Manual J may overestimate heating loads due to conservative assumptions and sensitivity to unknown insulation values. Thermentor™️, a virtual load calculation solution, is an alternative to Manual J.

Question: How do I know what size A/C system my house needs? Answer: When considering the size of your central A/C unit, there are a few factors in play. Primarily, the size of your house is used to ...

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 ...

FineHVAC, advanced software for HVAC design, combines design and calculations within an integrated environment, performing all the required calculations directly from the drawings, and automatically ...

Before you can size the branch circuits for a dwelling, you must calculate the loads. Article 220 allows two distinctly different calculation methods: the standard method in Part III and the optional ...