FLOOR PROTECTION

The ability of insulating material to retard the transfer of heat may be expressed as either Thermal Conduc- tance (C), Thermal Conductivity (K), or Thermal Resistance (R). The mathematical relationship of these values and the formulas for converting one value to another is as follows:

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

16"

(Example R = 1/2 (.50) divided by .43

(MIN)

R = 1.16)

 

 

FIGURE 12

 

 

FIREPLACE

HEARTH EXTENSION

 

FIGURE 11

52"(MIN)

METAL

SAFETY

STRIP

8" MIN.

8" MIN.

16"

MIN.

 

 

FLOOR LINE WITH

METAL SAFETY STRIP

 

 

RAISED HEARTH.

 

WARNING: THE HEARTH EXTENSION AND THE METAL SAFETY STRIP

SHOULD BE INSTALLED ONLY IN A HORIZONTAL RELATIONSHIP TO

THE FIREPLACE, AS ILLUSTRATED.

With either type hearth extension 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. To help prevent the crack from developing, the hearth extension materials must be firmly fastened in place. Wall ties should be screwed to the face of the fireplace and imbedded in the mortar joints of brick, stone, or other non- combustible materials. The metal safety strip packed with the fireplace must be placed beneath the fireplace and extended under the hearth extension or into a mortar joint of the hearth extension as shown by Figures 10, 11, and 12. In the event a crack does eventually develop, the metal safety strip will serve as a barrier to prevent sparks or embers from falling from the fireplace onto combustible flooring materials.

The hearth extension must not block the side air vents, or air inlet louvers on the lower front of the fireplace. These openings must be unobstructed to assure an adequate flow of cooling air around the firebox. If the fireplace is equipped with a blower, or may be equipped with one at a later date, the hearth extension must not prevent the removal of the lower louver panel for servicing the blower. Plan adequately by determining the finished height of the hearth extension to be used and elevate the fireplace on a platform, if necessary, to prevent obstructing the air openings or lower louvered panel.

11

53D9033. Rev 1 03/03

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Monessen Hearth SWB400I instruction manual Fireplace Hearth Extension
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SWB400I specifications

The Monessen Hearth SWB400I is a versatile and efficient gas fireplace insert designed to enhance the aesthetic appeal and comfort of any home. It is an ideal solution for homeowners looking to upgrade their existing wood fireplace or transform an unutilized hearth into a modern, functional heating source.

One of the key features of the SWB400I is its impressive heating capacity. This insert can produce up to 40,000 BTUs, effectively warming areas of approximately 1,500 square feet. This makes it a powerful option for larger living spaces, ensuring consistent comfort during the colder months. The unit is equipped with a patented dual burner system that provides a realistic flame presentation while maximizing efficiency. Its efficient design means that users can enjoy a warm ambiance without worrying about excessive fuel consumption.

The Monessen SWB400I also boasts an advanced electronic ignition system, ensuring reliable starts every time. This technology eliminates the need for cumbersome matches or lighter fluid, making it user-friendly. In addition, the fireplace insert includes a built-in thermostat control, allowing homeowners to maintain the desired temperature with ease.

Another notable characteristic of the SWB400I is its customizable aesthetic options. Homeowners can choose from a variety of decorative fronts, including traditional and contemporary styles, to seamlessly integrate the insert into their home’s decor. The unit also features multiple media options, such as logs or contemporary glass pebbles, providing a personalized touch to the fireplace’s appearance.

Safety is a top priority with the SWB400I. It is equipped with a safety pilot system that automatically shuts off the gas supply in case of an emergency, ensuring peace of mind for users. Additionally, the fireplace insert comes with a removable safety screen that prevents accidental contact with the hot glass surface.

In summary, the Monessen Hearth SWB400I is a powerful, stylish, and efficient gas fireplace insert that combines innovative technology with customizable features. Its ability to produce significant heat, easy-to-use ignition system, and various aesthetic options make it a desirable addition to any home. Whether you're looking to increase your home's warmth or enhance its visual appeal, the SWB400I is an excellent choice for homeowners seeking quality and performance.
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