Join Date: Oct 2009
Location: Swarthmore, PA
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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.
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2001 Catalina 34MkII Breakin' Away (at Rock Hall Landing Marina)
PO of 1998 Catalina 250WK Take Five (new owners relocated to Baltimore's Inner Harbor)
1991 17' Trophy (Lake Wallenpaupack)
1985 14' Phantom (Lake Wallenpaupack)