HVAC Summer Technical School

[Wheatmaster]

i'm looking at my options for this coming up summer (i know it's a little early, but it's too early to start planning), and I want to learn how to repair and install HVAC systems and wonder if anyone knew of technical schools that teach and train summer sessions (3 months). I'm currently going full time at a university so learning during the school year isn't really an option. I tried looking for what was in the Chicago area but i can't find much.