An apparatus for burning of fuels and explosives

There is provided an apparatus for burning of fuels or explosives which has a trip temperature which is below the autoignition temperature of the propellant or explosive. The device (1) comprises at least two mutually exothermically reacting substances (5, 6), at least a first substance (5) is present below the operating temperature of the device in a liquid state and at least one second substance (6) by at least one pressure-tight barrier (7) is isolated.