Pros and Cons of Tankless Water Heaters

Here are the Answers to the Most Asked Questions

If it’s time for you to replace your home’s hot water heater you should take the time to learn about your options.  Tankless water heaters are becoming increasingly popular.  Also known as on demand water heaters, there are versions that use a gas burner to heat water while others use an electric element.  Models vary, but a typical tankless hot water heater can deliver 2 to 5 gallons of hot water per minute, with gas burner hot water heaters producing a higher rate of water flow than the electric versions.  Listed below are some of the PROS and CONS to help you make the right decision for you and your family.


  • Let’s start with the obvious advantage. Tankless water heaters provide hot water to you immediately as opposed to waiting 2 or 3 minutes.  In addition they allow you to use multiple appliances simultaneously without fear of running out of hot water.
  • This one may surprise you. A tankless water heater has a significantly longer life than conventional hot water heaters.  While a traditional hot water heater properly cared for could last as much as 12 years, tankless water heaters can operate for as many as 20 years or more.
  • Because of its compact size, tankless water heaters can be hung on a wall and be completely out of the way. Traditional hot water heaters are large, and consideration should be given as to where to place as leaks can be potentially devastating.
  • If you’re concerned about energy consumption, a tankless system is the way to go. While a traditional hot water heater is on virtually all the time, a tankless system is off until you need hot water.  It’s possible to save up to 40% on energy costs which could amount to over $100 annually.


  • The biggest issue for most homeowners is the cost. Tankless systems are going to cost you more than a traditional hot water heater.  With that said they do have a longer life span so you will need to weigh the cost against the future cost of replacing a traditional hot water heater.
  • Installing a tankless system is more expensive as they require piping, and ventilation not required with a traditional hot water heater.
  • It’s extremely important to consult with a professional prior to choosing a tankless system. There are capacity differences between units and based on your family’s consumption, choosing the wrong system could mean you find yourself coming up short on your hot water demands.

If you’re interested in replacing your homes hot water heater with a tankless system, call The Clean Plumbers.  We’ll discuss the pros and cons of tankless hot water heaters, analyze your consumption needs and help you make the right choice for your complete satisfaction.