What is the difference between the hard copy and the instant download?

The content is exactly the same. If you order the download and wish to print it, you must print it yourself. We print and spiral bound the hard copy and mail it to you.

If I purchase the hard copy, can I also get the download for my laptop or pad?

Yes.  However, you must send us an email requesting the download. Be sure to include the name of the person who originally purchased the hard copy.

How long can I keep the course?

The course does not expire, You may keep it as long as you wish

How may pages is the course?

Approximately 110 pages.

How long should it take me to prepare for the exam using your course?

If you spend a couple hours per day, it should take about 2 weeks

How much math must I know?

Although load calculations, duct sizing and ventilation calculations sound intimidating, you will only need to know basic math; addition, subtraction, multiplication. You will also need to be able to calculate area and volume. Our course will teach you the basic hvac equations with plenty of examples.

What codes is the HVAC course based on?

International Mechanical Code and International Fuel Gas Code

How can I find out if my state has adopted the International Codes, or has based its codes on the International Codes?

46 states have adopted the International Mechanical Code. The only states that have not are; California, Hawaii, Maine, and Vermont

What is your passing rate?

This is the number one question we get and the hardest to answer, as it is difficult to get sufficient feedback from our students. The only thing we can document that indicates the quality of our course is the refund rate, as we offer a money back guarantee if you should not pass. Our refund rate for the past ten years has been about 3%. This does not mean 97% pass the exam. However, it does indicate the course is valuable enough that almost all examinees opt to keep the material.

If I should fail the exam, how do I get my money back?

If you purchased the download version, send us an email stating that you failed and want a refund. The refund is normally applied to your credit/debit account that same day. If you purchased the hard copy, you will need to send it back to us. A refund will be issued the day we receive the course. In either case, an email will be sent to you confirming the refund.

Can I get a refund if I do not feel the course is as advertised?


May I bring the course into the testing area?

Most likely, No

Our state is still using the 2009 codes. Will this course work for me?

Yes, as the changes to the codes from 2009 to 2018 are not significant enough to cause anyone to fail. Our course also attempts to point out any discrepancies between codes.  

Energy Marketing Service

374 Cattlelot Lane

Belhaven, NC 27810

252-943-1028 (9am-6pm ET, M-F, ET)


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