The Empire Indiglo combines the economy of Vent-Free heating with the convenience of a thermostat. Heating without electricity, you can depend on the Indiglo even during a power outage. Add to that the visual appeal of a soft blue flame, 100% efficiency, and a sleek modern design. The controls are top mounted for easy access and you can increase the Indiglo's heat circulation and utility with an optional blower and floor stand.