Oregon spans 2 IECC climate zones. Find your exact zone, design temperatures, and get free Manual J load calculations for any Oregon location.
Mixed - Marine
Cool - Dry
Based on Climate Zone 4C (Mixed - Marine), here are typical HVAC equipment specifications for Oregon installations.
Annual Fuel Utilization Efficiency for Oregon furnaces
Seasonal Energy Efficiency Ratio for Oregon AC systems
Oregon's climate zone data ensures proper equipment sizing. No more callbacks from oversized or undersized systems.
Oregon building departments require IECC-compliant Manual J calculations. Our tool uses official Oregon climate data.
Right-sized systems based on Oregon climate data reduce energy costs for homeowners and improve your reputation.
Upload your Oregon blueprint and get a professional Manual J load calculation with official climate zone data. First report is FREE.
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Get detailed climate zone information for major cities
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