Originally Posted by Tartimisi
What is the standard opening in the roof for AC unit? The Air Conditioner I am looking to buy fits standard 14"x14" opening. Thanks for your help.
You will probably find that the new AC will "ALMOST" fit. Airstream used a unique fitment process that fit the drain pans they were using at the time.
You will most likely find that the corners of your 31'er AC are rounded. I would suspect that you will need to square off the corners, plus a fraction of an inch on the hole size. I found it best to make a cardboard pattern and insure the proper fit prior to getting the unit on the top of the trailer.
Are you going to get an experienced Airstream technician to do the install? The AS install is a bit different than most RV's. Be sure to have the proper drip pan for the AC on site and make sure the pattern is made with the drip pan in place. I have completed 3 AC installs/replacements. One on the '87 345 motor home, and two on the trailer '78 31' Sovereign .
I highly recommend you get a heat pump instead of a straight AC. I do not see any reason just to purchase an AC only unit - we use the heat pump mode just as much as we do the cooling mode.
If you approach the area around East Texas, stop by and see us at the Texas Airstream Harbor, Inc.
. Most fun you can have for 15 bucks a night. Good luck, please report back here after the installation is completed, with pictures if possible.