Looking at one camper with unducted A/C

I have owned both.
The inside ceiling mount A/C is very loud and freezes you out 'where' it is located and the rest of the RV is hot.

And because the unit is located up front where you spend most of the time you want to turn it down to be able to hear and to stop the icicles on your nose from forming and then the back of the RV temps shoot up to unbearable and then ultimately the whole darn RV gets hot. :R

My second RV is ducted and with plenty of movable ducts to adjust the air flow to each room and/or redirect the airflow.

IMHO, JMHO the most efficient way to go and the most comfortable way to air con an RV. And in turn heat the RV.

Hi,

Ducted is much quieter. Many ducted units have an "air dump" so you can cool down the kitchen area faster. Best of both worlds.

Is the front roof vent pre wired for a second AC? if so, no problem, just add a small one if you find it is necessary. can always run another cord to plug into different receptacle on the campground post.
bumpy

Never owned a trailer but can't be much different than motorhome. I've had four and the current one has ducted AC. Ducted will distribute the air more evenly. I never had a problem with the non ducted units. Either one will have a hard time cooling down a unit that has been out in the sun all day with no AC going. Trees are your best friend for keeping your trailer cool.

Others have added a second unit and wired separately. Sounds like a plan.

We had a 28' sportsmen with a single 15K non-ducted AC on the Texas Gulf Coast.
It worked fine except on the hottest days. There were days when it would be 100 outside and the AC gave it all it had to hold 85 inside.

The main problem was it was Very NOISEY. A non-ducted AC is Very Loud inside. The ducted system produces much less noise inside the camper.

Our last two were a 35' TT and a 32' FW, both with ducted systems. Either has no problem cooling the camper down into the 70' during the hottest of days down here. Both have a single 15K AC. I'm sure better insulation plays a big part in this.

Folks seem to make liberal use of a single 1500 watt space heater with the heat spreading ok.

The issue in my mind is if you have walls and/ or want to close doors.

Lived with window AC in real house and often cooled the whole thing with the big AC in the living room. Had a fan to help, but rooms with closed doors didn't cool but our bedroom at the far end was comfortable with a desk fan in the hall.

I'm thinking that most open style campers will be ok...bedroom partition or the bathroom could be warmer areas.

I would avoid it! We had a 29' Sunline TT and it had ducted AC. I wouldn't want a non ducted AC trailer unless it was very small. There are so many different trailers available that it doesn't make much sense to me to buy one without ducted AC and heat. The fact that you are in Texas would seem to indicate that even more.

I have to ask where in Texas.

Our first TT had a single unducted AC - and it was a 26BH, which meant it was 30 ft ball to bumper.

It would make the TT livable in 100-105 degree times in north and central Texas as long as there was some shade on the trailer. If no shade - it took a couple fans to keep us from sweating all the time. That silver cell foam type stuff from Home Depot on the sunny side windows really helped.

However, along the Gulf coast or in southeast Texas - Beaumont to Livingston to Victoria - the AC was completely unable to keep the humidity down and the trailer cool.

Worst for us though was that the AC was controlled by a switch in the unit. The compressor would cycle off as the temp got cool enough - but the fan would stay running. All the time. We could not talk in the rig, watch TV and it was a bit loud for trying to sleep - though we got tired enough eventually.

Replacing the roof vent with a second AC - likely too much work and too expensive to be useful. And a lot of CG would be unhappy with a second AC running directly from the 20Amp plug.

One requirement we insisted upon for our new TT was 50 Amp service with two ducted ACs. Based upon our experiences with summer Texas heat and coastal humidity.

I would not recommend any rig with less in much of Texas.

(Though we did spend last summer in the Chisos Mountains of Big Bend NP - at 5,400 ft elevation and only slept three nights with the AC running. The rest of May, June and July - we slept with the windows open.)

I haven't been in extreme temps with either of my rigs but there seems to big a difference in noise level with ducted vs non ducted systems. Maybe it's just the models I experienced.

I would at least try it first. There are many variables such as insulation, slides, types of shades/blinds in play here.

Our 29' Holiday Rambler which we kept for 20 years cooled just fine in Texas with the one 13,500 btu A/C. It did not have slide outs though. Used it all over Texas and never had any issue with not keeping us cool in the hottest times of the year.