The 1588 does a good job but it is best to keep the temperature steady. You could keep the room at 80 all the time and it would work fine for example. The problem is that they do not adjust quickly enough.Hmm, the Hovabator model 1588 is supposed to keep and control temp regardless of changing temps outside the box. I assume temp control also plays a part in keeping humidity more constant.
Another problem in hot rooms it that there is no cooling in an incubator. if the room goes to 104 for example, the incubator cannot be any cooler than that temperature.