2nd Air unit on fifth wheel?

[Evil Eye]

Interesting idea, although I might be interested in buying the root top unit just so I wouldn't have to deal with the hassle of putting it in and then taking it out each time we stopped. Do you have any pics of the setup? I would consider it so long as it wasn't to much of a hassle (and didn't look horrible!)

[luckydog]

I know I'm a little late jumping in on this one, but:
I've seen the window unit ACs hanging on the outside of RVs. If fact, one almost hit my car when a neighbor's unit fell off. The nature of RVs prevents a window unit from being properly secured. The neighbor's unit was braced from underneath (to the ground). When the RV rocks, the bracing loosens... and eventually fails. So, besides looking tacky, they're dangerous when not properly mounted. I'd recommend an RV AC unit mounted in the location for which it was designed. It may take time, but the wires CAN be snaked through the ceiling and down a wall to the breaker box (for 50A units) or arranged somewhere so that a heavy duty extension cord can be run from it to the power post (for 30A units).
Just my 2 cents.

[dennis11]

There is no need to brace the unit because it sits in the window just fimne and the winow in mine comes down on top of it and holds it in place. When i move I simply raise the window and remove the unit to the inside of my fifth wheel and put it on the floor to travel. It takes 2 minutes to put it in place and less time to remove it. There is no driving with it and it is a temporary installation in very warm weather.

[luckydog]

That's what my neighbor thought. Just walking through the RV is enough to shake one loose after a while. High winds (gusting to 35 mph) rocked his enough to wiggle it enough for the AC to drop and land just two feet from my car. His was mounted like you say you mount yours, but he added wooden bracing from the unit to the ground, as a "safety measure". Good luck with yours. I wouldn't take the chance. But, I bought a fifth-wheel with 50A service and two ACs, because my "home base" is in Louisiana. We're full-timers who haven't gotten the "snowbird" thing down pat, yet. We've even visited Reynosa, Mexico, over the Fourth of July! Even with two ACs, one 15K and one 13.5K, sometimes it takes up to six hours to cool the RV down after parking it, but the trailer is over 38 feet long. RV ACs are only designed to drop the inside temp to 20 degrees below the outside temp.