Minneapolis Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 6A (cold-humid). Minneapolis has one of the most extreme cold-weather climates of any major US metro — -16°F heating design with actual events regularly below -25°F. Heating load calculations are the critical Manual J output.

Energy Code & Manual J Requirement: Minnesota Energy Code (based on IECC 2012 with Minnesota amendments). ACCA Manual J required for residential HVAC permits across all Twin Cities metro jurisdictions.

Local Electric Utility: Xcel Energy

Building Department: City of Minneapolis Development Services Center

Local Trade Association: ACCA Minnesota Chapter / ASHRAE Minnesota Chapter / SMACNA Minnesota