Over the past few years I have been around soap forums, this topic has came up many times. The general thinking is that it will not work. There is more heat than the bars can stand, even with the internal fan.
If you want to speed up cure, get a dehumidifier. Use a closet in your home, seal it as best as you can. Place a small dehumidifier in the room with your soaps stored on racks with plenty of spacing. Check water levels if there is not an automatic shut off on the dehumidifier.
I have a dedicated soap room that I do run a dehumidifier in the summer, even though we have central air.
"With enough soap, you can blow up just about anything." --Fight Club