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LoopCAD 2024

Detailed calculation methods and assumptions can be found in LoopCAD’s Help file.

CSA® F280-12 Residential Heating and Cooling Loads

LoopCAD and HeatCAD provide for easy, accurate and verified CSA F280-12 residential heating and cooling load calculations. The Professional and MJ8 Editions of these programs have been specifically designed and tested for the latest CSA F280-12 (R2021 Update 3) standard, and have been verified by HVAC Designers of Canada.Click here for the verified listing webpage.

CSA F280-12 Verified Seal
LoopCAD Heating and Cooling Software Logo
HeatCAD Heating and Cooling Software Logo

Users of the Professional and MJ8 Editions are strongly encouraged to purchase a copy of the CSA F280-12 standard to use in conjunction with the software. Visit for purchasing information.

The following highlights key features in the Professional and MJ8 Editions for both LoopCAD and HeatCAD. For a detailed comparison of features go to the LoopCAD Features page or the HeatCAD Features page

Heating Load Calculations
Residential heating loads are calculated according to the CSA F280-12 standard, including component properties, infiltration, mechanical ventilation, cold partitions and radiant floors.
Heating Load Calculations Screenshot Zoom in icon
Cooling Load Calculations
Full support for CSA F280-12 residential cooling loads including internal loads, infiltration and ventilation loads, automated orientation for maximum loads, and room CFM estimates.
Cooling Load Calculations Screenshot Zoom in icon
Infiltration Air Leakage Loads
Implementation of CSA F280-12 methods for infiltration loads based on shielding, building type and air tightness.
Infiltration Air Leakage Loads Zoom in icon
Clear and Concise Reports
HeatCAD and LoopCAD provide clear, easy to read reports to communicate your design work to clients, homeowners or inspectors. The available reports include:
  • CSA Load Summary
  • CSA Load Details
  • Heating System Summary
  • Annex D Summary
Clear and Concise Reports Screenshot Zoom in icon

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CSA and F280 are trademarks owned by, and CSA F280-12 is copyrighted by, the Canadian Standards Association. All rights reserved.