HeatStar's Portable Natural Gas Convection Heater F170485 requires no power and provides temporary heat to various industrial / commercial workplaces up to 1,400 sq ft. This natural gas heater features a standing pilot for increased safety, adjustable heat output and is rugged, convenient and ready to use. The F170485 has a telescoping chamber reducing ship cube / retail space used and an 'Insta-Lock' System for easy assembly that requires no tools. A piezo push button ignitor is also included. The F170485 is CSA Certified.