These 90" gas patio heaters are built on sturdy 4″ wheels and can easily be moved from one location to another and can be moved to secure storage. 32" wide at the base, these heaters are available in a portable unit [the base holds a 20/30lb propane tank] and a fixed unit, fueled from your natural gas line. The stainless steel enclosure and sleek design blend easily into any restaurant design. The portable line is design certified by CSA International for use outdoors in accordance with current ANSI standards. No heavy lifting required