What Climate Zone is Auglaize, Ohio?

Auglaize is in IECC Climate Zone 5A (Cool - Humid). Get accurate Manual J load calculations with official design temperatures for Auglaize.

Climate Zone
5A
Winter Design
0°F
Summer Design
91°F
ZIP Codes
10

Auglaize, Ohio falls within IECC Climate Zone 5A (Cool - Humid), a heating-dominated region with humid moisture conditions. HVAC contractors working in Auglaize must use the official ASHRAE design temperatures of 0°F (99% winter) and 91°F (1% summer) when performing Manual J load calculations. These values represent the outdoor conditions your heating and cooling system must handle 99% and 1% of the year, respectively — ensuring proper equipment sizing without costly over- or under-sizing.

Because Zone 5A is heating-dominated, insulation levels are critical. Auglaize homes require a minimum of R-20 wall insulation, R-49 ceiling insulation, and windows with a U-factor of 0.3 or lower per the IECC 2021 energy code.

Auglaize Insulation Requirements (IECC 2021)

Minimum insulation R-values and window performance requirements for Climate Zone 5A in Auglaize, Ohio.

Building ComponentMinimum RequirementUnit
Ceiling / Attic InsulationR-49R-value
Wall InsulationR-20R-value
Floor InsulationR-30R-value
Window U-Factor0.3BTU/hr-ft²-°F
Window SHGC0.4Coefficient
Air Infiltration0.15ACH50

Auglaize HVAC Contractors: Get Your Free Manual J Report

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Verify Your Auglaize ZIP Code

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

Auglaize covers 10 ZIP codes: 45819, 45865, 45869, 45870, 45871, 45885, 45888, 45895, 45896, 45884

Auglaize Design Temperatures

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

Winter 99% Design Temp
0°F
Summer 1% Design Temp
91°F
Summer Wet Bulb
75°F

IECC Requirements for Zone 5A

Minimum insulation and window requirements for Auglaize 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 Auglaize

Heating Systems

Gas furnace (95%+ AFUE)
Boiler
Heat pump (cold climate)
Typical AFUE
95-98%

Cooling Systems

AC (13-16 SEER)
Heat pump
Typical SEER
13-16 SEER

Get Free Manual J Calculations for Auglaize

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