AC temp in 5er compared to outside

joeburnes wrote:
I've heard that at best you should get an inside trailer temp of about 20 degrees less than outside. I live in Texas. It's 94 outside right now and about 78 in my 5er.
I have a 32 foot Montana with one 15,000 BTU A/C. BUT, I have the arctic package (upgraded insulation). It is a 2004 so the insulation package isn't as good as the newer models.

What do you guys think about what my results are (good/bad) and what are the top 2 or 3 things I can do to reduce indoor temps.

I've been hearing about using the aluminum bubble insulation stuff on windows I don't need to see out of. Any other suggestions?

EDIT: I'm also looking into tinting the windows. Anybody done this?...what brand, type, etc did you use?

I have found, here in Texas, to go get a big roll of Reflectix (as you indicated)at Home Depot or Lowes, its about 45 bucks. Cut it to size of the window, vents and anything else that can allow heat or sunlight in. Cut to match with scissors and wedge in the windows, round corners and such, inside your day/night shades. It will ride there going down the road also as well so you can leave it there when you park your 5er for the winter. It will protect your shades, valences, and the interior of your RV, if parked outside, from the sunlight that kills window dressings.
Clean those evaporator coils, since your rig is about 11 years old and the coils probably have not been cleaned, then do so. Home depot or Lowes has a spray/foam solution. You spray it on and can let it sit and allow the evaporation to wash it off. I spray it on, let it sit for several minutes then use a garden sprayer to gently rinse off and also jet inside the coils to clear the dirt. You will be surprised at what comes off of these coils. Make sure you use towel on the inside to catch any runnoff.
Lastly, make sure that your cold air and return air is not mixing in your air conditioner. On the inside, take off the grills, bezels and such, make sure that the air returning into the air conditioner and the cold air coming out of the air conditioner is isolated from each other. Aluminum tape, weather stripping are usually all you need to repair the isolation. I use a temp gun and point straight to the coils when running and it reads about 40 degrees, but the air coming out is 20 degrees or so colder than the return air. Take your time, use common sense and you will see and feel the difference. RVing in Texas from May thru Oct can be an experience with heat. Good Luck!