MH-0355-0MDH Available in both propane and natural gas, the Elite Series directional heaters are ductable and great for large or small area applications. Providing worry-free heating or air circulation for wide areas, the Elite Series 21526 are perfect for tents, party applications and construction sites. Frame: Durable powder coated outer casing and side lifting handles Components: Thermostat control with 20-foot cord · 15-foot hose and regulator assembly · Independent fan and burner controls for simple operation · Totally enclosed flame · Electronic ignition · Operates as a fresh air circulator or a heater Specifications subject to change without notice. Use in accordance with any and all state or local codes, regulations and /or ordinances. Please see heater "Owner's Manual" included with each heater for a complete list of important safety information. These specifications are estimates only. Important Notes: ·Not for use in residential living area or inadequately ventilated areas ·Proper ventilation required during operation ·Extremely hot during operation. Keep children, animals and all combustible objects away from heater. Natural gas regulator is required to run heater on natural gas, for gas supply pressures between 1/2 and 5 lb. of pressure (Part #68-5009). Available as an accessory.