For those who have been in the industry longer than I have (pretty much everyone) and for those who have been in it longer than most (I'm looking at those of you with 30-plus years of experience), we sometimes need a reminder that there's still learning left to be done.

I have a sneaking suspicion my a/c is not going to make it this summer. So I'm preparing for the worst, putting pennies away now for the inevitable breakdown. And what do I do? Call a contractor to come out and take a look at my suspicion? Nope! I'm going to be an idiot and wait until it goes down.

 Not the Delta T I was expecting from my first HVACR excursion. 

In just four years, Haitian immigrant Nesli Francois has moved up the ranks with Westborough, Mass.-based Conservation Services Group (CSG), growing from an apprentice to the highly coveted role of energy specialist.

Follow editor Matt Bishop's first-time AHR Expo journey at #AHRRookie.