> Won't air conditioners stop working altogether above certain temperatures? Anecdotally, my central air didn't start to give up ground in the battle with the

> Won't air conditioners stop working altogether above certain temperatures? Anecdotally, my central air didn't start to give up ground in the battle with the heat until the ambient temperature was about 115. Even then, the house only gained about 3 degrees F before coming back down a couple hours later when the ambient was back below 115. IIRC, current residential air conditioner technology is engineered with the condenser expected to run at 120F. So it makes sense that this is the threshold where it stops being effective. God forbid we ever get heat waves over 120 in Oregon, dang. I mean, we got close this last time, so never say never, but ... damn. I'll be moving if that happens.