**Penn Foster HVAC Program** Penn Foster's HVAC program is a great program for busy people who need to make their own schedule. Read courses on-line (and/or at home) and then take the on-line exams whenever you are ready. No dead lines and no pressure for those of us with busy schedules! Once you complete an on-line exam (with a passing grade) Penn Foster will mail the next available coarse to you automatically. The books they send are very easy to follow and understand. If you ever have a question that stumps you or you don't understand, you can always contact a live "Penn Foster Professor" who will talk you through your problem / question. Penn Foster typically likes you to finish the HVAC coarse within 1 year. However, if you need it they will give you an extension when asked. The fees for the Penn Foster HVAC program are reasonable, and they offer payment plans if needed. Overall, I would highly recommend taking the HVAC and or other Penn Foster programs.