A fluid warming device may include a housing comprising a main body, a heat exchange body receiving compartment, and a cover movably coupled to the main body between an open position and a closed position； a heater assembly disposed within the main body and having a heat conducting surface disposed proximate the heat exchange body receiving compartment； and a heat exchange body removably disposable in the heat exchange body receiving compartment of the main body and having an input port and an output port to couple the heat exchange body to tubing to flow a fluid to be warmed through the heat exchange body. In another aspect, a fluid warming system increases or decreases power to a heater assembly to adjust the fluid temperature to ensure that the fluid is at an appropriate temperature when it reaches the patient.
