Where does your hot water come from?
Most of us have a water heater of some form in the building. The water heater combines cold water, electricity, and sometimes sunlight or gas to produce the hot water on-site. While utility services provide some of the elements needed to obtain the water and heat it, we could not efficiently get any hot water without using an on-site water heating appliance. Subscribing to a hot water delivery service would be very inefficient and expensive by comparison.