8000 btu A/C in small bunkhouse?

How does it do in 90+ degree weather?

Our Jayco 195 has the 8,000 unit and I would not take a trailer of this size with anything bigger.

I like the side mounted unit better than the ones on the roof. It has ample cooling. It requires a smaller generator for boondocking. All positives, no negatives.

Having said that, our hottest temps are in the 90's.

35 and 1/2 foot TT with 3 slides here with a single 15,000 AC. Works great. We replaced the original 12,500. It just couldn't do it. Now granted, we camp mostly North of the Mason-Dixon line, so our summer temperatures are no comparison to Florida or Texas. So we do Florida in the winter.

But you take half the trailer (say 18 feet) and half the BTU (say 7,500), the cooling capacity would probably do just fine.... even in Texas summer.

The item that is more important than the cooling power of the AC is the insulation of the RV itself. If the insulation is good, a "lesser" AC will do well. If it's not insulated good, even a strong AC will not keep up. 99% of the comfort level of any RV is the insulation properties of the camper itself, and it's windows, and cracks and air leaks.

I'd look at it this way. We have a 40' DP that has two 15,000 A/Cs. They do alright in hot weather at over 100*F, but there's nothing there to spare.

The bunkhouse you're looking at is 20', half of our 40', therefore I wouldn't want to go with less than half of our cooling which would be a single 15,000 A/C. It get's hot in Texas. You can always turn it down, that's for the thermostat is for, but you can't turn it up past its capacity.

Bill