In certain embodiments, a system for killing pests in an affected area includes a burner for heating a fluid. Heat exchanger units are placed within associated regions of the affected area. Each heat exchanger unit receives the fluid from the burner and emits heated air by transferring heat from the fluid to ambient air within the affected area. Air movers are positioned to circulate the heated air emitted by the heat exchanger units and prevent stratification of the heated air. A temperature difference between the fluid received by the heat exchanger units and the ambient air within the affected area results the affected area being raised to a target temperature greater than 122 degrees Fahrenheit.
