ARES standard industrial portable multi-fuel heater is an ideal heating solution when heating your job spaces. It offers consistent and reliable heat for a comfortable work site. In addition, its powerful oxygen supply completely burns the fuel for a rapid heating. Due to its excellent heating performance, the heating space of this multi-fuel heater (ALG-L30A) can reach up to 2,100 square feet of your ventilated warehouses, open barns, garages, workshops, construction sites, or wherever you need powerful, dependable heat. And, on a full tank of fuel, this unit can run up to 12 hours.