Things You'll Need
Infrared grill grates
Jigsaw with carbide-tipped blade, table saw or band saw
Vise or clamp
You can leave the old grill grates in place and lay the new grates on top of them; however, this may increase cooking times.
Save the old grates so you can switch back and forth between cooking methods as desired.
Infrared grills use radiant heat to cook. The flame from the burner heats up the ceramic grill grate; then the food is set on the grate and cooked via the heat transferred to the grate. Unlike normal grill grates, infrared grates have large ridges that keep the food from resting directly on the grate and close to the flame. If you have a grill, you do not need to purchase a new grill to cook with infrared technology; you can convert your current grill instead.
Remove the existing grates from your grill. Most grates lift up and off the grill but refer to your owner's manual if you have difficulty removing the old grates.
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Measure the length and width of the grill grates with a measuring tape.
Purchase infrared grill replacement grates online or at a store that sells grilling accessories. Depending on the size of your existing grill, you can purchase grates that are the exact fit, grates that are slightly larger and can be cut down to size or grates that are 1 to 2 inches smaller than the existing grates.
Cut the grates down to size, if necessary, with a jigsaw equipped with a carbide-tipped blade, table saw or band saw. Measure and mark the new grates to ensure the proper length then put on safety goggles before cutting them. If you want to use heat convection, cut the grates 1 to 2 inches shorter than the original grates. Depending on which saw you are using, you may need to mount the grate in a vise or clamp to hold it in place while making the cut.
Lay the new infrared grill grates onto your grill top in the same mounting location as the old grates.