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  1. #1
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    air conditioner

    At the boat show in Louisville about 5 years ago a dealer was selling small DC powered air conditioners. Can anybody remember to brand name?

  2. #2
    Senior Member BananaTom's Avatar
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  3. #3
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    Thanks for replying. I didn't know they were that pricey. I'll just run the old genny.

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    Senior Member Stmbtwle's Avatar
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    Even a DC air conditioner uses a lot of power and will kill your batteries in short order. IMO it's a gimmick. You can do the same job for less money with a 120v unit and an inverter (kill your batteries).
    She's a tired old barge but she's paid for!

  5. #5
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    The one that I saw at the boat show was for a very small cuddy cabin. They said it would run 8 hrs from one 12 volt deep cycle. It was portable and it needed a 3"heat exhaust tube.

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    Senior Member Stmbtwle's Avatar
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    It would have to be a pretty small cuddy. Doing the math I'd guess it might be good for about 1000 btu, probably less. It might get you through the night, and then you have to charge the battery. Interesting, though. Any info on the critter?
    Last edited by Stmbtwle; 06-16-2016 at 05:40 AM.
    She's a tired old barge but she's paid for!

  7. #7
    No dear, But I can suggest you some DC powered air conditioner's dealers if you want.

  8. #8
    Senior Member Stmbtwle's Avatar
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    Thanks anyway. Wouldn't be of any use to me, and the last thing I need is another sales pitch.

    For the folks in the deep lakes, I've thought one could drop a pipe down to cold water and pump it up to a fan coil to cool the air. Wouldn't work for me though, the water temperature is 85F...
    Last edited by Stmbtwle; 06-23-2016 at 08:28 AM.
    She's a tired old barge but she's paid for!

  9. #9
    Senior Member Stmbtwle's Avatar
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    I wonder if this is the one? http://www.cruisencomfortusa.com/?gc...FdgKgQodMNMOww

    at 40-50 amps it would take some serious batteries to run all night.
    She's a tired old barge but she's paid for!

  10. #10
    Senior Member Endurance's Avatar
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    Quote Originally Posted by Stmbtwle View Post
    I wonder if this is the one? http://www.cruisencomfortusa.com/?gc...FdgKgQodMNMOww

    at 40-50 amps it would take some serious batteries to run all night.
    I'll say. If you went in the middle at 45 Amps and ran it for a couple of hours to cool things down before going to sleep for eight hours, you would use 45 X 10 = 450 Amp hours (Ah) each night. The most you dare draw lead-acid batteries down is 50%, which means that you'd need a 900 Ah battery bank assuming full efficiency and a 100% charge each night. Even assuming that, you would need at least ten GC2 golf cart batteries to give a 900 Ah bank at 12 volts. A bank of 12 GC2 batteries would be more like it. That's a big battery bank. I can only imagine trying to get it charged each day.

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