Unit Drawing
Curbside
Load Cal
Charts
Unit List
Home Address
View on Zillow
Use existing system size as override
Enter system override tonnage:
Square Footage
Year Built
Number of Stories
1
2
3+
Ceiling Height
8'
9'
10'
Vaulted
Mixed
Estimated Window Count:
Window Type / Install Year:
Original Windows
Newer Installed 1980–1989
Newer Installed 1990–1999
Newer Installed 2000–2009
Newer Installed 2010–2019
Newer Installed 2020+
Duct Location
Attic
Crawlspace
Basement
Conditioned Space
Number of Units
1 Unit
2 Units
3 Units
Prepared By
Calculate Load
Load Cal – © 2026 Randy Thomas