Heat Storm HS-1500-ISM Infrared Cabinet Heater, Oak This portable 1500 watt infrared heater has the power to heat up to 1000 sq. ft (w/supplemental heating) with its 5200 BTU heat output. Our patented heat exchanger with HMS Technology combines with humidity in the room to provide soft, safe heat without reducing oxygen or humidity. Small convenient size makes this perfect for any room in the house. Optional castors make it easy for you to move from room to room or wherever you may need some extra heat. Energy Efficient mode, reduces wattage from 1500 to 750. Built in thermostat with LED display shows you what the ambient temperature is and helps regulate the temperature efficiently. Included remote control allows you to control the temperature with ease. This heater comes with a 1 year manufacturer warranty