If you need powerful heat in an instant this oil fired radiant heater should fit your bill. BTU Output 125 000 Heating Capability sq. ft. 3 125 Full Load Run Time Hours 16 13/16 Fuel Capacity gal. 16 Fuel Type Kerosene Fuel Consumption gal./hr. .95 Dimensions L x W x H in. 26 x 27 x 34 1/3 Includes safety shut off system.