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  1. #1
    Join Date
    Sep 2008
    Location
    NE PA, Pike county
    Posts
    23

    Best External Insulation for Hot Water Electric Heater

    Guys,

    What would be the best approach in external insulation of hot water electrical heater? Any guidance is highly appreciated.

    Thank you,
    Hemlock
    Last edited by hemlock; 09-24-2008 at 03:59 PM. Reason: need to clarify question

  2. #2
    Join Date
    Jul 2008
    Location
    Orange Park Florida
    Posts
    224
    Is this a hot water heater,or a boiler? (boilers generate steam)
    Local 234
    Have Gauge$ Will Travel

  3. #3
    Join Date
    Dec 2004
    Location
    toledo, ohio
    Posts
    179
    Quote Originally Posted by Chuck65 View Post
    Is this a hot water heater,or a boiler? (boilers generate steam)
    Steam boilers are the only boilers that "should" produce steam.

  4. #4
    Join Date
    Sep 2008
    Location
    NE PA, Pike county
    Posts
    23
    Sorry for my spotty terminology. I meant hot water heater. Thank you

  5. #5
    Join Date
    Jul 2008
    Location
    Orange Park Florida
    Posts
    224
    Here is what an A.O. Smith rep told me when I was replacing my water heater in my home.
    "If you buy a less expensive water heater,that has glass insulation in it,a water heater blanket would help a little in saving the heat in the tank."(I do not know what a "little" is.) "If you buy one that has foam insulation in it , the heat loss would not be enough to really measure or care about."" Both types need to have heat traps in the piping when installed to keep as much heat as possible in the tank."
    Local 234
    Have Gauge$ Will Travel

  6. #6
    Join Date
    Sep 2008
    Location
    NE PA, Pike county
    Posts
    23
    Thx for getting back. Wanted to clarify: what type of the water heater blanket are you referring to? Pls advise, thank you

  7. #7
    Join Date
    Jul 2008
    Location
    Orange Park Florida
    Posts
    224
    http://apps1.eere.energy.gov/consume.../mytopic=13070


    I know the url is long..I just copied and pasted it .hope that it helps. I found it by typing in "water heater blanket" into the search engine.
    Local 234
    Have Gauge$ Will Travel

  8. #8
    Join Date
    Sep 2008
    Location
    arlington, tx
    Posts
    225
    Quote Originally Posted by hemlock View Post
    Sorry for my spotty terminology. I meant hot water heater. Thank you
    why would you need to heat hot water? sorry couldnt resist

  9. #9
    Join Date
    Jul 2008
    Location
    Dutchess County, NY
    Posts
    152
    Quote Originally Posted by hemlock View Post
    Thx for getting back. Wanted to clarify: what type of the water heater blanket are you referring to? Pls advise, thank you
    You can get insulation to cover your water heater at most home improvment stores. This is something you will have to fabricate because they do not sell and actual "blanket" that will just fit over your heater. You can use the 1 inch thick fiberglass insulation batting material or you can also use the radiant barrier foil looking stuff. either one will work fine. ... how much you will save depends on many variables. Anyway, it is also a good idea to place a heat trap in the supply line...whats a heat trap? just a loop in the supply line...thats all.

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