Climate ZonesMinnesotaClay

Clay, Minnesota HVAC Climate Zone

Clay is located in IECC Climate Zone 7 (Very Cold). Get accurate Manual J load calculations with official design temperatures for Clay.

Climate Zone
7
Winter Design
-18°F
Summer Design
87°F
ZIP Codes
11

Clay HVAC Contractors: Get Your Free Manual J Report

Climate Zone 7 requires precise load calculations. Upload your Clay blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Clay's exact design temperatures (-18°F winter / 87°F summer).

Claim Free Report
No credit card required

Verify Your Clay ZIP Code

Enter your ZIP code to confirm it's in Clay and get climate zone details.

Clay covers 11 ZIP codes: 56514, 56525, 56529, 56536, 56546, 56547, 56549, 56552, 56560, 56580 and 1 more

Clay Design Temperatures

Official ASHRAE design temperatures for Clay, used for accurate Manual J load calculations.

Winter 99% Design Temp
-18°F
Summer 1% Design Temp
87°F
Summer Wet Bulb
70°F

IECC Requirements for Zone 7

Minimum insulation and window requirements for Clay per IECC 2021.

Wall Insulation:R-20
Roof/Ceiling:R-60
Floor Insulation:R-38
Window U-Factor:0.3
Window SHGC:0.45

Energy Code: 2020 IECC

Recommended HVAC Equipment for Clay

Heating Systems

Gas furnace (97%+ AFUE)
Boiler
Cold climate heat pump with backup
Typical AFUE
97-98.5%

Cooling Systems

AC (minimal, 13 SEER)
Typical SEER
13 SEER

Related Climate Zone Pages

Learn More About
Climate Zone 7
View All Zones in
Minnesota
HVAC Permits for
Clay, Minnesota

Get Free Manual J Calculations for Clay

Upload your Clay blueprint and get a professional Manual J load calculation using official Zone 7 design temperatures. First report is FREE.

Clay design temps
Zone 7 compliant
Ready in 60 seconds
Upload Blueprint → Get Free Report

Join 10,000+ Clay contractors who trust AutoHVAC