air conditioning load calculations SOFTWARE, HVAC, refrigerant, air conditioning load calculations, refrigerant recordkeeping, EPA compliance software, refrigerant compliance software, refrigerant tracking software, hvac software,



 

Welcome

We believe programs should be small, fast and easy to use. For these reasons we are constantly tweaking our programs to make them smaller, faster and easier to use as well as adding new features.

In 2007, Microsoft introduced Windows Vista, which changed some of the rules that programs must follow. HVAC-Calc Residential 4.0.53 and HVAC-Calc Commercial 4.0.53 and any version numbers higher than this will work fine on Windows Vista and on older operating systems such as XP or Windows 2000.

To check your programs Version Number, simply look at the upper left of the title bar when the program is running.

Unfortunately this means that all CDs shipped before February 12th 2007 will not work on Windows Vista. For this reason we encourage all of our customers to order a new CD with the most recent program(s) on it for a modest cost of $79.

We feel it would be wise to protect your software investment by ordering a a new CD that will work on your current and your next computer.

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