Thursday, February 14, 2013

Tank vs. Tankless Water Heaters: The Good and The Bad

Here is a quick and simple comparison between tank and tankless water heaters from Incredible Renovations

The Good
  • Tankless water heaters are about 10 to 20% more energy efficient than traditional tank water heaters.
  • Tankless water heaters can take up less space than tank water heaters.
  • Tankless water heaters typically outlast tank water heaters.
  • Tankless water heaters don`t use energy until hot water is being used.
The Bad
  • Tankless water heaters cost roughly two to three times more than tank water heaters.
  • Due to the initial high cost of buying a tankless water heater, it could take about 20 years in order to start saving money when switching from a tank water heater. By then, the heater will need replacing.
  • Tankless water heaters work best when only one water tap is using hot water.
  • If water taps are far apart from each other, it is recommended to buy another tankless water heater.
  • Water does not instantly heat up when using a tankless water heater, but does with a tank heater.
  • With tankless water heaters, water may not heat up if water is only trickling out of the tap.
  • Tankless water heaters require yearly maintenance in order to remain efficient.

For more information:

By John Pustelnik



  1. I wish that the water heaters in Calgary were more simple to work on. The companies here make some weird models.

  2. Thanks for sharing. I'd love to learn more about these tankless water heater in Calgary. I have heard really good things about them.

  3. Great information. I think I may change to a tankless water heater.

  4. This is the perfect blog for anyone who wants to know about this topic. Thank you for sharing...........

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  5. I could use a tankless water heater Calgary. I think it would be for the best. Where would I be able to get one?

  6. These are great tips to know, I think I actually might buy a tankless water heater in Calgary now thanks so much for this information!

  7. Thanks for the info. I don't like taking cold showers. That's why I'm looking for hot water tanks in Edmonton any suggestions?

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  12. I need a new water tank heater. My wife is making me replace ours and I have no idea how to fix it. Your advice is going to be really helpful.

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  14. Those are some good points about the different kinds of water heaters you brought up on your list. I will show this to my husband and see what he thinks. I'm just glad I can turn the knob to hot and hot water comes out.
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  15. I am building my dream home at the moment. There are so many details that I had no idea I would have to make decisions on. The one I have recently come across is a tankless water heater or one with a tank. I have been researching all of the pros and cons and I think I am going to go with the tankless.

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  19. This is great information. I am glad I found the advantages and disadvantages of using a tank vs. Tankless Water Heaters. My sister and I will be purchasing one. She is more of a energy efficient person, so she might lean towards getting a tank less water heater. On the other hand, there are more costly, and we might not be able to afford it. I wonder what she'll go for.

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  21. Do you know how much it cost to get a water heater installed? Our last one is too broken and old to be repaired. It will be so nice to have a water heater that actually gets hot water to the shower in a small amount of time.