Alabama HVAC Load Calculation Guide
Free HVAC load calculation guide for Alabama. Review climate zones, design temperatures, building code context, and local calculator resources for Birmingham, Montgomery, Mobileand 1 more cities.
Start with the Free Alabama Load Calculator
Use our residential or commercial calculator to estimate loads with Alabama-relevant climate conditions in mind.
Alabama Design Temperatures
Winter Design Temperature
20°F
Used for heating load calculations and equipment sizing across Alabama
Summer Design Temperature
92°F
Used for cooling load calculations and equipment sizing across Alabama
Alabama Building Codes & Requirements
HVAC Requirements
- • Manual J calculations required
- • Duct leakage testing
- • Ventilation requirements per ASHRAE 62.2
Note: High moisture control requirements in coastal areas
Energy Code
2015 IECC with amendments
Common Building Types
- • Single-family homes
- • Mobile homes
- • Light commercial
Alabama HVAC Challenges
⚠
High humidity
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Severe weather events
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Mixed heating/cooling loads
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Termite protection
Major Cities in Alabama
Local Resources
Alabama Building Commission
government
Alabama HVAC Association
organization