... Material: Cordierite. Infrared ceramic plaque used in gas stove, oven, radiator, BBQ stove, grill. Save energy up to 40~50% ... High thermal efficiency, economical and practical, the cost of gas consumption can save 50% than electricity.3. Easy installation ... and simple. Infrared ceramic plaque for BBQ stove, gas burner, gas oven, gas water heater, gas furnace, gas cooker, gas stove, gas heater, c