Idaho HVAC Load Calculation Guide

Free HVAC load calculation guide for Idaho. Review climate zones, design temperatures, building code context, and local calculator resources for Boise, Meridian, Nampaand 1 more cities.

Start with the Free Idaho Load Calculator

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

Idaho Design Temperatures

Winter Design Temperature

-10°F

Used for heating load calculations and equipment sizing across Idaho

Summer Design Temperature

96°F

Used for cooling load calculations and equipment sizing across Idaho

Climate Zone Information

Idaho spans climate zones Zone 4B, Zone 5B, Zone 6B, which means different regions may have varying design requirements. Always verify local design temperatures for your specific project location.

Idaho Building Codes & Requirements

HVAC Requirements

  • High-efficiency heating
  • Air sealing requirements
  • Ventilation standards

Note: Focus on heating efficiency due to cold winters

Energy Code

2015 IECC with amendments

Common Building Types

  • Ranch-style homes
  • Log construction
  • Agricultural buildings

Idaho HVAC Challenges

Cold winters

Dry climate

Large temperature swings

Rural installations

Major Cities in Idaho

Boise
96°F max
Meridian
95°F max
Nampa
95°F max
Idaho Falls
88°F max

Quick Facts

State:Idaho
Abbreviation:ID
Climate Zones:Zone 4B, Zone 5B, Zone 6B
Major Cities:4

Local Resources

Idaho Power

utility

Visit Website →

Idaho Office of Energy Resources

government

Idaho HVAC Contractors

organization