5 .115 BTU heater warms up to 161-269 sq.ft 3D flame effect for more realistic effect The infrared quartz heat helps to maintain the natural humidity in the air . resulting in comfortable heat without drying out the room's Overheat protection . heater will instantly shut off to prevent overheating. Volts : 120. Amps : 12.5 Adjustable . digital thermostat allows you to decide the temperature of your room