Climate ZonesVermontFranklin

Franklin, Vermont HVAC Climate Zone

Franklin is located in IECC Climate Zone 6A (Cold - Humid). Get accurate Manual J load calculations with official design temperatures for Franklin.

Climate Zone
6A
Winter Design
-9°F
Summer Design
89°F
ZIP Codes
13

Franklin HVAC Contractors: Get Your Free Manual J Report

Climate Zone 6A requires precise load calculations. Upload your Franklin blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Franklin's exact design temperatures (-9°F winter / 89°F summer).

Claim Free Report
No credit card required

Verify Your Franklin ZIP Code

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

Franklin covers 13 ZIP codes: 05441, 05444, 05448, 05450, 05454, 05455, 05457, 05459, 05471, 05476 and 3 more

Franklin Design Temperatures

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

Winter 99% Design Temp
-9°F
Summer 1% Design Temp
89°F
Summer Wet Bulb
73°F

IECC Requirements for Zone 6A

Minimum insulation and window requirements for Franklin per IECC 2021.

Wall Insulation:R-20
Roof/Ceiling:R-49
Floor Insulation:R-30
Window U-Factor:0.3
Window SHGC:0.4

Energy Code: 2021 IECC

Recommended HVAC Equipment for Franklin

Heating Systems

Gas furnace (96%+ AFUE)
Boiler
Cold climate heat pump
Typical AFUE
96-98%

Cooling Systems

AC (13-15 SEER)
Typical SEER
13-15 SEER

Related Climate Zone Pages

Learn More About
Climate Zone 6A
View All Zones in
Vermont
HVAC Permits for
Franklin, Vermont

Get Free Manual J Calculations for Franklin

Upload your Franklin blueprint and get a professional Manual J load calculation using official Zone 6A design temperatures. First report is FREE.

Franklin design temps
Zone 6A compliant
Ready in 60 seconds
Upload Blueprint → Get Free Report

Join 10,000+ Franklin contractors who trust AutoHVAC