tankless water heater?

Discussion in 'Energy' started by strollingbones, Sep 27, 2011.

  1. strollingbones
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    strollingbones Diamond Member

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    any one have any experience with them
     
  2. Baruch Menachem
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    Baruch Menachem '

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    They are common in europe. They are a lot cheaper to operate, but they don't really heat the water that well. At least, the one I have experience of didn't, but it was really small.

    The drawback is the water flows through it too fast to really absorb heat well, and you can't leave the heating element on beyond the time you use it, as that would be dangerous.

    The one I saw had a single tube that bent four times and then there was a row of gas jets under the four bottom bends.

    It could heat enough water to make it work for a sink, but not for a shower or a bath.

    I saw it in Russia back in 1989 and 1993
     
  3. bripat9643
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    bripat9643 Diamond Member

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    Simple solution: make it bigger.
     
  4. del
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    del BANNED

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    i had one installed when i upgraded the heating system at my church and it works really well. i was afraid it would be slow to warm and then not warm enough, but it rocks.
    we also got a rebate (actual money, not a tax credit) for purchasing it, but i think that was a state program, not fed.
     
  5. Baruch Menachem
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    Baruch Menachem '

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    In places where they are common, that really isn't much of an option. They are for small apartments usually.
    Here is a picture of one from a Japanese Anime. It is the white box over the sink.
    [​IMG]

    And it looks like this one, like the kind of thing common in Britain has a coin operated feature.

    Do remember, you are only heating the water you will use as you use it. That makes it real cheap. The usual American style water here you heat large amounts of water for a long time and never use the heat. One of the reasons it is so popular in East Europe and Asia. American Energy use is very profligate as it is so cheap. If we had to pay usual world prices, we might be using these things too.
     
  6. The Gadfly
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    The Gadfly Senior Member

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    They come in different sizes. I use two for a four-bath two-story house, and they work extremely well. Definitely cheaper on natural gas than the tank variety, and without the worry of a leaking tank damaging your home. You also never run out of hot water while taking a shower, even if three other people showered right before you. The projected service life on the things is also longer than a conventional gas water heater. The only draw back is a short wait couple of minute, max) for the water to get hot enough at the faucet, and a somewhat higher initial cost to install. You'll typically recoup the extra cost in gas savings over three to five years, at current rates.
     
  7. whitehall
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    whitehall Gold Member

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    Cold showers, dim rooms lit by murcury bulbs, cold winters with high fuel costs. Welcome to the brave new world of greenies/socialists.
     
  8. Big Fitz
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    Big Fitz User Quit *****

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  9. asterism
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    asterism Congress != Progress

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    I've got a small electric one for one of my bathrooms and it works well. The water is so hot I had to adjust the temperature down so the kids wouldn't get scalded.
     
  10. strollingbones
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    strollingbones Diamond Member

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    i have an 80 gal tank....but now there are only two of us....i am thinking i need to down size....the electric bill and all.......here is my main concern....my current water heater is over 28 years old...we have done zero to it...zero......no elements replaced nothing...i am thinking a 50 gal might do us now....
     

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