50000 BTU of output puts this in the tall standing class of patio heater rather than the tabletop one, and the heat lands evenly across a 20-foot diameter circle rather than fading two steps from the post. An aluminum reflector at the top is what spreads it that way, while the burner underneath is stainless steel, which is the part that takes the worst of every heat cycle. Starting is press-and-twist, one action rather than a match, and a knob adjusts the flame from there. Safety is layered rather than single: tip-over protection, anoxic protection, flame-out protection, an automatic shut-off that triggers if the unit tilts past 45 degrees, an excess flow valve on the gas line, and a fixing strap that holds the tank firm at the base. The gas tank itself is not included. Stability comes from a wide base pinned with 3 ground stakes, while built-in wheels take over when the heater has to move, so a 31-pound column can be walked to where the people are instead of carried. Standing 86 inches tall on a 32.5 inch base in a black finish, it is built from stainless steel, metal and aluminum for outdoor patios, gardens and terraces. Assembly is required, and the carton holds the heater and an instruction sheet. Specification: Color: Black/Bronze/Gray; Material: Stainless Steel Metal Aluminum; Dimensions: 32.5" x 86"; Net Weight: 31 lbs; Heat Output: 50 000 BTU Heat Coverage 20 ft; Box Qty: 1; Assembly Required: Yes; Package Includes: 1 x Patio Heater 1 x Instruction; Overall Dimensions: 32.5" x 86"