A couple of factors made my first AC installation successful when we toured the South in August last year (yes, I know, I'm from there and that's why I'm not there now). First, I bought the cheapest AC I could buy ($25 used for 5K BTU). I placed it in a cabinet at knee level. Then I almost doubled the investment by adding two AC fans. One sits on the floor in front of the low-mounted outlet and and blows cold air straight up, and the other sits in the cabinet behind the AC and forces heated exhaust air out fridge's old louvered panel. I placed the AC on a plastic dish drain tray (oh, the expenses never stop!), positioned to catch condensation and pour it off outside the trailer wall.
In five minutes, I could get the trailer comfy, and really cool in ten, when it was over 90 and 90 outside. So for less than $50, I got an effective installation that carries its
weight low and over the
axle. When I want to carry the
weight at all, which won't include many summer trips into my closest caming areas, the Rockies.
Making up for that bargain, I spent nearly $450 on a MaxxAir fan, installed. Now for the Olympian wave catalytic heater, that's next. I've heard a propane furnace roaring inside a pop-up, and I don't want that inside my
Scamp. Don't want a heater that's dependent on 12V power, either.
Good luck to you. These expenses are worth it because they entend your camping season.