Product Description: Propane Gas Convection Construction Heater - Dayton E47 features 200,000BtuH of heating capacity, runs on LP gas type, and covers up to 5000 sq. ft. The E47 is ideal for construction sites, barns, garages, workshops and other well-ventilated or outdoor areas, warehouses. Convection Construction Heater, Gas LP, Piezo Electronic Ignition. 200,000 BTU. Heats up to 2,000 Sq. Ft., 360 degree convection heating radius. 10' hose and regulatory assembly. Large sturdy base. Variable Heat Settings Knock-down assembly for easy storage. Manual Piezo electronic ignition