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 ...

Developers and owners of residential homes are generally keen on keeping heating and cooling costs as streamlined as possible without sacrificing performance. A properly sized system costs less to run ...

Manual LLH deals with the unique HVAC design issues associated with homes that exhibit low cooling and /or heating loads (per Manual J® load calculations) and identifies equipment options / approaches ...

Note: This article is based on the 2008 NEC. A dwelling unit is a single structure that provides complete and independent living facilities, according to the NEC definition found in Art. 100 (Fig. 1).