... ceramic plaque is mainly used in gas-infrared burners, infrared gas stoves, infrared heaters, gas water heaters, gas burner, oven, BBQ and so on ... .3. Windproof, outdoor operation using safely.4. Reduce the harmful gas more than 90%.Main specifications of infrared ceramic plaque: RoundSquareSize ... customized as per client's requirements. Infrared ceramic plaque for gas heater