Thanks for the backup
cubby.
And for the record I don't do HVAC. I'm into Low Temp Refrigeration. (splitting hairs, I know)
Once again,
RicAnd, air circulation is the key. Think of it in terms of driving your car though Death Valley in the summertime with your A/C full blast vs. driving through someplace like Tahoe the same time of year. The A/C is going to work a lot harder & less efficiently in Death Valley.
I live in the Phoenix area & have a small commercial ice machine on my back porch. I have it on a timer to run only at night in the summer. If I were to run it during the day it would never shut off - it would work too hard. I mention this to give you an idea what you are up against.
Most of the companies will tell you to run those things at 85 to 90 degree ambient temp max. Once you start getting above that the efficiency starts to drop big time & will stress the compressors. It's not impossible to run a kegerator outside during the summer heat, just don't expect miracles.