"Frequently Asked Question #11  WHAT KIND OF FUEL IS USED?  Propane is used and is kept in pressurized tanks on the floor of the basket. The balloon carries 30 to 40 gallons of liquid propane. It is carried under pressure and passes to the burners through flexible hoses. When the valves are opened, the propane atomizes and is ignited by a pilot light in the burners. The flame may shoot out as much as 10 or 20 feet, making a loud ""whoosh""."
{}