features of these models is their sleek, contemporary design that fits perfectly in both traditional and modern home settings. The 400BWBCIA and 400BWBA are designed with an emphasis on a clean face appearance, eliminating any visible frames or trim to provide a minimalist aesthetic. This clean design maximizes the viewing area of the fire, creating a striking focal point in any room.

Each model is equipped with advanced technologies that enhance user experience and efficiency. The Martin Fireplaces utilize a high-efficiency wood-burning system, which not only produces ample heat but also ensures that the emissions are minimized. This eco-friendly approach aligns with contemporary standards for sustainability, making the models an excellent choice for environmentally conscious consumers.

The linear burner design found in the 400BWBIA and 400BWBCA models allows for a larger flame presentation, creating a mesmerizing effect. This design also optimizes heat output, ensuring that the warmth spreads evenly throughout the space. Additionally, the inclusion of glass doors ensures that the flames remain contained while still allowing for an unobstructed view.

Safety is another priority for Martin Fireplaces, and these models integrate several features to promote secure operation. The built-in air wash system keeps the glass clean, enhancing visibility of the flames while reducing maintenance efforts. Moreover, the combustion chamber is engineered to ensure a safe, efficient burn, protecting both the user and the environment.

The versatility of installation is another key characteristic. Both the 400BWBCIA and 400BWBA can be installed as direct vent units, allowing for flexible placement in a variety of settings. Meanwhile, the 400BWBIA and 400BWBCA are perfect for builders looking to integrate contemporary fireplaces into their designs without compromising floor space.

In conclusion, Martin Fireplaces’ 400BWBCIA, 400BWBA, 400BWBIA, and 400BWBCA models are exemplary representations of high-efficiency heating solutions that marry design, technology, and safety. With features that enhance both performance and aesthetics, these fireplaces are ideal for any modern home looking to add warmth and sophistication.
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