Colorado HVAC Load Calculation

Professional HVAC load calculation requirements for Colorado. Get accurate heating and cooling load calculations with state-specific design temperatures, building codes, and local climate considerations for Denver, Colorado Springs, Aurora and 1 more cities.

Quick Start Colorado Load Calculator

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

Colorado Design Temperatures

Winter Design Temperature

-15°F

Used for heating load calculations and equipment sizing across Colorado

Summer Design Temperature

91°F

Used for cooling load calculations and equipment sizing across Colorado

Climate Zone Information

Colorado spans climate zones 4B and 5B and 6B and 7, which means different regions may have varying design requirements. Always verify local design temperatures for your specific project location.

Colorado Building Codes & Requirements

HVAC Requirements

  • High-efficiency heating required
  • Altitude adjustments for equipment
  • Air sealing emphasis

Note: Equipment derating required for high altitude installations

Energy Code

2015 IECC with amendments

Common Building Types

  • Mountain homes
  • High-altitude construction
  • Ski lodges

Colorado HVAC Challenges

High altitude effects

Extreme temperature swings

UV exposure

Dry climate

Quick Facts

State:Colorado
Abbreviation:CO
Climate Zones:4B, 5B, 6B, 7
Major Cities:4

Local Resources

Xcel Energy

utility

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Colorado Energy Office

government

RMSPHCC Colorado

organization