Thor Forums

[Chance]

Originally Posted by Brooks2017

I currently own a 36 foot travel trailer and was told the 1 AC would be sufficient.WRONG. So my question is at what length should you start considering a second AC unit?

fotofx is right -- size is just one variable.

Assuming you're in Alabama and want to camp in summer, there is little doubt in my mind that a 36-foot trailer should have 2 air conditioners (of roof-top type limited to no more than 15,000 BTU/hr capacity per unit).

Some central air conditioners are much larger but since you didn't mention that, I'll assume you have a 15k roof-top A/C.

In my opinion any RV much larger than 25 feet could use more than a 15K A/C in the south during summer. Some 27~30 foot RVs get by with one air conditioner, but they have to be much more diligent at reducing heat load.

Originally Posted by fotofx

The size of the RV is only part of the equation. Heat load, humidity, outdoor temperature, color of RV, number and locations of windows receiving direct sunlight and even number and size of slides all have an effect. Add in a washer/dryer and you have even more heat load.