Carmel Software
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http://www.carmelsoft.com | Carmel licenses and develops mobile and web-based building analysis soft
http://www.carmelsoft.com | Carmel licenses and develops mobile and web-based building analysis software for the building services industry.
08/13/2026
We've been updating all of our windows desktop applications including the following:
- ASHRAE 2025 climatic data
- HVAC duct design
https://handsdownsoftware.com/Software/Software_HDClimatic.aspx
https://www.handsdownsoftware.com/Software/Software_HDDuctDesigner.aspx
04/22/2026
We've updated our Residential Load Calc iPhone app for iOS 26:
03/27/2026
Our Manual J HVAC Residential Load Calcs HD app for the iPad now works with iOS 26.x
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Contact the business
Website
Address
1050 Northgate Drive Ste 360
San Rafael, CA
94903
Opening Hours
| Monday | 8am - 5pm |
| Tuesday | 8am - 5pm |
| Wednesday | 8am - 5pm |
| Thursday | 8am - 5pm |
| Friday | 8am - 5pm |