New Basic Refrigeration Cycle tutorial and Recovery Precautions quiz on Quia                     (click on button to left)  NOTE: EPA PRACTICE EXAMS ARE NOT AVAILABLE AT THIS TIME! CHECK BACK SOON.

For Refrigeration related Crossword Puzzles go to http://www.hvacrinfo.com/crosswords.htm                    and be sure to visit Powell's homepage at  http://www.hvacrinfo.com/ for lots of good industry                       related links.

Click on image to left to download Prof. Koldenhott's unique PowerPoint                           presentation dealing with the concept of Back EMF.                                                  You might learn something new!

For excellent tutorials on anything airflow, click on the image to the left.                                             These training module are some of the best I've seen.  Follow the links to Training Modules.

VGI (Video General) produces excellent training materials. Click on VGI to go to their online catalogue.       They produce the Lennox training materials.

Click on the HVAC-Talk.com link to visit a site that will have you laughing, crying, pulling your hair in frustration at some posts, but most of all, inform and enlighten about the HVACR industry.

Do you have air conditioning books, videos, cds, and such?  And would like to trade?      Email Jim at hvacpope@yahoo.com for a list of what he has to trade.  Tell him that Prof. Koldenhott sent you.

Need help with customer service issues in your HVAC business?  Steve Coscia can help you out.  Met him at the HVACR Instructor's Workshop in March.  Check it out at www.HVACcustomerservice.com

Watch this page regularly as more links of some of my favorite web resources are added.  Also, as a bonus, you may find presentations that I've created.