BIMware REX Heat Load is an add-in for Autodesk Revit that automates room-by-room and zone heating load calculations directly from your BIM model. It reads Rooms/Spaces, construction assemblies, and design parameters to estimate transmission and ventilation losses, helping you determine peak heating loads for equipment sizing.
You can define indoor setpoints, climate data, ventilation and infiltration rates, and material properties, then run calculations that remain synchronized with model changes. The tool generates clear reports and schedules with room and zone breakdowns, plus project summaries, and supports export for documentation or further analysis.
By eliminating manual data transfer and keeping calculations tied to the model, BIMware REX Heat Load accelerates design iterations, reduces errors, and supports consistent HVAC decisions from concept through detailed design. It’s aimed at MEP engineers, HVAC designers, and BIM coordinators working in Revit-based workflows.
BIMware REX Heat Load is developed by BIMware. The most popular versions of this product among our users are: 2.0, 5.0, 6.0 and 8.0.
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