What is a portable hot water heater?
 

A portable hot water heater is a compact, lightweight device designed to provide hot water on demand in remote locations, outdoor settings, or situations where traditional water heaters are not practical. These units are commonly used for camping, RVs, outdoor showers, pet washing, or small cabins. They run on propane, electricity, or battery power, depending on the model, and offer a convenient way to enjoy hot water anywhere.