Heat Output 128,000 BTU/Hr (19.2 Kw). Approx Heating Area 32,143 cu ft (900 cu m). Ideal for use in factories, warehouses, garages, workshops etc. Heavy duty construction. Corrosion resistant, tough stainless steel casing - eliminates rusting and prolongs product life. Plastic fuel tank for long life and no fuel contamination. Automatic operation and flame cutout. Pneumatic direct fired fuel burner. Fitted with stainless steel combustion chamber. Danfoss pump system - more reliable than competitors heaters. External fuel filter means less downtime.