The invention provides a combustion chamber (3) for launching a fireworks projectile which comprises a container (4) having top wall, bottom and side walls, wherein the top wall which comprises venting holes (1). The invention further provides a launching system', a method for launching a fireworks projectile, and a kit of parts comprising the combustion chamber (3) or launching system in accordance with the present invention and a propellant charge (7) for use in the combustion chamber (3).