Thinking Green

Tankless Water Heaters

By: Danny Lipford

Heating water accounts for 25% of the energy used in homes. While a tankless water heater costs three times as much to install as a conventional tank type, it can pay for itself over time in the energy saved.

That’s because conventional water heaters use energy around the clock to keep the water in the tank constantly hot. Tankless models, on the other hand, only heat water as you need it. This can result in a 20% to 30% saving in the energy used to heat water.

Video Transcript

Danny Lipford: For every energy dollar you spend on your home, a full 25% goes to heating water. So it only makes sense to find some way to reduce that cost, right? Well, a tankless water heater that gives you hot water on demand is the best solution. It costs almost three times more than a conventional heater. But the tankless heater is still worth the cost because of the money you’ll save by not having to constantly heat water.

To better illustrate it, a conventional water heater is like trying to heat this glass of water with all these candles; and to keep the water hot, the candles have to keep burning. On the other hand, a tankless heater is like this propane torch which heats the water in this thimble almost instantly, and turns off when it’s done.


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4 Comments on “Tankless Water Heaters”

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  • Ellwood Burger Says:
    April 1st, 2017 at 1:43 pm

    Where do you install a electric tankless hot water heater to a mobile home and will there be any issues in the winter of freezing tempatyres?

  • Plymouth Plumbing MN Says:
    January 7th, 2009 at 7:54 am

    Consumer reports has a great article on this.
    I have found a great thread about this on the ridgid
    forum website.Bottom line..

  • Mike Petrunic Says:
    December 21st, 2008 at 6:52 am

    Which is more cost efficient, a gas or electric tankless water heater?……say for the Alabama area where both gas and electricity pricing is relatively close on a btu basis. Also, which is the lowest cost to install? Thanks.

  • Plumber Training Courses Says:
    August 25th, 2008 at 8:19 pm

    Very informative article about tankless water heaters

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Tankless Water Heaters