So I finally found a place to load test the roof AC units. We have been traveling down I-10 from Houston to I-8 and on to San Diego.

Out of Houston on Sunday evening, we ran the dash air and two ACs on inverter and it was plenty cool.

Started with that Monday morning and ended up with the generator on around Fort Stockton with the OAT around 97.

Started this morning in Las Cruces with the generator and 4 ACs and hit Tucson at about 104 and still cool.

Now we are between Gila Bend and Yuma with the OAT at 112. Dash AC is on high as are the 4 roof air units. The roof airs are running a 14 to 12 degree delta between inlet and outlet and holding the front of the coach around 77. The galley / rear is 73. The sun is shining in the front quite a bit.

The roof on this coach is not coated which I think makes a big difference.

I never had our OTR air coach out in this kind of heat but so far we have made it thru the heat of the day pretty comfortable.