Climate ZonesHawaiiKalawao

Kalawao, Hawaii HVAC Climate Zone

Kalawao is located in IECC Climate Zone 1A (Very Hot - Humid). Get accurate Manual J load calculations with official design temperatures for Kalawao.

Climate Zone
1A
Winter Design
44°F
Summer Design
94°F
ZIP Codes
1

Kalawao HVAC Contractors: Get Your Free Manual J Report

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Verify Your Kalawao ZIP Code

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Kalawao covers 1 ZIP codes: 96742

Kalawao Design Temperatures

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

Winter 99% Design Temp
44°F
Summer 1% Design Temp
94°F
Summer Wet Bulb
78°F

IECC Requirements for Zone 1A

Minimum insulation and window requirements for Kalawao 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 Kalawao

Heating Systems

Heat pump
Gas furnace (backup)
Electric resistance
Typical AFUE
80-90%

Cooling Systems

High-efficiency AC (16+ SEER)
Heat pump
Typical SEER
15-18 SEER

Related Climate Zone Pages

Learn More About
Climate Zone 1A
View All Zones in
Hawaii
HVAC Permits for
Kalawao, Hawaii

Get Free Manual J Calculations for Kalawao

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Kalawao design temps
Zone 1A compliant
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