How Does an Endless Water Heater Work?

Tankless water heaters seem almost magical sometimes, providing you with immediate and endless hot water and allowing you to use it even when water using appliances like the dishwasher or clothes washer are being run. However, the technology behind them isn’t as complex as you might think. They work by heating water as soon as it is demanded, without the need for a water storage tank. You’ll also find that they look much smaller compared to the traditional storage tank water heaters that you can still find in many homes and buildings.

how does an endless water heater work

Water is heated upon request

Tankless water heaters heat water as soon as a tap is turned on. Cold water travels into the unit via a pipe, and it is then heated with a powerful gas or electric heat exchanger. The exchanger is able to continuously heat the water as long as it is being used, and output capacities vary from around 2 to 5 gallons per minute or more, depending on the model.

Propane or natural gas water heaters are able to provide more hot water per minute than electric models. Although tankless water heaters generally have excellent capacities, if a home has very heavy hot water usage it can easily still stretch them past their limit. In this case, two separate tankless water heaters can be installed in parallel, and the heating capacity doubles.

Two types are available

You can choose between whole house water heaters which are the more expensive but convenient option, or point-of-use water heaters which are designed for just one particular area of your home, such as your bathroom, laundry room or kitchen.

Point of use water heaters are smaller and are typically installed close to the fixture in order to reduce the amount of time it takes for hot water to reach it. Whole house water heaters will operate for multiple fixtures throughout a home. Most whole house water heaters are powered by propane or natural gas, since gas is more reliable.

They offer improved energy efficiency

Tankless water heaters offer significantly higher energy efficiency compared to storage tank water heaters for a number of reasons. Traditional storage tank water heaters must continually heat the water in the tank in order to keep it hot, and this results in wasted energy. However, because of the fact that tankless water heaters only heat water when it is needed, they operate with lower annual energy costs. They are also usually equipped with additional features that improve energy savings.

Better durability and easy maintenance

While traditional water heaters often only last 10-12 years, tankless water heaters offer far better durability with the potential to last up to 20 years when properly maintained. Also, the latest tankless water heater models are very easy to maintain and rarely have problems. When a repair is needed, most of them have easily replaceable parts so that there is minimum downtime, and many models come with excellent multi-year warranties.

Get more information about the benefits of a tankless water heater today

Although you can expect to spend a little more money upfront, the energy savings of a whole house tankless water heater along with the convenience of endless hot water can make it well worth the investment, especially for homes with frequent hot water shortages.

Diversified is partnered with the top tankless water heater manufacturers in the world including Navien, Riannai, and Bradford White, and our experienced technicians can answer any questions you may have about their residential or commercial products and assist you with finding the right solution. Call us today or visit your local Diversified Energy service center for more information.