Yea. When it hit about 90-100+ degrees outside the tanks get to about 80-85 seen it once at 87. I'm planning on getting an AC unit installed for my room. Since I work nights and sleep in the day it becomes difficult to sleep in the 90 degree weather. I wanna make sure to get a big unit that way it wont take much to cool my room since I only want it running when I'm there and only when the temp becomes to over whelming for me.