Focus heat where you need it with the only true infrared spot heater on the market - the HotZone® heater by Schaefer Ventilation. The HotZone® heater features high-intensity infrared sources and the patented lobster-eye IRLens™ which focuses three to five times more infrared energy into the center of the beam than heaters without lenses. This revolutionary design makes HotZone® the most energy-efficient infrared heater on the market today.