Pass the NATE Certification (HVACR) Exam.

Reviewed for accuracy · August 2026

We're building NATE HVAC Certification Exam Prep — 1,000+ practice questions for the NATE HVACR certification exam (North American Technician Excellence), plus a built-in Refrigeration Cycle Reference. Join the waitlist and be first to know when it launches.

Free to download when it launches · No spam ever

❄️

NATE HVAC Certification Exam Prep

Launching soon on iPhone & iPad

1,000+

Practice Questions

Topics Covered

Free

To Start

Offline

No Wi-Fi Needed

NATE certification exam at a glance

NATE certification for HVACR technicians usually means passing two proctored exams: a 50-question Core exam and a 100-question Specialty exam (such as air conditioning or gas heating). You need 70% on each — 35 of 50 on Core and 70 of 100 on an installation or service specialty.

Core exam	50 questions · 35 correct (70%) to pass
Specialty exam	100 questions · 70 correct (70%) to pass for installation/service
Senior level	75% to pass
Recommended experience	1 year for installation, 2 years for service, 5 years for senior-level exams
Delivery	Proctored by a NATE testing organization; some exams by live online proctor
Certification lasts	2 years

NATE says exam times vary by exam and pricing varies by testing organization, so we don't state a single time limit or fee. Core and Specialty question counts are from NATE's Traditional Pathway page.

Source: NATE — Frequently Asked Questions · checked 2026-10-16

What's Covered

✓Refrigeration cycle — compression, condensation, expansion, evaporation

✓Pressure-temperature relationships

✓Electrical circuits & controls

✓Air distribution & duct systems

✓Heating systems — gas, oil, heat pump

✓Troubleshooting & diagnostic procedures

✓Refrigerant handling & EPA 608 overlap

✓NATE specialty areas — AC, heating, heat pumps

App Features

🧠1,000+ NATE Certification (HVACR) practice questions with full answer explanations

🔧Built-in Refrigeration Cycle Reference — the killer tool for exam math scenarios

📊Progress tracking by topic — know exactly where you stand

🔁Missed question review — study your weak spots automatically

✈️Full offline access — study anywhere, no Wi-Fi required

📱iPhone and iPad — optimized for mobile studying

Get the Cheat Sheet

Download your free NATE Certification (HVACR) study guide PDF — key formulas, reference tables, and exam topics.

Download Free Study Guide →

Frequently Asked Questions

What is the NATE certification?

NATE (North American Technician Excellence) certifies HVACR technicians. On the traditional pathway you pass a 50-question Core exam plus a 100-question Specialty exam in an area like air conditioning, gas heating, air-to-air heat pumps, or air distribution. NATE certification lasts two years, and you track continuing education hours to recertify.

How hard is the NATE exam?

NATE does not publish pass rates on its FAQ. You need 70% to pass the Core exam (35 of 50) and installation or service specialty exams (70 of 100); senior-level exams require 75%. NATE recommends 1 year of field experience for installation tests, 2 years for service tests, and 5 years for senior-level tests.

Do I need EPA 608 before taking NATE?

EPA 608 certification is a separate federal requirement for handling refrigerants and is not a prerequisite for NATE certification. However, the NATE air conditioning and heat pump exams overlap heavily with EPA 608 content (refrigerant handling, pressure-temperature relationships, recovery procedures). Most technicians pursue EPA 608 before or alongside NATE certification.

Be First to Know

Launching Soon on iPhone

Join the waitlist and get notified the moment NATE HVAC Certification Exam Prep goes live on the App Store.

Studying with VoltAI

Stuck on a NATE HVAC question? Ask VoltAI why.

VoltAI is a built-in AI tutor that explains every answer in plain language — citing the actual code, protocol, or standard — and answers your follow-ups until it clicks. Static apps tell you the right letter; VoltAI teaches the reasoning the exam tests, so you pass by understanding, not memorizing.

Try VoltAI free →