As far as heat goes, here in Arizona, a common technique is to wrap a stock in several layers of paper towels and put it in a black trash bag. This is then left out in the sun for a day or two, changing the paper towels as needed.
I've never done it, but I'm told it works well for sweating out just about everything.
A buddy of mine actually applied a liberal coating of oven cleaner, then the trash bag in the sun. He swears it works wonders for a poorly shellacked bubba stock. I don't think I'd try that one though.