I need some advise on heating and/or cooling my fermenter. I'm in Reno, NV with 100 degree summer days and 0 degree winter days, my garage is not insulated and the way my house sits it could be 35 degrees in there on a winter morning and 50 degrees in there by mid-afternoon because of the sun. There is no more room in the garage to add another (even small) refrigerator. For those of you unaware of Reno weather (we are a high desert) we can have 45-50 degree temperature swings during the day summer or winter. Currently I boil in the garage, rack to my Catalyst Conical and place it in our hall bath. Works great for Ales (stays between 60 and 68 year around) but I would like to do some Lagers. My budget <$200.00. Any thoughts and thanks in advance.