Climate ZonesFloridaPolk

Polk, Florida HVAC Climate Zone

Polk is located in IECC Climate Zone 2A (Hot - Humid). Get accurate Manual J load calculations with official design temperatures for Polk.

Climate Zone
2A
Winter Design
32°F
Summer Design
95°F
ZIP Codes
30

Polk HVAC Contractors: Get Your Free Manual J Report

Climate Zone 2A requires precise load calculations. Upload your Polk blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Polk's exact design temperatures (32°F winter / 95°F summer).

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Verify Your Polk ZIP Code

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

Polk covers 30 ZIP codes: 33801, 33803, 33805, 33809, 33810, 33811, 33813, 33815, 33823, 33827 and 20 more

Polk Design Temperatures

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

Winter 99% Design Temp
32°F
Summer 1% Design Temp
95°F
Summer Wet Bulb
77°F

IECC Requirements for Zone 2A

Minimum insulation and window requirements for Polk per IECC 2021.

Wall Insulation:R-13
Roof/Ceiling:R-30
Floor Insulation:R-13
Window U-Factor:0.4
Window SHGC:0.25

Energy Code: 2021 IECC

Recommended HVAC Equipment for Polk

Heating Systems

Gas furnace
Heat pump
Electric resistance
Typical AFUE
80-92%

Cooling Systems

AC (14-16 SEER)
Heat pump
Typical SEER
14-16 SEER

Related Climate Zone Pages

Learn More About
Climate Zone 2A
View All Zones in
Florida
HVAC Permits for
Polk, Florida

Get Free Manual J Calculations for Polk

Upload your Polk blueprint and get a professional Manual J load calculation using official Zone 2A design temperatures. First report is FREE.

Polk design temps
Zone 2A compliant
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