Climate ZonesMaineAroostook

Aroostook, Maine HVAC Climate Zone

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

Climate Zone
7
Winter Design
-18°F
Summer Design
87°F
ZIP Codes
36

Aroostook HVAC Contractors: Get Your Free Manual J Report

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

Claim Free Report
No credit card required

Verify Your Aroostook ZIP Code

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

Aroostook covers 36 ZIP codes: 04471, 04497, 04730, 04732, 04733, 04735, 04736, 04739, 04740, 04742 and 26 more

Aroostook Design Temperatures

Official ASHRAE design temperatures for Aroostook, 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 Aroostook 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: 2021 IECC

Recommended HVAC Equipment for Aroostook

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
Maine
HVAC Permits for
Aroostook, Maine

Get Free Manual J Calculations for Aroostook

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

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

Join 10,000+ Aroostook contractors who trust AutoHVAC