Pilon is a stickler for the rules, but he's a nice guy. He's approachable, because after a week or two you get to actually know him as a guy and he's tenderhearted af. Still a stickler though. The class is tough but he explains things very well and ties in interesting real world examples of heat flow (Santa Ana winds, how an elephant's ear dissipates heat). He makes a very tough subject digestible and helps out out along the way. If you take his 131A class you'll definitely learn a lot.

Pilon is a great guy, but this class was kinda tough for me. He's very particular about everyone being in class on time, no phones in class, etc.

It's the exact same as 105D, but with a lot more math involved. He likes to focus on the derivations and proofs of the heat transfer equations, which I wasn't a fan of.

The homework took a lot of time every week; without Chegg I would have been screwed.

The exams weren't terrible, as long as you understand the fundamentals of the class and not just the equations.

The project at the end of the quarter takes a long time, but it's pretty interesting and overall not too bad.

I'd recommend taking this class just to get to know Pilon, but the math-emphasis diminished my interest in heat transfer.