Variation: Curved, Large Radius Wall with Facade Extensions & Hood

These illustrations refer to a façade on a Mt. Adams 5′ gas/gas (RFG-IR) oven.

Keep in mind as you read through this tutorial that we make Facade Extensions that can make much of this installation process easier. Be sure to view our Facade Extension page for details.

Note: Click on the individual graphics for close up views. Please be patient, some graphics have large file sizes (50-100K).

Step 1. The Base Oven

Figure 1.1 represents a WS-MS-5-RFG-IR oven which shipped with an optional Curved, Large Radius Doorway Facade Extension mounted at the factory.

For more details on how the oven arrives from the factory, please visit our Unloading & Moving page.

Figure 1.1
Figure 1.2
In figure 1.2 the Storage Box Facade Extension is mounted.It will have been pre-aligned with the Doorway Extension at the factory and then removed for shipping ease.

Figure 1.2
Figure 1.3
Our Mountain Home ovens can be either direct vented or vented with a Hood. Please see your Installation and Operation manual for more details on which is appropriate for your installation.In this example we assume a hood is required. Mount the Hood to the oven as seen in Figure 1.3 using the mounting flanges (see Mounting Detail).
Figure 1.3

Step 2. Stud Wall

Here the stud wall is built (in green). Metal studs are recommended. Consideration must be given to the wall framing position to insure the minimum one-inch offset from the back of the wall surface (sheetrock) to the oven sheet metal (see Offset Detail).

It is also recommended that you fabricate a Trim Piece to connect the wall to the top of the oven, thus keeping grease from dripping down from the hood to in-between the oven and facade wall (Trim Detail).

It is critical that when the hood is mounted and the wall is built there is a minimum of 8″ of overhang by the hood in front of the facade for access to the filters. Without this access the hood will be unreachable and thus cannot be cleaned. This can create a very dangerous situation. Adequate clearance is a must (see Filter Removal Detail).

In addition, the studs on either side of the doorway must be far enough apart so that when sheet rock and tile are installed, the Storage Box Facade Extensioncan still be removed for oven service. For more info, see the Panel Detail.

Note the control box comes mounted to the leg of the oven when a Storage Box Facade Extension is ordered but can remounted in a different position.

Step 2 Alternative Views:
Front Elevation Side Elevation Plan View

Step 3. Non-Combustibles

Seen here inyellow is the non-combustible wallboard. This is required above the oven doorway and 6″ on either side of the doorway.

Non-combustible material is also required anywhere the façade touches the oven or the mantle. In this illustration, the non-combustible wallboard is used as flashing from the studs to either side of the service panel and contacts the edge of the mantle.

Usually a cement board is used for this application. Brand names of appropriate underlayment include Wonderboard and DUROCK. (Drywall is considered a combustible and should not be used).

Step 4. Adding Drywall

Shown in lighter yellow is the drywall applied to the stud wall. This portion does not need to be non-combustible.

For the sake of simplicity of construction, many installers choose to make the entire wall out of the non-combustible cement board mentioned above as to avoid cutting many oddly shaped segments.

Please note here the Airflow Detail. Sufficient combustion air for the oven’s burners must come front the front of the house.

Step 5. Finishing

Drywall can be finished with any decorative material that can be easily affixed to the wall surface such as tile, stucco, sheet metal, brick etc.

Note: It is necessary for the proper operation of our ovens that the Radiant Flame Control Knob be fully accessible after all finishing is completed. Please see the Radiant Knob Detail. This knob controls temperature in our gas ovens, if you cannot adjust the knob you cannot adjust the temperature.

To see how some other Wood Stone customers have finished their ovens, please visit the Installation Photo Gallery.


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