Data Harvest acquired much of Unilab’s educational software IP. Their website sometimes provides free downloads for obsolete titles. Go to data-harvest.co.uk → Support → Legacy Software. Look for or "Unilab Simulations" .
Windows 10 or Windows 11 (64-bit recommended). Processor: Intel Core i5 or AMD Ryzen 5 (or higher).
If you are looking for free alternatives to start designing quickly, several other reputable brands provide their own selection software:
Engineers can analyze and manage multiple projects simultaneously, making it easier to compare different design approaches or handle complex proposals with multiple heat exchanger configurations.
This modularity is particularly relevant when considering a free download—while the full Professional version is a paid commercial product, lower-tier versions may offer more accessible entry points, and free trials are often available for qualified customers.
