Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
Below are some pictures of a mod I made on a 6500 Btu air conditioner I use on my boat. I've used this unit in the past in it's standard configuration both in the companionway and through the front hatch. Both worked OK but it was a pain to climb over when in the companionway and didn't cool as well as I would like when used in the front hatch.
To me using the front hatch is the way to go. It makes it easy to get in and out of the cabin and keeps the condensation out of the cockpit. The only problem is getting the cool air to the back of the cabin.
In an effort to get the cool air farther back in the cabin I added a rectangular to 6" round adapter to each outlet and then attached a 6" flexible metal duct that can be stretched out to 4' if needed. This should allow the air to be directed where it's most needed. Obviously I need to purchase another 6" duct to complete the project.
I haven't decided if I will slide the unit up close to the hatch and drape something over the top of the hatch to seal out the warm air and bugs or slide it back a bit and just run the ducts through the hatch.
Having the unit up in the hatch will allow the return air to be recirculated which will help it cool down quicker and allow the thermostat to work properly. Sliding the unit away from the hatch will mean the unit will not recirculate the cooler air and the compressor will run continuously. One will work better but will not be as clean an installation as just running the ducts through the hatch.
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.