Software solution for Your HVAC projects.


All calculations intgrated in one application. All modules according to valid European norms. Flexibility and speed at your fingertips.


Our standalone and integrated CAD module supports AutoCAD format up to version AutoCAD 2015. Draw2Calc makes heatlosses calculation like childs play.
It's easy and fast.


Full printout of bill of material and calculation results. Easy translation and customization of printouts.

IntegraCAD integrates both drawing and tabular calculations in one powerfull package.

Available modules

Here You can find available modules in IntegraCAD.

* All modules can be found in our ultimate package. Some video samples can be found on


IntegraCAD is using USB licencing key with time module. License is sold on an annual basis and the minimum you can buy is one year or 365 days.

USB licence holder

provides the ability to transfer license among computers but the software will work on the computer that has usb licence key pluged in.

50€ per key

IntegraCAD ultimate 365

includes all modules that are available in this software package. Annual license is available 365 days from the date of purchase, has all available modifications and has access to all updates and corrections related to the modules covered by license free of charge.

IntegraCAD ultimate lifetime

includes all modules that are available in this software package. Lifetime license has no time limitations, has all available modifications and has access to all updates and corrections related to the modules covered by license free of charge.


Here You can find all available downloads of IntegraCAD software and it's OEM versions

IntegraCAD full software package

This is full version that requires USB licence key to work properly. Current version is 8.0.20032017.0


This demo version is for testing purposes and it's working without any licence. Demo version has some limitations like 2 floors per project, 5 rooms per floor, disabled saving and printing...

Integra guard

Client application for monitoring and managing USB licence key.


IntegraCAD started as an entusiastic home project for DOS 25 years ago. Soon this product was found very usefull to mechanical engineers and from there started the growth and development of IntegraCAD. From Termo for DOS through Windows 95, 98... till today IntegraCAD has grown to a software package with about 15 different calculation modules, with catalogue filled with equipment of more than 20 different manufacturers.

Fun Facts

10 IntegraCAD OEM versions
10343409 lines of code
600 and more sold licences
4000 OEM licences of partner software versions

Get In Touch

If You have any question feel free to contact us.

Contact Info

  • Dragutina Tadijanovića 2
    51000 Rijeka, Hrvatska
  • +385 (51) 550 600
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