Why does wood cook stove have water tank mounted on side?

A wood cook stove often has a water tank mounted on the side to utilize the heat generated by the stove for heating water. This setup allows for efficient use of energy, as the stove's heat can warm the water for cooking, cleaning, or bathing. Additionally, having a water tank provides a convenient source of hot water readily available for various household needs. This integration enhances the overall functionality and efficiency of the wood stove in a home.