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  1. #1
    Join Date
    Jan 2012
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    Default New hot water heater

    Hi! I just purchased a 1944 Cape and I need to replace the existing electric hot water heater. I have done some research and determined that I would like to buy a 40 gallon tank with a good warranty. Any suggestions on an efficient, affordable unit? If it makes any difference, I have a boiler that uses oil right now, but I will eventually be replacing it with a gas boiler. The city gas line is available to me, although it is not currently in my home so a gas water heater is not an option at the moment. Thanks!

  2. #2
    Join Date
    Feb 2010
    Location
    South*East
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    1,183

    Default Re: New hot water heater

    You can get 6,10 and 12 year warranted water heaters. In most cases they are the same tank. The additional cost is like buying a extended warranty. What it gives you is a replacement tank if it fails within the warranty period it will not cover your installation cost.

    John

  3. #3
    Join Date
    Aug 2008
    Posts
    74

    Default Re: New hot water heater

    bonnie:

    For anyone like yourself that already has a boiler, either oil-fired or gas fired, it is strongly suggested that you consider having what's called an indirect hot water heater installed now with your present boiler, or when you buy a new gas-fired boiler.

    Indirect hot water heaters (IHWH) are known as heat exchanger companions of hot water heat boilers, and are considered by many as the best, and most efficient way of obtaining hot tap water, or domestic hot water (DHW); since you already have a boiler, you have ready hot water that can be pumped thru a tank within a tank (IHWH) to heat the DHW, usually a 40 gallon size capacity; there is no need to have a separate gas burner for the IHWH, and no need to have a flue connection to the chimney, etc.

    Upfront costs for the IHWH are higher than buying a gas water heater, but the IHWH will last for decades without problems, especially if you have reasonably soft water at your location.

    Typical installation costs with the unit are approx $2k; you'll never run out of hot water once you have this type of unit installed.

    The sites below explain the benefits and drawbacks of the various DHW heating tanks; indirect units by Triangle Tube, HTP Superstor, Weil-Mclain, Lochinvar and TFI Everhot, among others are recommended.


    http://www.ag.uiuc.edu/~disaster/replace/waterhtr.html
    http://www.aceee.org/consumerguide/waterheating.htm
    http://hotwaterheatersguide.blogspot.com/
    Last edited by brewster; 01-24-2012 at 03:41 PM.

  4. #4
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    5,438

    Default Re: New hot water heater

    There are a few electric water heater manufactirers, and they are all about the same, as far as quality, efficiency and cost.
    If you are lucky, you'll get a good unit from any of them.

    Electric water heaters cost less than natural gas units, but the are more expensive to run, depending on your electric company's rates.

    If you want to tap into the city's gas line, you'll invest some money upfront, but it will pay for itself very quickly. To do so, you'll need the help of a licensed plumber.

    As john mentioned, your warranty length will determine the unit cost. Personally, I would choose the 6 year warranty.

  5. #5
    Join Date
    Jan 2012
    Posts
    2

    Default Re: New hot water heater

    Thanks so much for your advice! I'm new at this and I need all the help I can get.

  6. #6
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    5,622

    Default Re: New hot water heater

    If you want a highly efficient electric hot water heater you might consider a Marathon water heater. http://www.marathonheaters.com/

    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

  7. #7
    Join Date
    Nov 2011
    Posts
    51

    Default Re: New hot water heater

    I would forget about an additional oil fired or electric water heater. Brewster is 100% correct. If a boiler is present, certainly install an indirect fired water heater. But there is one catch. That doesn't work with steam systems. If you have a steam system, then the indirect fired water heater can't be put in the loop. They have yet to invent an indirect tank that uses steam. But if your systems Hydronic, then your all set.

  8. #8
    Join Date
    Feb 2010
    Location
    South*East
    Posts
    1,183

    Default Re: New hot water heater

    Quote Originally Posted by bconvers9622 View Post
    I would forget about an additional oil fired or electric water heater. Brewster is 100% correct. If a boiler is present, certainly install an indirect fired water heater. But there is one catch. That doesn't work with steam systems. If you have a steam system, then the indirect fired water heater can't be put in the loop. They have yet to invent an indirect tank that uses steam. But if your systems Hydronic, then your all set.
    You can use a indirect on steam. You just use the trappings on the boiler that are inside the water level of the boiler.

    John

  9. #9
    Join Date
    Nov 2011
    Posts
    51

    Default Re: New hot water heater

    Interesting! I didn't know that. Well then I would go with indirect!

  10. #10
    Join Date
    Feb 2012
    Posts
    92

    Default Re: New hot water heater

    the indirect or direct our a little more expensive but our nice as far as John stated the 6, 10 , 12 year warranty is the same tank but there is a difference the 6 year has one anode rod and the 10+ has 2 the average life span of an anode rod is between 4-6 years of age completely depleted is 6 you hear of the water heater's that die 6 years and 3 months later well that's why the anode rod depleted. According to the manufactures of water heater's a tank only has 30 days of life without an anode rod so if your anode rod is depleted it has 30 days or less till it leaks I have yet to change out a water heater that leaked from tank with a good anode rod so that being said save the extra cost of unit and change the anode rod every 4-5 years at least have it inspected.

    Ben Franklin Plumbing Of Alpine
    304 Meadowlark Dr, Alpine, UT 84004
    (801) 960-1567 ‎ http://www.benfranklinplumbingalpine.com

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