Energy Marketing Service

“So easy, your dog could pass!”

HVAC Licensing

Exam Prep

The“Guide to Passing the HVAC Licensing Exam” will have you prepared to take the exam for less than one half the cost of a classroom cram course. Learn the Mechanical Code, the Fuel Gas Code, plus, Business and Law, Manuals J, D and N.

This copyrighted HVAC licensing exam prep course teaches and explains the provisions of the Mechanical Code, Fuel Gas Code. Manuals J and N load calculations, Manual D duct design and business principles.  it is designed to assist you in understanding the tough stuff; the stuff many examinees struggle with on the exam.


✔  Mechanical Code– What to highlight and how to calculate ventilation and combustion air requirements, hood sizes and return air ducts, plus more

          updated through 2020

  Fuel Gas Code– What to highlight.  Determining confined spaces, gas pipe sizes, vent sizes and clearances, plus more

✔  Manual J, 8th edition- We have reduced this manual from 627 pages to just 11 pages as an easy to understand procedure for calculating loads .  Basic principles of heat transfer and thermodynamics.  Operating cost calculations

✔  Manual D– “Three easy steps to duct sizing.”

✔  Manual N– Once you get through Manual J, N will be a cakewalk.

✔  Symbols and Psychrometrics – How to read and use charts and calculate A/C capacity

✔  Business- Learn business equations and accounting principles.  Find out how to figure profit the correct way.

✔  Energy Code– What you need to know to pass.

✔  150 Strategic Practice Questions– With answers and how we got’em

Don’t just take our word.

Click below to to sample the course yourself

Don’t know where to begin?

Our course will guide you right through.

Our course is based on the International Codes. Most states have adopted the International Codes, although they may bare the name of a state, such as New York State Mechanical Code or North Carolina Mechanical Code.

Typical exam questions

1.   Where the minimum size combustion air duct is 6” X 12”, a metal lover with unknown free area, must be at least _______ square inches

2.  Calculate the required outdoor ventilation rate for a 1700 sq. ft. office space?

3.  When installing B-vent for a 120,000 BTUH gas furnace (fan assisted), what is the minimum diameter if the vent is 12 feet high with a 2 foot lateral?

4.  Calculate the velocity (FPM) of 800 CFM in an 8″ x 14″ duct.

5.  If R-19 insulation is added to a 1200 square foot ceiling with a U-value of .05, what is the new R-value? New U-value? Heat loss at 50 degree temperature difference?

6.  If you purchase an appliance for $1000 and wish to make 30% profit; what would your selling price be? Hint: the answer is not $130

States colored in pink have adopted the International Mechanical and Fuel Gas Codes. Our course will definitely help you.


1. 96

2. 144.5 cfm

3. 5”

4. 1039 fpm

5. R=39, U=.025, 1500 btuh

6.  $1428.57

Think about it!

After spending hours in a cram course, listening to an instructor rushing through the provisions of all the code books, plus teaching you how to perform load calculations and size ducts, vents and piping and then covering business and accounting principles, the average attendee will come out of the class with one question on his mind; “What did he say?”

Most of us have been there before.
The Guide is simply the best way to go.


We make learning easy.

Once you’ve read our sections on Manual J (load calculations) and Manual D (duct design) you’ll be looking for a butt kicking machine for not ordering our course earlier. There is simply no easier method for fully understanding these manuals. For example, the Guide condenses Manual J from 627 pages down to 11 pages; Now, that’s making it easy

Because many states are now adding business questions to their HVAC exams, we have included a section on business practices and math. It is written in a language, we in the trade understand.  You no longer have to have the skills of a Philadelphia lawyer, mathematician and a CPA to help prepare for the exam. 


Single appliance -Table 504.2(1) Sizing vents

What size B vent is needed for a 160,000 BTUH, naturally ventilated appliance if the total vent height is 18’ and the lateral 2’?

Under the height column you have to choose either 15’ or 20’. Remember this: The taller the vent the more capacity it has, therefore, if the 20’ row is used the vent may be under sized. Always use the shorter height.
In this case use 15’. Now use the 2’ lateral and select a vent size under NAT.  A 5” vent will handle only 150,000 BTUH, while a 6” vent will handle 225,000 BTUH, therefore select a 6” vent.

See? You already learned something!

Pricing and ordering information.

No need to wait for the mailman

The “Guide to Passing the HVAC Exam”  May be instantly downloaded to your computer as soon as your payment is verified.

All credit or debit cards are accepted.

Need the course now?

Don’t wait for the mailman, Order the Instant download and get it now. There is no time limit; Keep and study this course as long as you wish.

As soon as your payment is verified, you will receive download instructions on your computer screen. You may save the course to your computer or print it out (Approx. 140 pages). Your payment will be processed by our trusted partner, Clickbank*

Instant Download

 Only $147

*ClickBank is the retailer of products on this site. CLICKBANK® is a registered trademark of Click Sales, Inc., a Delaware corporation located at 1444 S. Entertainment Ave., Suite 410 Boise, ID 83709, USA and used by permission. ClickBank’s role as retailer does not constitute an endorsement, approval or review of these products or any claim, statement or opinion used in promotion of these products.*



Have questions ?

Contact us anytime by email

252-943-1028 (M-F, 9am – 6pm,



Select a state below to go to the respective HVAC licensing board






 Colorado x





 Hawaii x


 Illinois x

 Indiana x


 Kansas x



 Maine x






 Missouri x




 New Hampshire x

 New Jersey

 New Mexico

 New York (Local)

 North Carolina

 North Dakota




 Pennsylvania x

 Rhode Island

 South Carolina

 South Dakota x




 Vermont x



 West Virginia




Back to “Guide to Passing the HVAC Exam”Back to “Guide to Passing the HVAC Exam

HVAC licensing exam prep course

“Guide to Passing the HVAC Licensing Exam”

Hit Counter

Close Menu