Propane forced air portable heater. Heats up to 1250 square feet - 30-40-50,000 btus. Requires a minimum of one 20 pound propane tank. Continuous spark ignition. Clean, quite, instant heat. Low maintenance design. Lp regulator included. Requires 110/120 v grounded outlet. Adjustable heat angle, variable heat settings. Built-in safety shuts heater down if electricity or fuel system are interrupted. Cylinder not included.