Having access to hot water is every family's need and before the water heater is bought there is always some considerations made. A tankless water heater is simply a water heater that does not have a storage tank. Just as the name suggests, a storage tank water heater comes attached with a storage tank, which is held at the necessary temperature to supply hot water. These two have some differences even though they achieve the same goal. Their performances vary greatly and the purchase of either of them depends on the buyer's needs. We specialize in water heater service in Antioch, TN, and can consult with you about which heating unit best fits your current plumbing system and needs.
Storage water heaters have insulated walls to prevent heat loss from the water. They are fitted with electric heating elements or gas burners. Even though they are insulated, the water looses the heat because of the temperature difference in the tank and the surrounding environment. As for tankless water heaters, there is nothing to be lost - the water is heated instantly on demand, resulting in much better energy efficiency.
The convenience between these two water heaters differs greatly as they are manufactured differently. The storage water heater is convenient if the family has a tank large enough to serve the whole family. This is because the stored water is limited and if it gets finished, another amount has to be heated before you use it. As the storage water heater operates continuously, water is always hot and can be drawn whenever the family needs it. On the other hand, tankless water heaters are always convenient as the water is heated on demand, offering an unlimited supply of hot water.
Storage water heaters operate continuously even when the water is not needed. The tankless water heater provides consistent hot water supply to the home owners as needed. It is also known as instant water heaters because it heats the water right on demand. However, it has been misunderstood to heat the water instantly because of that name. The truth is, it takes a couple of seconds to heat up the water.
The storage water heaters on the other hand operate continuously ensuring that the water is always hot however the water tank can be depleted leaving the household with cold water until the tank can replenish. In order to provide hot water to the users, the storage tank stratifies with hot water at the top and the cold incoming water at the bottom. This is so as to provide hot water when drawing. Overall, there is much less energy used to operate a tankless unit. It is the best option for energy efficiency.
Both these tanks need to be maintained at least once a year by having the unit flushed by a professional plumber. As we know, hard water leaves some residues on the tank. The storage water heaters are easy to maintain, as they are not as sensitive to hard water. Cleaning them is just a matter of flushing the residues out. As for the tankless water heaters, they are extremely sensitive to hard water therefore they require thorough cleaning from a professional.
In addition, storage water heaters are cheaper than the tankless ones.
However, the storage-heating unit uses a lot of energy, as they operate continuously even when they are not needed. The tankless water heaters are energy savers because they heat up the water only on demand.