A common viewpoint for HVAC engineers is that eQuest is a great modeling tool but CANNOT be used for loads. Designers will typically use an additional tool more targeted to loads or may do all load calculations in a spreadsheet. However, it may surprise some, but eQUEST calculates loads before it calculates energy. In fact, eQUEST MUST calculate loads in order to calculate energy.

Consider the many pieces of information entered in an eQUEST model: Occupancy loads, equipment, geometry , envelope properties, and so on. These parameters determine building loads as well, and eQUEST does just that - quickly and accurately calculates building loads. The main problem with using eQUEST for loads is that the bulk of the reporting...

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