Your complete path into HVAC
The full HVAC Technician course, A2L refrigerant handling, your printed certificate, and your EPA 608 exam registration. Everything you need to start, in one package.
One payment, or pay over time with Klarna or Afterpay, subject to approval.
- Secure payment
- Instant access
- Registered Florida company
- 407-634-7948
Try it free before you enroll
This practice is in Spanish, like the course.
This is how you learn at LTCF: virtual practices where you use the tools and solve real cases from the trade, right from your phone.
The interactive practices are part of the Spanish course: 31 in all: 19 HVAC, 7 for EPA 608 prep and 2 A2L. Try one free below.
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Everything below is included for $297
Four components you would normally buy separately, in one bundle.
Full HVAC Technician Course
From electrical controls and diagram reading to installation, diagnosis and repair, with EPA 608 exam preparation included. At your own pace, with no deadline to finish.
Safe Handling of A2L Flammable Refrigerants*
The new flammable refrigerants the industry is switching to. Training on the refrigerants the industry is moving to.
Printed certificate, mailed home*
Your certificate of completion on high-quality paper with a gold foil seal, shipped to your address within the United States.
EPA 608 exam registration*
The registration and processing fee for your EPA 608 certification exam, already covered. Official EPA 608 exam online, with a certifying organization directly approved by the EPA.
*The benefits of this combo (EPA 608 exam, A2L refrigerants course and printed certificate) apply to Combo HVAC Technician purchases at $297 made on or after September 10, 2026.
What you’ll learn, topic by topic
Tap each block to see the detail.
Ohm’s law, voltage, amperage and resistance. Series and parallel circuits. Reading ladder and pictorial diagrams. Contactors, relays, fuses and breakers. High and low pressure switches. Thermostats, subbase and heat anticipator.
Latent heat and sensible heat. Superheat and subcooling. Evaporator, suction line, and reciprocating, rotary, scroll, screw and centrifugal compressors. Condenser, liquid receiver, filter drier, cap tube and fixed orifice. TXV metering, oil separator, suction accumulator and sight glass.
Reading the P/T chart. High side and low side readings with the unit running. Vapor charging and liquid charging. Recovery in vapor, in liquid and in liquid/vapor. Nitrogen pressurization. Flushing the system and adding compressor oil.
Pulling moisture out of the system with a vacuum pump and a micron gauge. Deep vacuum and the standing vacuum test. Nitrogen regulator and nitrogen pressure test. Flowing nitrogen while brazing. Leak detection methods and instruments.
Recovery machines and recovery cylinders. Full recovery with the compressor running and with the compressor dead. The 80 percent rule. Disposable cylinders.
R-410A, R-22, R-32, R-454B, R-134a and R-290. Azeotropic, near-azeotropic and zeotropic blends. Glide, bubble point and dew point. POE, PAG, alkylbenzene and mineral oils.
ASHRAE 34 safety classification and flammability testing. Refrigerant concentration limits. Midpoint calculation in blends. Charging, recovery and evacuation of A2L. Brazing and leak testing with flammables. R-32 and R-454B, transport and job-site safety.
Core, Type I, Type II and Type III. The Clean Air Act and Section 608 (40 CFR Part 82). Venting prohibition, SNAP and leak repair. Required evacuation levels and exceptions. The AIM Act and A2L refrigerants. GWP and ODP. Practice tests and a final exam in the real format.
292 lessons across 26 modules.
Your EPA 608 certification exam, step by step
From start to finish with us: you don’t have to find a test site or pay the registration separately.
- Step 1 · Study
You prepare with us
Online and at your own pace, with four practice tests in the real exam format.
- Step 2 · Register
We coordinate your exam
We register you for your official EPA 608 exam online, with a certifying organization directly approved by the EPA. The first attempt is already included.
- Step 3 · Take the exam
You take the exam
If you don’t pass a section, you only retake that section, not the whole exam.
- Step 4 · Get certified
You receive your EPA 608 certification
Issued by an EPA-approved certifying organization. It is federal, valid nationwide and does not expire.
We coordinate the process with you from start to finish.
If you bought each piece separately…
The same, bought piece by piece, would cost almost three times more.
| Price if bought separately | |
|---|---|
| Full HVAC Technician Course | $589.00 |
| Safe Handling of A2L Flammable Refrigerants | $249.00 |
| Printed certificate and postal shipping | $64.99 |
| EPA 608 exam registration and processing | $59.99 |
| Total value | $962.98 |
One payment, or pay over time with Klarna or Afterpay, subject to approval.
Your certificate, on paper and at your door
When you finish the course you receive a private certificate of completion, printed and mailed to your address. Shipping is already included in the $297.
Your first official EPA 608 exam attempt is also included. You take your official EPA 608 exam online, from home, in Spanish or English, monitored live by a certifying organization directly approved by the EPA. Once you pass, you earn your federal EPA 608 certification: valid nationwide and it never expires. We handle your registration from start to finish.
A look inside the course
What you will see in your lessons: animations, illustrations and wiring diagrams in full color.
Study the way that works for you
Frequently asked questions
Our certificate is a private certificate of completion, not a state license. To buy and handle refrigerants, federal law requires EPA 608 certification, and the bundle includes your exam registration. The HVAC contractor license in Florida is granted by the state and is a separate process.
You only retake the section you didn’t pass, not the whole exam. Your first EPA 608 exam attempt is included in the $297. You only pay $59.99 if you need to retake it.
100% online, at your own pace, with no schedule. You start as soon as you enroll and you can study from your phone.
You pay here on the page with a debit or credit card, Apple Pay or Google Pay. LTCF charges no monthly fees, just a one-time payment; if you prefer, at checkout you can choose to pay over time, subject to approval.
7-day guarantee: you can request a 100% refund of your purchase within 7 days of the purchase date, unless you have already downloaded a certificate or your EPA 608 exam has already been registered. We refund you through the same payment method. The only thing not refunded is your EPA 608 exam registration, once it has been made. See section 4.5 of our Terms and Conditions
Start today, at your own pace.
One payment, or pay over time with Klarna or Afterpay, subject to approval.
7-day guarantee: you can request a 100% refund of your purchase within 7 days of the purchase date, unless you have already downloaded a certificate or your EPA 608 exam has already been registered. We refund you through the same payment method. The only thing not refunded is your EPA 608 exam registration, once it has been made. See section 4.5 of our Terms and Conditions
Learning Trade Center of Florida programs are training programs and award a private certificate of completion. They are not a state license or a government certification. LTCF is not the certifying organization: we prepare you for the exam and coordinate your registration. The exam is administered and certified by an EPA-approved Section 608 certifying organization. For more information about the EPA-approved certifying organization, contact us. HVAC contractor licensing in Florida is granted by the State and has its own experience and examination requirements.