Klarstein Air Infinite, Infrared Heater, 60x50cm, 300W, Wall, FB. TheKlarstein Wonderwall Air Infiniteinfrared heater revolutionises heating with modern technology. And since the Wonderwall only works with heat rays, no dust is whirled up and no noise is generated - this makes it the ideal choice for allergy sufferers and for use in noise-sensitive areas such as offices or bedrooms.