QUEBEC CITY - The great divide between HVAC contractors and engineers is probably at its widest point where residential load calculations are concerned. Contractors don't see a practical way to do ...

Last Updated on August 6, 2026 by Ellen Christian Arizona homes depend heavily on cooling during hot months. The U.S. ...

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 ...

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 ...

HVAC ResLoad Mobile App for iPad (www.carmelsoft.com, 800/339-6030) is an ACCA-approved cooling and heating load calculation app that performs peak cooling and heating load calculations, per ACCA ...

It is mandatory that refrigeration load calculations be performed during the design stage in order to properly size the components. Load calculations are useful on other occasions as well, such as to ...

If you haven’t seen or heard yet, the 2020 edition of NFPA 70 ®, National Electrical Code ® (NEC ®), is set to hit the shelves this fall. As we at the National Fire Protection Association (NFPA) are ...

This chapter covers cooling and heating load calculation procedures for residential buildings, including detailed heat-balance methods that serve as the basis for cooling-load calculation. Simple ...

Based on the 2020 National Electrical Code. Article 220 of the 2020 National Electrical Code (NEC) contains the requirements for calculating demand loads for branch circuits, feeders, and services.