The Difference Between Tank Storage and Tankless Water Heaters
Tank storage and tankless water heaters are two ways hot water can be generated for use in residential and commercial buildings. While both types of water heaters serve the same purpose, they operate differently and have unique features.
Tank Storage Water Heaters
Tank storage water heaters are the traditional type of water heaters that store hot water in a tank and keep it heated until it is needed. When hot water is desired, the hot water flows through the plumbing system to the point of use. These water heaters are available in various sizes, ranging from 20 to 100 gallons, and can use electricity, gas or oil to heat the water. Tank storage water heaters are relatively inexpensive, and installation is easy, making them the most common type of water heaters in homes.
Tankless Water Heaters
Tankless water heaters, also known as on-demand water heaters, do not store hot water but heat it as needed. When a hot water faucet is turned on, the tankless unit heats the water and delivers it through the pipes. This allows the system to provide an endless supply of hot water, if there is a consistent supply of cold water to the unit. Tankless water heaters are available in electric or gas models and are generally more energy-efficient than tank storage water heaters because they do not have to keep water heated continuously.
Differences
The primary difference between tank storage and tankless water heaters is the method of water storage and heating. Tank storage water heaters store hot water in a large tank, which can take up a significant amount of space in a home. In contrast, tankless water heaters are much smaller and can be mounted on a wall, freeing up valuable floor space. Another difference is the amount of hot water available at any given time. If the demand for hot water exceeds the supply in the tank, there will be no available hot water until more is heated. On the other hand, tankless water heaters can provide an endless supply of hot water. Finally, a tankless water heater typically has a higher upfront installation cost, but the cost savings realized over time by heating water only when needed may offset the initial outlay.
The choice between a storage tank or tankless water heater will depend on factors such as space availability, hot water usage, energy efficiency and your household budget. Whether you are interested in a tankless or a storage tank water heater, Armstrong Plumbing, Air & Electric has trained plumbers to assess your specific situation and provide the help you need.
