Home-use apparatuses for removing heat from body-fat rich tissues and related devices, systems, and methods. One embodiment of the disclosed technology includes a belt which can be worn around a part of the user's body were the user desires to lose body fat. The belt has a pocket which holds a cold pack. The cold pack cools the user's skin and reduces body-fat rich cells in the area where cooling in applied. Because the belt is made of light, flexible material and has no burdensome mechanical or electric parts, the user retains flexibility and mobility while wearing the belt.