chvac logoCommercial Load Calculation Software

Calculates heating and cooling loads for commercial applications, compliant with ASHRAE Standard 62.


The software:

  • Determines Building Tonnage and Room CFM Requirements, and Runout Duct Sizes
  • Calculates using either the CLTD method or the new RTS (Radiant Time Series) method.
  • Calculates Peak Heating and Cooling Loads
  • Allows 30 Walls, 30 Windows, and 12 Roofs per Roomchvac screen capture 2

This useful program comes in several sizes to suit your individual project needs, and several price levels to suit your budget.

Click here or on the picture for a brief overview of the program from our training DVD.

2 room – $295        10 room – $395

50 room – $595     100 room – $995

Unlimited -$1495

Purchase Options


Our training DVD – CHVAC 101 is a comprehensive step-by-step guide to using CHVAC. Click here for information. 

It’s the perfect way to start using the program quickly. Only $169.


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