Free app "duct calculator"

Our app "C.A.T.S. duct calculator" is getting more popular day by day - also internationally! Up to now there have been more than 20.000 downloads. Our duct calculator lays out like a conventional channel slide round, square and oval ventilation channels. In addition, it calculates the channel surface and the insulation allowance. Both the metric system (mm) and the imperial system (inches) are supported. The android version of this app is available in Google Play Store in English, Italian and German and it is for free.



CAD for sprinkler technology


Our CAD system for sprinkler technology has been used successfully by installation companies and planners for more than 25 years. The integrated calculation according to the Hazen-Williams and Darcy-Weisbach method, as well as the calculation of foam, are authorized by the Association of Insurers VdS. See the application in practice or test our free 15-day version

PLEASE NOTE: We now offer the possibility of using our separate Windows calculation without CAD - free 15-day version sprinkler calculation for Windows.

C.A.T.S. Online Seminar

BIM (building information modeling)

Our BIM expert – Mr. Klaus Benthin (MSc Computer Science) - demonstrated on 27th April 2016 to more than 120 participants in an online seminar the possibilities of BIM.

· Import of a 3D model in C.A.T.S. Software
· air quantity calculation - according to various norms
· construction of a ventilation system including pressure loss calculations
· export of the 3D construction into BIM-platform REVIT
· representation of the 3D construction incl. all important informations in REVIT
· generation of bills of material of all C.A.T.S. components in REVIT

 To review please click here.

We would be pleased to present our C.A.T.S. Software personally online. All technical questions can be answered during the presentation. Please contact us to arrange an individual appointment! This email address is being protected from spambots. You need JavaScript enabled to view it.

Thank you for visiting us in Orlando!     


C.A.T.S. Software – Professional MEP CAD based on AutoCAD logo ashrae

Thank you very much for visiting us at the AHR expo, Orlando!

As partner of EUROPAN we were happy to present our professional CAD applications with integrated calculations for duct work, sprinkler and MEP.

We hope we could give you a good overview of our CAD solutions, based on AutoCAD.

If you are more interested in our applications, we can offer you a free trial version of 15 days:  free trial

For further questions, please don’t hesitate to contact us:  This email address is being protected from spambots. You need JavaScript enabled to view it.