Muhlenberg, Kentucky HVAC Climate Zone

Muhlenberg is located in IECC Climate Zone 4A (Mixed - Humid). Get accurate Manual J load calculations with official design temperatures for Muhlenberg.

Climate Zone
4A
Winter Design
13°F
Summer Design
91°F
ZIP Codes
12

Muhlenberg HVAC Contractors: Get Your Free Manual J Report

Climate Zone 4A requires precise load calculations. Upload your Muhlenberg blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Muhlenberg's exact design temperatures (13°F winter / 91°F summer).

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Verify Your Muhlenberg ZIP Code

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

Muhlenberg covers 12 ZIP codes: 42321, 42323, 42324, 42325, 42326, 42330, 42332, 42337, 42339, 42344 and 2 more

Muhlenberg Design Temperatures

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

Winter 99% Design Temp
13°F
Summer 1% Design Temp
91°F
Summer Wet Bulb
75°F

IECC Requirements for Zone 4A

Minimum insulation and window requirements for Muhlenberg per IECC 2021.

Wall Insulation:R-20
Roof/Ceiling:R-49
Floor Insulation:R-19
Window U-Factor:0.32
Window SHGC:0.4

Energy Code: 2021 IECC

Recommended HVAC Equipment for Muhlenberg

Heating Systems

Gas furnace (90%+ AFUE)
Heat pump
Typical AFUE
92-96%

Cooling Systems

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

Get Free Manual J Calculations for Muhlenberg

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Muhlenberg design temps
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