Indiana HVAC Load Calculation

Professional HVAC load calculation requirements for Indiana. Get accurate heating and cooling load calculations with state-specific design temperatures, building codes, and local climate considerations for Indianapolis, Fort Wayne, Evansville and 1 more cities.

Quick Start Indiana Load Calculator

Get started with your Indiana HVAC load calculation using our professional tools designed for local climate conditions.

Indiana Design Temperatures

Winter Design Temperature

-2°F

Used for heating load calculations and equipment sizing across Indiana

Summer Design Temperature

91°F

Used for cooling load calculations and equipment sizing across Indiana

Climate Zone Information

Indiana spans climate zones 4A and 5A, which means different regions may have varying design requirements. Always verify local design temperatures for your specific project location.

Indiana Building Codes & Requirements

HVAC Requirements

  • Basic efficiency standards
  • Duct sealing recommended
  • Standard ventilation

Note: Rural areas may have less stringent enforcement

Energy Code

2012 IECC with amendments

Common Building Types

  • Traditional frame homes
  • Manufactured housing
  • Agricultural facilities

Indiana HVAC Challenges

Cold winters

Humid summers

Tornado activity

Agricultural environments

Major Cities in Indiana

Fort Wayne
87°F max
Evansville
91°F max
South Bend
86°F max

Quick Facts

State:Indiana
Abbreviation:IN
Climate Zones:4A, 5A
Major Cities:4

Local Resources

Duke Energy Indiana

utility

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Indiana Housing & Community Development

government

Indiana HVAC Association

organization