A caldarium is a type of room found in ancient Roman baths, designed for hot bathing. It typically featured a heated floor and walls, allowing bathers to enjoy a warm environment. The temperature in a caldarium was usually maintained between 40 to 50 degrees Celsius (104 to 122 degrees Fahrenheit), providing a relaxing experience. In Roman bath complexes, the caldarium was often situated next to the tepidarium (warm room) and the frigidarium (cold room). This arrangement allowed bathers to transition between different temperatures, enhancing their bathing experience. The caldarium was an essential part of Roman social and wellness culture.