Do you need to take a test
for NATE, ICE, or RSES certification? If so, then you'll want to have
this terrific guide in your corner. It covers:
lot of good stuff here to get you prepared. And even if you're not
looking to take an exam right now, this guide is a wonderful way to test
your current knowledge of HVAC. It may inspire you to learn even more.
And the more you know the more valuable you become.