THE FIRST STEP when specifying and recommending a residential heating system is to determine the heat load for the project. Here is software that can speed that process and guarantee accuracy.

This is part 1 in an ongoing series on HVAC load calculations. The folks at SNIPS have asked me to do a basic how-to article about HVAC Manual J load calculation as that is allegedly a big part of my ...

Not long ago a residential load calculation — also known as a heat loss calculation or a load calc — was something you had the luxury of skipping. There was a good reason for avoiding it. It was ...

COMFORT MATTERS: When a furnace is sized for the home’s actual heating load, it offers greater comfort, often with a smaller, less expensive furnace. May 20, 2019 HVAC professionals might be surprised ...

Based on the 2020 National Electrical Code. Part 1 of this two-part series taught you how to calculate branch-circuit loads. Now let's review how to perform feeder and service load calculations.