Ventsim™ 4.1

Ventsim 4.1We have just released our latest version of Ventsim – Ventsim™ 4.1!

Ventsim™ 4.1 is an incremental upgrade to Ventsim™ 4, and includes many new features and improvements. Visit our Download page to obtain the latest version of Ventsim™.

New Features of Ventsim™ 4.1

  • VentFIRE™ Presets – Preconfigured quick settings for VentFIRE
  • Reference Graphic Layering & Staging – Reference object graphics can now be assigned to Ventsim™ Primary and Secondary layers, and Stages. Use the SELECT > REFERENCE button to fence or click reference graphics, then press the EDIT button.
  • Deswik.CAD Compatibilty – Deswik.CAD can now export a fully scheduled mine plan into a Ventsim™ file. Ventsim™ airways are automatically built at the correct size and shape, including stope or orebody graphics/reference files, and are automatically assigned to different stages to show the mine development over time. A real time saver for Deswik / Ventsim™ users!


  • Performance Improvements – 300% faster simulation for VentFIRE and Dynamic Simulation with revised optional ‘quick’ method.
  • Airflow Simulation Algorithm – Improvements to the airflow simulation algorithm for difficult-to-balance models.

Ventsim 4Ventsim™ 4.1 is available to purchase now and is backwards-compatible with Ventsim™ 3 model files*. Current Ventsim™ maintenance holders will be able to upgrade to Ventsim™ 4.1 at no additional cost.

* Ventsim™ 4.1 model files with new Ventsim™ 4.1-specific features will still open in Ventsim™ 3, however these new features will not function in Ventsim™ 3.