Sefaira for Revit uses information from elements built within Wall, Floor, Window, Curtain Wall and Roof families to generate an energy analysis. Other family categories will be ignored (e.g. Generic Models, Mass, Structure, Furniture, etc.).
Generate Sefaira views to determine what families/elements are being interpreted in Sefaira. Generating views will filter out all families that are not relevant for your energy analysis. Once you’ve generated views, you can click into your Visibility/Graphics (hot key VG or VV) to see the model families that Sefaira reads.