HVAC Permits in Idaho
Complete guide to HVAC permit requirements, energy code compliance, and building department information for contractors working in Idaho.
Idaho Energy Code Requirements
Understanding the energy efficiency standards that govern HVAC installations in Idaho
Current Energy Code
2021 IECC
Current Standard
Statewide energy efficiency requirements for HVAC systems, equipment, and building envelope performance.
Common Requirements
Important Note
Local jurisdictions may have additional requirements beyond the state energy code. Always verify specific compliance needs with your local building department.
HVAC Permits by City in Idaho
Boise
Zone 5BAda County • 16 ZIP codes
Idaho
Zone 5BIdaho County • 13 ZIP codes
Bonner
Zone 6BBonner County • 13 ZIP codes
Kootenai
Zone 5BKootenai County • 12 ZIP codes
Shoshone
Zone 5BShoshone County • 12 ZIP codes
Latah
Zone 5BLatah County • 11 ZIP codes
Bannock
Zone 6BBannock County • 10 ZIP codes
Lemhi
Zone 6BLemhi County • 9 ZIP codes
Bingham
Zone 6BBingham County • 8 ZIP codes
Bear Lake
Zone 6BBear Lake County • 8 ZIP codes
Bonneville
Zone 6BBonneville County • 8 ZIP codes
Twin Falls
Zone 5BTwin Falls County • 8 ZIP codes
Jefferson
Zone 6BJefferson County • 8 ZIP codes
Canyon
Zone 5BCanyon County • 8 ZIP codes
Blaine
Zone 6BBlaine County • 7 ZIP codes
Fremont
Zone 6BFremont County • 7 ZIP codes
Franklin
Zone 6BFranklin County • 6 ZIP codes
Cassia
Zone 5BCassia County • 6 ZIP codes
Clearwater
Zone 5BClearwater County • 6 ZIP codes
Elmore
Zone 5BElmore County • 6 ZIP codes
Benewah
Zone 5BBenewah County • 6 ZIP codes
Custer
Zone 6BCuster County • 5 ZIP codes
Nez Perce
Zone 5BNez Perce County • 5 ZIP codes
Owyhee
Zone 5BOwyhee County • 5 ZIP codes
Boundary
Zone 6BBoundary County • 5 ZIP codes
Gooding
Zone 5BGooding County • 4 ZIP codes
Teton
Zone 6BTeton County • 4 ZIP codes
Valley
Zone 6BValley County • 4 ZIP codes
Adams
Zone 6BAdams County • 4 ZIP codes
Nampa
Zone 5BCanyon County • 3 ZIP codes
Power
Zone 5BPower County • 3 ZIP codes
Butte
Zone 6BButte County • 3 ZIP codes
Caribou
Zone 6BCaribou County • 3 ZIP codes
Camas
Zone 6BCamas County • 3 ZIP codes
Lincoln
Zone 5BLincoln County • 3 ZIP codes
Jerome
Zone 5BJerome County • 3 ZIP codes
Minidoka
Zone 5BMinidoka County • 3 ZIP codes
Lewis
Zone 5BLewis County • 3 ZIP codes
Washington
Zone 5BWashington County • 3 ZIP codes
Gem
Zone 5BGem County • 3 ZIP codes
Payette
Zone 5BPayette County • 3 ZIP codes
Meridian
Zone 5BAda County • 2 ZIP codes
Oneida
Zone 6BOneida County • 2 ZIP codes
Clark
Zone 6BClark County • 2 ZIP codes
Madison
Zone 6BMadison County • 2 ZIP codes
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Frequently Asked Questions
Everything you need to know about HVAC permits and energy code compliance in Idaho
1What energy code does Idaho follow?
Idaho follows the 2021 IECC for energy efficiency requirements. This includes specific standards for HVAC equipment efficiency, duct design, and building envelope performance.
2Are Manual J calculations required in Idaho?
Most jurisdictions in Idaho require Manual J load calculations for proper HVAC system sizing. Our free load calculation tool can generate the professional reports you need for permits.
3How long does it take to get HVAC permits in Idaho?
Permit processing times vary by jurisdiction, typically ranging from 1-3 weeks. Having complete documentation including load calculations can speed up the process. Check with your local building department for specific timeframes.
4Do I need different permits for different types of HVAC work?
Yes, permit requirements vary based on the scope of work. New installations typically require mechanical permits, while simple repairs may not need permits. Replacements usually require permits if there are changes to the system capacity or ductwork.
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Need Climate Zone Data for Idaho?
Get official IECC climate zone information, design temperatures, and R-value requirements for accurate Manual J calculations in Idaho.
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