Rich visual 3D mine ventilation simulation software

Accurately model, design, evaluate, and optimize underground mine ventilation systems.

Ventsim DESIGN creates an accurate simulation of the ventilation environment. Real-time animated 3D graphics represent actual airway dimensions and shapes with animated airflows.

Ventsim DESIGN is an expert tool that’s useful in all stages of ventilation design, from assessing needs and selecting hardware in the early planning stages to ongoing optimization of everyday operations in a working mine.

Howden mine ventilation engineers use Ventsim DESIGN simulations to create an optimized plan based on your existing mine infrastructure. Hardware and instrumentation is strategically placed in your mine model for maximum productivity based on accurate calculations of power and airflow.

Already got Ventsim DESIGN? We can audit your model



Ventsim DESIGN licensing levels

Advanced version

  • Full 3D modeling with smooth rotation, zoom, and pan
  • Real-time automation of airflow and fans
  • Airflow simulation and fan modelling
  • Basic contaminant spread, sourcing, and emergency simulation
  • Import centerlines and solids from other mine planning packages such as Deswik and Datamine, as well as DXF
  • Thermodynamic heat and moisture modelling, including:
    • Strata heat and moisture
    • Diesel heat and DPM emissions
    • Refrigeration
    • Electrical heat sources
  • Compressible airflows and self-adjusting fan curves
  • Blasting fumes dispersion and clearance times
  • Financial analysis wizards
  • Recirculation predictor

Premium version

  • All features of Ventsim DESIGN Advanced.
  • Radon simulation to predict worker exposure levels
  • VentLOGTM ventilation survey record software.
  • VentFIRETM fire, gas, heat and airflow direction simulation.

Full Brochure

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Hear from our satisfied customers


Ozvent Consulting

I’ve been using Ventsim for design and trouble-shooting consulting work since 1995. It has integrated a wide range of airflow, heat, fire, and radiation modelling functions that previously required separate programs and calculations. However, by far the most important features are its clear 3D graphics and ability to quickly set up a model by importing mine design files.

Andrew Derrington, Director, Ozvent Consulting

VOHE Solutions

If you are looking for an accurate and cost-effective ventilation simulation package that offers a superb user-friendly, intuitive environment with excellent 3D graphics, you need look no further than Ventsim.

It is my simulation package of choice!

Shane Ambrosio, Director, VOHE Solutions

Dallas Mining Services

I have been using Ventsim specifically for my work since the late 1990’s and I quite simply would not be able to do my work without this amazing software.

Craig Stewart, the software creator, is continually refining the product which keeps it well ahead of the competition. For the work that I put the software to, I don’t believe that there is any credible competition in the marketplace.

Aside from the obvious ease of use of Ventsim Visual along with its amazing aesthetics and capabilities the user can be confident that the after sales service that Craig provides to anyone who utilises his software is second to none. Nothing is ever too much trouble and Craig will do his best to ensure his customers are always satisfied, no matter where he might be on the planet at any particular time.

He’s a bloody good bloke who has built an incredible piece of software that he stands right behind. I couldn’t recommend his company or his products highly enough.

John Rowland, Director, Dallas Mining Services


Ventsim DESIGN Library

Compare the features of Standard, Advanced and Premium and view prices in Australia

Compare the features of Standard, Advanced and Premium and view prices in United States


Sales and Support

Lifetime Support

Howden develops Ventsim™, CSafe™ and Pumpsim™ software and can direct sell to the customer. We also provide a range of hands on training and consultancy services, including site based training and Ventsim assistance. Contact us for further information.

If you would like to submit an enquiry please get in touch.