What do turf wars, battle lines, and tug of war have in common? They are all being mentioned by people involved in the creation of two rival commercial HVAC load calculation standards, one from the ...

ATLANTA - The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) notes that there are multiple heating and cooling load calculation methods to determine system and ...

The NEC contains detailed requirements for calculating service and feeder loads in many types of occupancies. Although most of these requirements are found in Art. 220, other rules affecting service ...

I'd like to build a wood shed to hold firewood. I'd like to build a raised structure supported on concrete blocks or some other kind of foundation, if possible. Traditionally, people either just throw ...

Recent roof collapses illustrate the danger that accumulating snow and ice can pose on buildings not constructed to withstand that load. Most central Pennsylvania roofs, if built correctly, should ...

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.