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Old 05-27-2015, 09:02 PM   #1
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A/C

Having a problem with excessive condensation coming from my a/c. Not the unit itself but the first few feet of duct. Enough water to make a good sized puddle on the floor. Would replacing the duct with a insulated duct help or just make a wet duct pipe. Can't figure why so much water.
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Old 05-27-2015, 09:04 PM   #2
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Check if the drain line is plugged. We had the same issue a couple of weeks ago. A blast of compressed air cleared it iut.
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Old 05-27-2015, 09:07 PM   #3
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Replace the sweating duct work with insulated ducting.
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Old 05-27-2015, 11:29 PM   #4
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Replace the sweating duct work with insulated ducting.
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Old 05-28-2015, 06:27 AM   #5
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Sounds like the boat is never getting dry air inside.

This is usually caused by an oversized AC unit that cools too rapidly , and does not stay on long enough to dehumidify.
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Old 05-28-2015, 07:23 AM   #6
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Or it's just your typical boat that is anything but air tight and the A/C is trying to dehumidify the entire outside world.
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Old 05-28-2015, 08:48 AM   #7
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Or it's just your typical boat that is anything but air tight and the A/C is trying to dehumidify the entire outside world.
To

We had that same issue last year on our new to us boat. Went through and did our best to cut off any outside air gaining access to the AC returns. Made a huge difference. Went another step further and added a de-humidifier and now the boat stays in the 40% humidity range even in the muggy Deep South heat.
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Old 05-28-2015, 11:12 AM   #8
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Replace the sweating duct work with insulated ducting.
Definitely my first step also.
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Old 05-28-2015, 11:17 AM   #9
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Non-insulated duct will sweat in all but the driest conditions, the better the A/C works (colder the air) the more condensation on the cold duct.

Insulation is the key, if not insulated then replace with some that is insulated. If it is insulated duct then dry it out and add another layer.

Plastic and wood supply boxes are better then metal as cold metal will condense the humidity in the air and ruin contacted surfaces.

Easy fix, get er done.
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Old 05-28-2015, 02:45 PM   #10
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Before using your dehumidifier check this website:
Gree Reannounces Dehumidifier Recall Due to Serious Fire and Burn Hazards; More Fires and Property Damage Reported | CPSC.gov

Would hate to hear a horror story.
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Old 05-30-2015, 03:28 PM   #11
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Insulated the duct and cleaned out the drain hose. Problem solved,thanks.
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