[tuga]

I had a 1993 Newell 44' with 3 basement ACs. I found that I was able to get the inside temperature about 20 degrees lower than the ambient temperature while parked in a campground. Example: if it was 100 degrees outside, I could get it down to 80 degrees inside. Not exactly comfortable.

On the highway the dash AC never did work after 3 repair jobs; it would not hold freon. It took 3 fans running inside to keep the coach cool while driving in 100 degree heat. Without the 3 portable fans, it was not comfortable inside.

Presently I have a 1999 Newell with 2 SCS double compressor AC basement units. The dash AC in the 1999 works fantastic; a 10,000% improvement over the 1993 model. With the dash AC + the 2 basement ACs it is about 75 degrees inside the coach with an ambient temperature of 100 degrees. When in a campgrouond the 2 basement ACs have a difficult time cooling the coach. With ambient temps of 95 degrees, 75 is about the best that you can hope for. Keep in mind that the window awnings have to be extended to help the AC units.

The return AC duct is located in the stairwell in my 1999 Newell. IMO that is a poor choice for it. Each time the entrance door is opened hot air comes in from outside and the AC units have to work harder. The return air ducts should be located somewhere else inside the coach.

I love my Newell, but the AC in the dead of summer leaves a lot to be desired. Please keep in mind I am discussing a 1999 Newell and you asked for info on a 1980s vintage. I owned a 1987 Newell 40' with 3 roof ACs and the story was the same; marginally comfortable in very hot weather.

If you ask any AC repairman he will tell you that a 20 degree difference between inside and outside temps is about the best that you can hope for with any AC system. I just want you to understand that you will not be freezing inside with outside temps in the 100s.

Parking under a tree or shelter will do more to help cool the coach in those kinds of temperatures. Hope that I have helped you.