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post #1 of 11 Old 07-21-2012 Thread Starter
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Portable Air Conditioning Unit

Has anyone tried one of the portable AC units, that use a vent hose out a window. They cost about $300 to $600 at HD Lowes etc. The smallest claims to cool a 200 square room. All the reviews I've read are for home use, but I don't see why they couldn't work on a boat at the dock with 120 power. Any thoughts?
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post #2 of 11 Old 07-21-2012
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Re: Portable Air Conditioning Unit

My slip neighbor had one. He hated it. Finally modified his washboards to accept a window unit. Claims it works a lot better.
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post #3 of 11 Old 07-21-2012
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Re: Portable Air Conditioning Unit

neighbor has had three to get one that worked....and even then it struggles to cool a small den...

very inefficient, and the cheapest of materials would be enough for me to NOT buy one...her hassles took 3 months to sort out and she still has a little cooler room, certainly not as nice as the small window unit my mom has.

the portable ones are not designed to be tied down, ie they have wheels, and still need a 6-8" hole to the outside somewhere...plus the condensate collects in a pan that is shallow and needs to be emptied every few hours.

YMMV
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post #4 of 11 Old 07-21-2012
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Re: Portable Air Conditioning Unit

Maybe the quality varies by the brand. Our vet has one and it really puts out (not in a boat)

Try doing a search - there are other threads about them.
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post #5 of 11 Old 07-21-2012
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Re: Portable Air Conditioning Unit

I have one that works great. Vents hot air, and water through a 6" deck hatch.

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Re: Portable Air Conditioning Unit

Is it OK to ask the brand-model-etc.??
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Re: Portable Air Conditioning Unit

I would tell you, but I have no idea... I just bought the cheapest that self vented the water. And then I cut a screw in deck hatch cover to fit the hose through it. The one thing to notice is they typically are smaller than a comperable window unit. For me it isn't a problem because my boat has a small interior, on a larger boat it might be a bigger issue.

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post #8 of 11 Old 07-22-2012
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Re: Portable Air Conditioning Unit

I went from a 6000btu window unit in the companionway to a portable unit. It got old climbing over the window unit and moving it to go sailing. It cooled about the same as our current 8000btu portable unit.
I have a Commercial Air (that's the brand name) portable unit that sits in the quarter berth. It is on wheels which is not a problem because the quarter berth cushion has been removed. When away from the dock I strap it to a rail in the berth. At the dock, I turn it around, hook up the vent hose and turn it on.
I made an extra bottom drop board with a hole cut out for the air vent.
The condensation runs through a tube into the bilge.
This unit will keep the saloon (34' sloop) comfortable in the mid-day heat of a Texas summer with a boom tent ($12 tarp) also being used. It will get nice and cool at night...enough to cycle on and off when set at 72deg. It is not capable of cooling the v berth so we keep the door closed to the head and v berth.
The exhaust hose gets very warm so I wrapped it heavily with insulation tape and that helped a lot. We want central air in the future but for now, this is working.
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post #9 of 11 Old 07-22-2012
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Re: Portable Air Conditioning Unit

Side question: Could you use a jug and collect the water from the drain and use it for anything?
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post #10 of 11 Old 07-22-2012
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Re: Portable Air Conditioning Unit

I tryed one, did not work well because only the hot exhaust air is vented and unit constantly pulls warm intake air into boat
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