The disclosure provides systems and methods of use pertaining to a portable rocket-type heating and cooking system. The heating and cooking system features three distinct cooking surfaces designed for simultaneous use and may be dismantled and transported for use in a variety of environments, including use as a heating and cooking device in the home as a fireplace insert, use outdoors in a hiking or camping setting, or use in a developing-world application as a third-world outdoor or indoor kitchen. The heating and cooking system features a combustion chamber and exhaust chimney having optimized dimensions to achieve maximum combustion efficiency, which translates to increased heating and cooking capacities as well as reduced smoke exhaustion. Other embodiments are also disclosed.