InstalSystem package is intended for supporting the designing process of indoor heating and water supply systems. The package is composed of software for:

• calculations of heat losses in buildings and seasonal energy demand,
• central heating and radiant heating systems design,
• internal water supply systems and sewage systems design,
• listing and costing of materials for heating and sanitary system design.

InstalSystem package is offered in company versions and in InstalSoft version.

• Demo / trial version
• Activation
• Order forms / Price lists

InstalSystem 4 package is available in the following market versions:

Austrian	Bulgarian	Chinese	Croatian	Czech	English
Estonian	French	German	Hungarian	Iranian	Italian
Latvian	Lithuanian	Polish	Romanian	Russian	Slovak
Slovenian	Spanish	Swedish	Turkish	Ukrainian

The newest, currently available, version of the InstalSystem 4 package is: 4.13 Rev 21-xx.xxxx
In order to check which version is currently installed on your computer, program version in the "About the program" window, as "Version" and "Rev.", must be checked. Performing update from the Internet allows you to obtain the latest version of the software and all associated changes.
As functional development of version 4 is no longer maintained, we have stopped to release information about particular publications and their detailed content. New publications for InstalSystem 4 currently take place every few months and may provide:

• protection settings for individual licenses,
• updating some product libraries,
• program corrections or minor functional modifications.