Caldwell Climate Zone & Energy Code
Climate Zone: IECC Climate Zone 5B (cold-dry). Heating design 5°F, cooling design 96°F/65°F.
Energy Code & Manual J Requirement: Idaho adopted IECC 2018 as the state energy code. ACCA Manual J is required for all HVAC permit applications in Canyon County.
Local Electric Utility: Idaho Power
Building Department: City of Caldwell Building Department
Local Trade Association: PHCC Idaho