Fair Conditioning Window Heat Gain Analysis – Fair Conditioning

Window Heat Gain Analysis


Architectural Design




Computer Application in Architecture

Academic Year

2'nd Year

Complexity Level


Content tags

Passive Cooling


Solar Geometry


Sustainable Building Design

Activity Type

Simulation Software

Activity duration

< 1 hour


To analyze the heat gain of the windows positioned in the design.


Students will be able to visualise the heat gain of the window for any date and time, as well as annual chart illustrating the heat gain each hour of the day, each month of the year.


Internet, Laptop


Fundamental knowledge about passive design and solar geometry.


Step 1: Open www.susdesign.com/windowheatgain

Step 2: In Location Tab- Enter Custom data (if your city is other than the list mentioned in dropdown) and enter latitude North or South.

Step 3: In Climate Tab- Enter 1 in Clearness.

Step 4: For Sunshine, you can derive values from Climate consultant using epw file and Sky cover range.

Step 5: In Ground Tab- Select the surface type from dropdown and ground reflectance will get reflected itself.

Step 6: In Window Tab- Select Window type to get SHGC (Solar Heat Gain Coefficient) added and then select orientation from dropdown.

Step 7: In Output Format Tab- Select Units as kWh/m2.

Step 8: Click on Calculate to get Output Chart. You can change the values to get favourable results.

Reference Image

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