And the compressor,which can be very noisy, is inside the cabin/room. A split makes more sense(see Simi`s post above). Exhausting a window rattler into the ER, while initially appealing, is the option least likely to succeed.You probably would be better served by one of those stand alone units that exhaust outside via a dryer type hose. The fly in that ointment is the hose can't be very long.
Those room A/C's need to be installed so that the outside part gets fresh outside air all of the time to cool it's condensing coil. If you mount it so the outside is in an enclosed engine room, that room will get very hot and the A/C will probably shut down or at best stop cooling when the condenser gets too hot.
David
You probably would be better served by one of those stand alone units that exhaust outside via a dryer type hose. The fly in that ointment is the hose can't be very long.
Don't do it !!
There was once an extensive post (not sure if it was here or some other boating blog) about an owner who installed a window air unit under his flybridge area. He really did a professional job of hiding it and ducting it. It was still a "hack" job.
Nothing "irks" me more than seeing a window air unit hanging out of the side of a boat.
Although the installation you propose would not show from the outside, it wouldn't work. There simply isn't enough air circulation in an engine room.
Bite the bullet and buy and install a heat exchanger.
pete
See plenty of cruising boats in these parts running split system ac
https://www.airconditioning-online....w-reverse-cycle-split-system-air-conditioner/
That seems to be the newest and bestest way to do it. No water pumps and hoses to fail and sink your boat.
My biggest concern with a split system A/C would be, how long it (outdoor unit) would last being exposed to the salty elements? I guess if you're just cruising inland water ways it may be ok, but if you're on the ocean then I'd think twice.