The room temp is normally 75-78F, which is close to 25C, I think. Though, when I ran the Blend test yesterday, I had just come home and my A/C is set higher to 80 when I'm out. I'm getting 32-34C right now with the room at 78F. Still higher than what I was getting the first day, but I've been reading some reviews and a few of them had similar idle temps. Like I said, not attached to this thing yet, I may still return it for a refund and spend a little extra on an ECO ALC or H50 if either does a better job. I'll try to re-apply some compound later, Shin Etsu X23, to be exact (ran out of AS5 and got the X23 from a buddy).