Heat pumps are now the primary comfort choice for American citizens. In 2022, for the first time, heat pumps outpaced their gas furnace counterparts in annual sales. This surge in heat pump sales ...

A multifamily dwelling is one that contains three or more dwelling units [Art. 100]. Though similar, single and multifamily dwellings have distinct differences. The wiring method used for a ...

As we've discussed in the last two Code Calculations articles, when calculating the total load on your system, you must first identify specific types of loads. Then, you can calculate each load. For ...