Systems and methods for killing bed bugs and other insects utilizing steam to increase the temperature of an area beyond the bed bugs and other insects thermal death point. Steam created by a steam generator is directed into an area for a sufficient amount of time to ensure that the bed bugs and other insects die. Furthermore, the systems and methods may include a barrier that defines a thermal kill zone which prevents bed bugs and other insects from escaping during treatment. Injection members may be used to more precisely direct steam in specific areas within the thermal kill zone and/or in joints, cracks, or crevices where bed bugs and other insects may be located.
