A hot air balloon is a lighter-than-air aircraft comprised of an envelope (the large bag), a basket (gondola), and a burner system. The envelope, typically made of ripstop nylon or polyester, contains heated air, making the balloon buoyant. Suspended beneath the envelope is the basket, often made of woven wicker or rattan, which carries passengers and propane fuel tanks that power the burner. The burner injects a flame into the envelope, heating the air within.
Hot air balloons come in various sizes, from those accommodating a single person to those capable of carrying over 30 passengers. Several manufacturers produce high-quality balloons, including Cameron Balloons, Kubicek Balloons, Ultramagic, Lindstrand Technologies, and FireFly Balloons. These companies offer a range of standard models and bespoke designs, including special shapes for advertising and events. A new hot air balloon typically costs between $20,000 and $40,000, but can range from $20,000 to over $100,000 depending on size and features. Used balloons may be found for around $10,000, but might need repairs. Hot air balloons are available for private and commercial use.