What are Tankless Water Heaters?

Believe it or not, cooler weather is on its way! As the seasons change, your hot water usage is only going to increase.  As hot baths, hot tea, hot showers, and hot cocoa begin to flow, the time it takes for hot water reach your tap will become more and more unbearable.

Looking for a solution before the situation is serious? Consider investing in a tankless water heater!

The plumbers at Bardi are experts in this new technology and are here to highlight the advantages and disadvantages of tankless water heaters.

How do tankless water heaters work?

Traditional water heaters have a tank that stores water that was warmed by either an electric or a gas source. When someone turns a tap to ‘hot,’ cold water enters the hot water heater, and pushes the heated water through the pipes, to the tap. Because cold water has to enter the heater, and push the hot water through the pipes, hot water doesn’t arrive instantaneously.

Tankless units are also called instantaneous or demand-type water heaters. Unlike traditional water heaters, tankless water heaters don’t store warmed water. When a tap is turned on, cold water travels through your pipes, and is heated instantaneously by an electric or gas heating unit. This water does not stop or collect in one place. Instead, it continues to your plumbing fixture, fully heated.


There are many advantages to investing in a tankless water heater. First and foremost, hot water will reach your plumbing fixtures instantaneously. For most homeowners, this is reason enough to invest in a new water heating system. But, tankless water heaters also offer advantages in energy efficiency.

No matter how much water your family uses, tankless water heaters will save you money on your utility bill.  For example, if your family uses 41 gallons or less of hot water each day, a tankless water heater is 30% more energy efficient than a traditional water heater.

Furthermore, tankless water heaters have a longer lifespan than their traditional counterparts. While traditional water heaters last 10-15 years, tankless water heaters last more than 20 years.

Finally, tankless water heaters are much easier to repair than traditional water heaters due to their easily replaceable parts.


There are a few disadvantages of tankless units you should weigh when making your decision.

First, tankless water heaters are more expensive than traditional water heaters. However, keep in mind that tankless water heaters help you save on energy costs.

Second, the flow rate of tankless water heaters is limited. Tankless water heaters provide hot water at a rate of 2-5 gallons per minute. This means that running multiple plumbing fixtures, a shower and a dishwasher for example, may be impossible with this design. However, most homeowners combat this issue by simply purchasing multiple water heaters.

Considering a Tankless Water Heater? Call Bardi for installation!

Are you ‘sold’ on the idea of a tankless water heater? Call the expert plumbers at Bardi to get it installed today! Our technicians are trusted by hundreds of Atlanta families to solve plumbing, mechanical, and HVAC problems. Call us today at 770-263-9300, or schedule your service online.



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