How Do Tankless Water Heaters Work?

Posted on: 14 September 2016

Tankless water heaters are becoming more common in homes across the country, however, there are still many homeowners who do not know what tankless water heaters do or why they are desirable. Understanding how these water heaters work and what they can do for you can help you decide whether or not this type of water heater is right for your property.

How Do Tankless Water Heaters Work?

A tankless water heater functions by heating water as it passes through the heating elements inside the unit. Unlike traditional water heaters, there is no tank of pre-heated water.

What Are the Advantages of Tankless Water Heaters Over Traditional Water Heaters?

These water heaters have many advantages, including:

  • Reduced carbon footprint. Compared to traditional water heaters, tankless water heaters use up to 50% less energy to heat up water in the home.
  • Unending supply of hot water. Tankless water heaters make hot water on demand, which means that they never run out of hot water.
  • Reduced utility bills. Because they use less energy, these water heaters can help homeowners save money on utility bills.
  • Takes up less space. Water heaters with tanks are relatively large, while tankless units are wall-mountable and take up less room in the house.

Are There Any Disadvantages to Tankless Water Heaters?

While they do use less energy and can help homeowners save money on utility bills, these eco-friendly water heaters require a larger upfront investment over traditional water heaters. This can reduce the impact of money saved through smaller utility bills.

Do Tankless Water Heaters Require Maintenance?

Tankless units do require maintenance. Hard water can cause scale to buildup inside the heating elements of tankless water heaters. Once scale builds up inside the unit, the digital interface will flash an error message. When this happens, the scale must be flushed from the appliance. Homes with hard water will accumulate scale faster than homes that have softer water. In some homes, flushing the tank must happen on an annual basis for the tank to work properly. In other homes, tank flushing must occur once every few years.

What Can You Do to Cut Back on the Maintenance of Your Tankless Water Heater?

Working with a certified plumber will help you reduce necessary maintenance on your water heater. Your plumber can install a water softener and tune up your hot water heater on a regular basis. This will help ensure that your water heater is functional and in good shape throughout the year.


Everyone Deserves a Little Luxury in Their Home

When I was growing up, my parents worked very hard to make ends meet for my family and we lived in a small, basic home. After I landed my first job as an adult, I purchased my first home. When I got a promotion at work, my salary increased dramatically and I started dreaming of having my bathroom remodeled to give it a "luxury spa" feeling. I felt guilty having a luxury spa in my home when my parents still lived in the same small home they raised us in, so I had their bathroom turned into a "luxury spa" as well! It felt great being able to "pay it back" to them for all the hard work they did in raising our family. I am looking into other home remodeling projects now, and I want to share what I am learning with others who would need the information!

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