Airindependent installations are not only the classical system operating with the supply of gaseous or liquid air or oxygen, but the system working from alternative energy sources that do not require oxygen. In low-temperature combustion installations not the electric energy but heat is used, as a rule, as an energy supply source. Development of airindependent low-temperature combustion installations can be based on several thermodynamic cycles, on different energy sources, different types of low-temperature machines for various applications. For the correct choice of such installations their systematization should be done. Airindependent low-temperature combustion installations based on pulse tubes and thermoacoustics are the most promising ones for space and water transport. They could have no mechanically moving parts and components that ensures their long operating life, high reliability, minimal noise and vibration. For such installations any kind of energy may be used, they does not require maintenance.