A water heater is a device that heats water for various household needs, such as bathing, cooking, and cleaning. It can be powered by electricity, gas, or solar energy, depending on the model. Most homes have either a tank-style heater, which stores hot water, or a tankless heater, which heats water on demand. Using a water heater makes daily tasks more convenient and comfortable. For example, a hot shower can help you relax after a long day, while hot water is essential for washing dishes and laundry. Overall, a water heater is an important appliance that enhances our quality of life.