Ohio HVAC Load Calculation Guide

Free HVAC load calculation guide for Ohio. Review climate zones, design temperatures, building code context, and local calculator resources for Columbus, Cleveland, Cincinnatiand 3 more cities.

Start with the Free Ohio Load Calculator

Use our residential or commercial calculator to estimate loads with Ohio-relevant climate conditions in mind.

Ohio Design Temperatures

Winter Design Temperature

0°F

Used for heating load calculations and equipment sizing across Ohio

Summer Design Temperature

89°F

Used for cooling load calculations and equipment sizing across Ohio

Climate Zone Information

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

Ohio Building Codes & Requirements

HVAC Requirements

  • Standard efficiency requirements
  • Duct testing recommended
  • Ventilation standards

Note: Some cities have additional green building incentives

Energy Code

2015 IECC with Ohio amendments

Common Building Types

  • Traditional homes
  • Industrial facilities
  • Commercial buildings

Ohio HVAC Challenges

Lake effect weather

Industrial environments

Variable climate

Urban heat islands

Major Cities in Ohio

Toledo
86°F max
Akron
86°F max
Dayton
87°F max

Quick Facts

State:Ohio
Abbreviation:OH
Climate Zones:Zone 4A, Zone 5A
Major Cities:6

Local Resources

AEP Ohio

utility

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Ohio Development Services Agency

government

Ohio HVAC Association

organization