THIS PORTABLE ELECTRIC POWERED HEATER IS SUITABLE FOR GREENHOUSES CONSERVATORIES AND SIMILAR VENTILATED SPACES THAT REQUIRE SET WARM TEMPERATURES. FLIP-UP METAL HANDLE AND CASTER WHEELS ALLOW EASY MOBILITY WHEN MOVING UNIT TO DIFFERENT LOCATIONS ACROSS AN EVEN SURFACE LEVEL FLOOR. BUILT-IN SENSOR AUTOMATICALLY SHUTS OFF HEATER WHEN UNIT REACHES ABNORMAL TEMPERATURE. LARGE HEAT EXHAUST ALLOWS GREATER COVERAGE RANGE. UNIVERSAL POWER SWITCHES AND DIAL CONTROL OFFER EASE OF OPERATION. CLEARANCE OF 3 FT. RECOMMENDED WHEN STATIONING HEATER.