The Dyna-Glo Portable Forced Air Heater generates instant heat for construction sites, industrial workspaces, agricultural buildings, outdoor sporting events, and other ventilated spaces. Rated at 60,000 BTUs with a 300-CFM blower, heats a maximum of 1,350 square feet for a period of 7 to 70 hours depending on the BTU level selected and the size of the propane tank. This requires electricity to power the motor and fan and it is fueled by a 20, 40, or 100-pound liquid propane (LP) tank (not included). 20 pound tank run time is 7 hours at 60,000 BTUs. 40 pound tank run time is 14 hours at 60,000 BTUs. 100 pound tank run time is 35 hours and 60,000 BTUs. This unit is easy to use with a continuously variable BTU control and adjustable heat angle and it is fully portable with a construction grade handle for easy transport between sites. This heater also includes a construction grade, solid steel base which protects, preventing dust and dirt from collecting inside the unit. It is also more durable than most LP forced air heaters in the market, as the motor is securely mounted to the tube with heavy-duty brackets (not mounted to the rear fan guard). This includes a continuous electronic ignition (to prevent dangerously delayed ignition) and has an integrated overheat shutdown system, to keep you and your project safe. Safety features include auto overheat shutoff protection and an adjustable heat angle to make this heater one of the safest and most reliable heaters on the market. The includes a 10-foot hose and regulator. This product is CSA approved and meets all applicable standards, which cover important safety and quality requirements. The Dyna-Glo Portable Forced Air Heater comes with a 1-year limited warranty that protects against defects in materials and workmanship.