Friday, October 30, 2009

Will a natural gas tankless water heater really save me money?

If you’re thinking about replacing your electric water heater, you might want to consider a natural gas tankless water heater. Why? These units are 30-40 percent more energy efficient than standard tank-type water heaters, saving money on your energy bill while providing you with a virtually endless supply of hot water.

There are a number of benefits to having a tankless natural gas water heater:

  • Natural gas is clean burning. And, natural gas rates are currently at a five-year low!
  • Tankless water heaters are energy efficient because they only heat water when you need it, rather than storing the water in a tank and keeping it heated around the clock.
  • They take up less space and can be located either indoors or out.
  • The life expectancy is almost double that of electric water heaters. Natural gas tankless models can last up to 20 years, and if there’s a product failure, you replace the broken part, not the whole system.

While your exact savings will depend on the number of people living in your household, ENERGY STAR® estimates that converting to an ENERGY STAR®-qualified natural gas tankless water heater can cut your annual water heating costs up to 30 percent. Natural gas tankless water heaters also qualify for energy-efficiency tax credits.

In addition, SCE&G customers with access to natural gas may qualify for a $300 credit on their gas bill* when converting from an electric water heater to a natural gas one.

For more details, give us a call at 1-866-523-8242 or visit

* Certain restrictions apply. These offers may expire.


  1. I recently heard on a radio "home maintenance show" that tankless water heaters need to be cleaned several times a year. Can you give details on that?

  2. Manufacturers of tankless water heaters, just like manufactures of tank water heaters, suggest routine maintenance in order to get the maximum performance and longest life from your water heater. Many tankless water heater manufacturers recommend that the in-line water screen filter be checked periodically for debris. They also recommend that the unit be flushed periodically, depending on the water quality in your area, to minimize lime and calcium build up. This is similar to the age-old recommendation of draining the tank of your tank water heater periodically in order to remove the sediment that collects in the bottom of the tank.

  3. I was reading your blog and have a question for you. I tried emailing you, but it was returned. We’re are the largest provider of energy conservation products and programs to utilities in the US and we’re based in Charleston. I saw that SCE&G will be doing an in-home energy audit program next year where they give out certain low cost measures like CFL’s, Pipe Wrap, etc. Do you know who will be overseeing this program? I would like to make sure that our company is kept in the loop on any RFP’s that might come out with respect to this or any other energy efficiency program. If you could point me in the direction of any program manager or energy efficiency director it would be greatly appreciated.

    John Bailes
    AM Conservation Group, Inc.
    800-777-5655 Ext. 22

  4. John, thank you for your post. I’m sorry you had trouble sending us an e-mail. In the energy efficiency program that we submitted to the S.C. Public Service Commission for approval, the proposed Tier 1 portion of our Residential Energy Check-up (Tier 1) and Home Performance Audit (Tier 2) Program would provide for the installation of some low-cost items such as compact fluorescent light bulbs and water heater wraps, as part of the Energy Check-up if the customer agrees to the installation. If a customer declines the installation of these measures at the time of the visit, a cost of $25 for the Check-up will be charged. It is our hope that implementation of our new programs will begin in late Spring 2010. If you would like further information about these proposed programs, please contact me at: Thanks!


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