Software for HVAC design
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News
The Heat Loss app has been updated, adding a function has been added to insert rooms from an image file with a schedule.
13.06.2026
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A version of the HVAC Calculator has been created for mobile browsers on Android and iOS.
09.01.2026
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All online applications have been updated and now have a dark theme.
04.01.2026
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Dynamic Blocks for AutoCAD

Dynamic blocks are a great solution to create drawings.

Using this set of 160 blocks, you will be able to draw any HVAC schematic drawings quickly and easily.
Download blocks
Settings

The AutoCAD file must have the wipeout area frame off, this can be done with the _wipeout command.

For convenience, it is recommended to add blocks to the tool palette, as described in the AutoCAD User's Guide.
Video review
Just watch video and start working.
SITE APPS
Home Heat Loss
News HVAC Calculator
Site Map Psychrometric Chart
Contacts Heat Pump
Aerodynamics
Kitchen Ventilation
Pool Ventilation
Ductwork Surface
Unit Converter
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