OUTSIDE COMBUSTION AIR PRECAUTIONS AND RECOMMENDATIONS

The use of outside air for combustion is optional unless required by building codes. It is only necessary to supply outside combustion air to one side of the fireplace. Use the model AK4 combustion air kit.

MODEL AK-4 COMBUSTION AIR ASSEMBLY

1.Remove the cover plate from the 4" outlet opening location on the left or right outside of the fireplace.

2.Place the insulation ring between the AK-4 starting collar and fire- place wall.

WARNING

DO NOT remove the cover if the outside air will not be connected.

3.Place the starting collar (4") into the hole on the side of fireplace. Fasten it in place with the four sheet metal screws provided. See Figures 32 and 33.

Note: The air starting collar extends through the fireplace outer wrap. When the air starting collar is securely attached, it will form a seal against the fireplace wall.

4. Attach outside duct to starting collar with duct clamp or screws. See Figure 33.

 

Left Side of

Insulation Ring

 

 

 

 

 

Fireplace

 

Screws

 

Air Starting

 

AK-4 Starting

 

 

 

 

 

 

 

Collar

 

 

Collar

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Duct

 

 

Sheet

 

 

 

 

 

 

Meal

 

 

 

 

 

 

Screws

 

 

 

 

 

 

Shorter End

 

 

Left Side of

 

 

 

 

 

Fireplace

 

 

 

of Air Starting

 

 

 

 

 

 

Collar

 

Figure 33 - Attaching Outside Duct

Figure 32 - Attaching Outside Air Starting Collar

 

 

to Starting Collar

 

 

 

 

 

 

and Insulation Ring to Left Side of Fireplace

 

6" Diameter

 

 

 

 

 

 

 

 

5. Cut a 6-inch diameter opening for model AK-4 in the outside

Hole

 

Screw

 

 

 

wall covering where the outside vent is to be located. See

 

 

 

 

Figure 34.

 

 

 

 

Nail

6. Select and cut a piece of duct long enough to attach to the

 

 

 

 

Holes

 

fireplace and stick out at least 3" beyond the face of the wall

 

 

 

 

 

 

 

to which the AK-4 inlet air vent will be attached. Cut duct

Duct

 

 

 

with a standard pocket knife. See Figure 33.

Extending

 

 

 

 

 

 

 

WARNING

 

 

 

3"min.

 

 

Use FP-4 U duct for maximum efficiency

 

 

AK-4 Inlet

 

 

and safety. Do not use a combustible

 

 

Air Vent

Screws

 

duct. Always use UL Listed Class 0 or

 

 

 

 

 

 

 

 

 

1 duct material.

 

Figure 34 - Combustion Air Assembly for

 

 

 

 

 

Model No. AK-4

 

 

 

 

 

 

 

Continued

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Martin Fireplaces 400BWBCA, 400BWBIA, 400BWBA Model AK-4 Combustion AIR Assembly, Insulation Ring to Left Side of 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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