DIY Firebrick Panel

Use the measuring tape to get the dimensions of the hearth area, including the hearth, rear and sidewalls. Measure the depth of the heart to the outside edge. Purchase the proper kit. Turn the gas shut-off valve into the "Off" position. Disconnect the gas supply line. Remove the gas log assembly. Place the components in a safe location. Clean the hearth area or other surface for the panel installation. Remove protrusions and sharp objects.

Follow the instructions for preparing the panels. For example, some manufacturers recommend wetting panels before installation. Use the trowel to spread grout over the hearth surface. Press the hearth panel into the mortar. Use two hands when handling the panels. Position the panel in the proper direction based on the design. Do not force the panel into place. Excessive pressure could damage the material.

Spread mortar along the top and bottom edge of the rear wall. The middle portion of the panel does not need mortar because of the gap from the bottom of the wall to the downdraft diverter. Use a placeholder, such as a screw, to keep the panel in place until it cures. Cover the entire rear surface of the side panel with mortar. Install the panel on the sidewall. Insert the panel at an angle; place the bottom edge against the side wall and maneuver the panel flat against the surface.

Tap the panels into place with a rubber mallet. Avoid hitting the panels too hard, which may lead to damage. Do not use the mallet on the rear panel. This could inadvertently knock a hole in the panel in the area of the gap and the rear wall. Follow the same steps for installing the remaining panel.

Apply mortar in the inner seams between the firebricks. Spread mortar along all the joints between the panels. Allow the panels to cure according to the manufacturer's guidelines. Reassemble the gas log unit. Turn the gas valve back to the "On" position. Use a gas leak detection solution to check for leaks in the connections.