Commercial water heaters, designed specifically for business use, are commonly found in restaurants, hotels, schools, grocery stores, hospitals, and other facilities. They provide hot water for showers, sinks, laundry, dishwashers, and even ice dispensers in convenience stores. Sizes of water heaters can vary from small units needing just a single outlet, to large tanks requiring an exhaust hood and multiple outlets. These heaters often include built-in gas or electric heating elements. Removable tanks are also a feature, allowing you to refill the unit with fuel sources as required.