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Go Back   SailNet Community > General Interest > General Discussion (sailing related) > Air Conditioning
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Thread: Air Conditioning Reply to Thread
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Topic Review (Newest First)
06-03-2011 10:39 AM
JoeDiver
Quote:
Originally Posted by beanctr56 View Post
Thanks all I bought a 6500 btu window unit to put over my front hatch
I've seen this done as well, and what I'm considering. Lowes has the smallest window units for just over $100....you can set it on the front hatch and use a towel to cover the gaps...just let it blow down the hatch. Nice and cool in the v berth, and use a fan to help it circulate to the cabin and aft. A guy posted this in another forum and said it works well. Basically, same concept as a Cruiseair, but without the plastic housing and relocated controls....but considering the price difference it's a very viable alternative.

I've also considered mounting this small unit at the base of the companionway. Probably a better install for cooling efficiency, but it makes entry/exit just a little bit of a pain.
06-03-2011 09:28 AM
piratesbooty I was just about to ask a similar question. I have a 31' Prout with a 5K BTU unit in a cut-in to the cockpit. I had the unit on during a very hot week here in MD (this last week). I bought a thermometer that shows highs and lows for indoor use and it was up to 93 degrees, with the AC on! This is not good for my cat.

So now I am looking for alternate solutions. I'd like a 10K BTU but they are substantially bigger, which means cutting a bigger hole in the cockpit and finding a new housing (currently has a nice little shelf/covering area that would be a real shame to lose).

I have been thinking of this:

Amazon.com: Whynter Eco-Friendly 13,000 BTU Portable Air Conditioner, Frost White (ARC-13W): Home & Garden

And just setting it up to somehow drain into my manual bilge area, then pump it every night. But the bilge area is in the head and the place that I could vent (small window in the berth) are about 10 feet away from each other.

Thoughts?
06-03-2011 08:29 AM
beanctr56 Thanks all I bought a 6500 btu window unit to put over my front hatch (at least the vee berth will be cool!). My Beneteau has a narrow companionway so I don't think it will fit there. $150 vs $300 for the portable. Rick
06-03-2011 07:43 AM
SVCarolena We have been using one on Carolena when in the slip for the past three years. Ours also atomizes the condensate and vents it through the exhaust hose, so no water to drip in the bilge. The comment about these units drawing in warm air is absolutely correct. When the unit is running, it recirculates some air over the coils, but it also draws air out of the cabin through the exhuast hose. As a result, it draws in a lot of warm air while also cooling the cabin, which impact efficiency. A dedicated hatch unit like a Cruise Aire, or even a window unit in the companionway would be more efficient. Of course, a water cooled marine unit is the most efficient (we are in the process of installing one of these). The bottom line on the unit you are looking at is that it will likely cool the cabin slightly during the heat of the day, and will make it very comfortable at night, but don't expect miracles. At least that has been our experience. If we had to do it again, I'd go the same route for the ease of use and relatively low price compared to the marine unit we are installing now. It has done well to allow us comfortable nights at the marina during the summer, but it would be nice to have more cooling during the day.
06-03-2011 02:01 AM
MARC2012 I looked at them last year and found price and size made them unsuitable.Bought a window unit for aprox. $100 LOWES worked fine last yr.It is in the way but worked fine.Around 5000 btu .
06-02-2011 11:40 AM
JoeDiver There's a guy in my marina with a C25 like mine...he has one of those free standing units in his cabin. It takes up a fair amount of room but he has it back by the quarter berth, so it's not too intrusive. It's intake draws air from inside the boat, sort of a recirculation mode. He had to run a hose to the cabin wall in front of the cockpit, put a louvered vent cover over it outside, so the louvers open when the unit is running. Water exits to the bilge.

Works very well...it'll ice down that cabin in even our 100+ humid Texas heat. The only issue he had was the exhaust hose. He said it had to be as short as possible and as direct as possible for the unit to work right.
06-02-2011 11:20 AM
deniseO30 I've seen large central air condensers that were rolled even flipped upside down to get them in location. hooked up and started.. never a prob LOL "time is money"
06-02-2011 10:31 AM
beanctr56 RD, the unit has only one hose, I can see your point.Thanks Denise, I think they said the freon needs to settle to the bottom to work well.

Maybe a window unit on the from hatch would be better.

Rick
06-02-2011 10:22 AM
TakeFive Many of these units have a single exhaust hose to spill out the hot air, but no intake hose. Not such a big deal in a large room with open doors in a house, but in a confined space like a boat it can be a problem. If your boat is well sealed you may get poor air intake/exhaust and inefficient cooling. If your boat is more leaky, you'll pull hot air in through all the leaks. Either of these scenarios leads to poor performance. A more proper design would have an air intake that goes through the cooling coils into the boat.

Check to see which design this air conditioner has.
06-02-2011 10:19 AM
deniseO30 Unless your sailing at 45 degrees 24/7 it won't hurt the compressor in the unit. There is oil in the bottom of most a/c compressors that mixes with the refrigerant when it's running. when upside down or horizontal that oil can "slug" and damage the reed valves in the comp on start up. I've never actually seen this happen after over 40yrs in the ac biz.
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