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Old 07-10-2009
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svHyLyte svHyLyte is offline
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McGray--

We have a 1996 era KingAir 16,000 BTU A/C unit aboard our 1986 Beneteau First 42. The unit is mounted amidships, in the main salon, under a seatee return. We do not have ducting. The exhaust fan blows cool air through a wedge shaped vent near deck level and fans blow the cooled air into the fore- and port quarter cabins. For our boat, in the Tampa Bay area, 16,000 Btu's makes the boat as "cold as a meat locker", even in the Summer, according to my [much] better half. Our raw water intake is a dedicated through-hull below the sink in the galley that feeds a 500 +/- gph air-cooled March pump through a Groco raw water strainer with the discharge in the transome about a foot above the waterline. We also have a Mermaid "Condensator" to extract and discharge condensate into the raw-water discharge line but it works only intermittently and I would not make an investment in one again.

On your yacht I suspect that a 9,000-10,000 BTU unit would be quite adaquate. We dispensed with the duct-work as we have more important things to store in the backs of our lockers and I suspect you may as well.

Good luck!

s/v HyLyte

PS: Our unit is a reverse cycle system and in winter here in Florida, it WILL drive you out of the yacht, even in 30 deg. weather. While I dislike the people at KingAir somewhat, the equipment is first rate if you're trying to decide on the equipment.
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Last edited by svHyLyte; 07-10-2009 at 08:36 PM. Reason: Add PS! & Correct typo!
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