Hi everyone, been listening to Jamil's podcasts and got "Brewing Classic Styles" a couple of days ago. He seems to emphasize the importance of fermentation temperatures alot and how he thinks they are one of the most critical aspects to making a good beer. Now I understand the easiest way to control lagers is to buy a spare refrigerator and put a controller on it to keep temps low and adjust as needed. However, what are some ways to control fermentations that you want warmer? For example, in his tripel recipe he suggests starting the fermentation at 64*F and raising it a little each day up to about 82*F so that the beer finishes dry. Now I've seen the Brew Belt which claims it will make a fermenting beer up to 20* warmer, but that's a constant. Any other equipment or techniques out there that could do the trick?