In the 1980's Computair were the first to put psychrometric charts on to PC's. Since then they've been a standard component of our coil selection software. We are now making our psychrometric tools available on the web for free!
You can use the psychrometric chart right now for free. But if you become a registered member of Computair.com you get some extra features. Registration is simple and free, just visit our registration page.
* Entry of air on and air off
* Calculation of cooling curve
* Support for heating conditions
* Support for SI and British Imperial (English) units of measure
* Charts available for download as PDF
* Charts available for download as high resolution PDF
* No logos in charts, or add your own logo and watermark images.
