How can you tell if a web site is trustworthy or not? It's not always easy, but there are things that you can look for that will help you decide.
Use the drop-down menu on this tab, above, to go to specific topics.
These are generally higher quality sites than found through Google or Yahoo searches.
When you do use Google, be sure and carefully evaluate the results. See the box to the left.
Finding unfiltered information on the internet about HVAC/R is easy. However, frequently you will get too many entries and many of them will be irrelevant to your specific topic. It requires some skill to do effective searches with focused and relevant results. These sites will save you time. Try our Search Tips to improve your searching skills.