I'm curious. Those of you that boat in salt water and have air conditioning onboard. Are there any maintenance related issues with the units being in salt? Admiral is telling me she now wants a larger boat with Air and I have to agree down here. Yesterday, it was around 99 degrees and very high humidity. Not comfortable being on a boat here in those conditions without air. I'm thinking more about either anchoring out and running a genset for the air, or being at the dock and using the air. I'm wondering how much maintenance is required on an a/c unit in salt water?
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Larger boat w/ air conditioning, eh???
There is a more efficient Marine style heat sink condensor unit that can be used in the freon system.
No sea water pump, no potential leaks to deal with, no direct salt water contact with AC unit, one evaporator coil only at the AC unit.
The thru-hull heat sinks are much more efficient at dumping BTU's into liquid, rather than air.
With a larger boat, you're going to see hull penetrations regardless, so don't let an additional hull penetration scare you.
It will be no more of an issue than with any other penetration.... I/B engine sea water, head water, wash-down, Generator, etc.
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Rick E. (aka RicardoMarine) Gresham, Oregon
2850 Bounty Sedan Flybridge model 31' LOA
Twin 280 HP 5.7's w/ Closed Cooling systems
Volvo Penta Duo Prop Drives
Kohler 4 CZ Gen Set
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I would seek the advice of the live aboard forums as to which product offers the best reliability. The second issue is the ducting, so the cold air flows to all the right places.
On a hot day at one boat show, we entered numerous boat that were running their AC. Most cabins were hot with a single vent of cold air. We entered a newer Bayliner and found the entirety of the cabin was cool. They had built in ducts similar to a car, which distributed the cold air nicely.
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Wasn't concerned with the thru hulls, just wondering if I can expect to have to change a water coil/pump, or what not every few years due to corrosion. Just wanted to know how much more routine maintenance to expect. Thanks.
Craig, your point is a good one. You can only move as much air as you have capacity to move, and that includes the return air path also, no matter how big a cooling coil you have. The amount of ductwork is certainly something that I will be looking at.
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