HONOLULU, HI — In commercial, residential, industrial, and institutional HVAC design, it is critical for design contractors and engineers to perform a load calculation. Not only is it important for ...

Load calculations, and using software to do them, are key traits of the contractor of the future, according to a new ACCA ...

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.

Requirements for branch circuits, feeders, and services each have their own Articles (210, 215, and 230, respectively). The NEC also contains an Article providing requirements for outside branch ...

Using load calculations to identify the proper sized equipment can help build trust with your homeowners and differentiate your business for its competitors. This week, Drew Cameron introduces an HVAC ...

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 ...

The 2026 National Electrical Code introduces important updates to conductor sizing, load calculations, and safety measures that electrical pros must understand. From adding 16 AWG copper allowances ...