The HeatStar 250,000 BTU Separated Combustion Unit Heater is your heat solution for factory or farm. The unit heater provides 250,000 BTU of efficient heat to cover areas up to 8,400 sq ft. Using fresh air from outside the building, the heater can be used in humid or corrosive areas, giving you an option for greenhouses or chemical factories. It can also be installed in a standard combustion configuration for versatility. A stainless steel heat exchanger gives more protection in humid atmospheres. The air louvers have three locking positions to direct heat where it is needed. Keep your workplace with the HeatStar 250,000 BTU Separated Combustion Unit Heater.