How can you increase your profits? When I ask this, I don’t mean marginally. Back when I was a younger buck and feeling pretty sure about how to design/install PHVAC systems, I attended dozens — if not hundreds — of seminars put on by manufacturers. Unfortunately, far too many were little more than promotion of their products with a smattering of education thrown in to somewhat quench your thirst for knowledge.
I was overly confident my skillset in hydronics was rock-solid. Back then, there were no computers, smart phones or the internet. Manual-J heat loss/gain calculations were done by hand, and could easily take hours to complete. As a result, we did them only when we weren’t confident of the outcome and, no doubt, oversized boilers were common.