Quickchange gas insert is a 25,000 BTU infared stainless steel burner with a piezo ignition with built-in thermocoupler for safety. High, medium, and low settings. Easily slides in to replace ash drawer for gas grilling. Includes: stainless steel infared heat exchanger, lava stone heat diffuser, stainless steel bracket, and caddy cart for propane tank with rolling caster.