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Gas piping, pipe sizing, pressure testing, shutoff valves, combustion air, venting, appliance location and the red tag. Every topic gets its own page: the drawing first, then what you need to remember. 69 illustrated pages.
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Every page has a big drawing and a box with the numbers, the rules and the code section you need to know:








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These are real pages from the book. The table of contents is the full one: 9 parts and 65 topics.
FG exam, code book open on the desk. The question shows a gas meter on a new house and asks where the piping the code covers actually starts. You've piped hundreds of houses, and right now you're not sure: the meter, the regulator or the service line?
The code book does answer it, but in definitions and paragraphs: point of delivery, service meter assembly, outlet of the final regulator. Separate definitions, pages apart, and none of them drawn.

In the book, that same topic is one page: the meter on one side, the appliance on the other, and the point of delivery marked where the code takes over. Natural gas at the meter outlet, LP-gas at the final regulator outlet, with the code section to look up at the bottom.
Then come the numbers that look alike: 3 psig, 6 feet, 18 inches, 50 cubic feet per 1,000 Btu/h. Read in paragraphs, they blur together by the next morning.
You see where the system starts, you know which section to open, and you answer without flipping back through the code book.

The exam and the code book, general regulations, gas piping, pipe sizing, testing and valves, combustion air, venting, specific appliances and field inspection: 69 pages, all illustrated
Think of it this way:
Exam question: a 100,000 Btu/h furnace, a run of pipe, a sizing table to read. The clock is running and you have about two minutes.
You've already seen that page, so you know the order: 100,000 Btu/h divided by about 1,000 Btu per cubic foot is 100 CFH. Then the longest length, then the row, then the column, straight in your code book.

Or on the job: a water heater in a 7 × 10 ft utility room with an 8 ft ceiling. That's 560 cubic feet, and the combustion air page shows the next step: openings to another room or to the outdoors.
Fuel Gas Inspector Illustrated is 9 parts and 65 topics, all drawn, with the 10 numbers to remember, a topic-to-section index and an exam day checklist at the end.
What you see drawn, you don't have to memorize.
How the open-book exam works, the IFGC chapter map, tabbing your code book, the 4-step method, Chapter 2 definitions and how the IFGC, IRC Chapter 24 and NFPA 54 fit together.
Listed appliances and manufacturer's instructions, rooms where appliances don't go, the 18-inch garage rule, attics, crawl spaces and rooftops, clearances, condensate and bonding of piping and CSST.
From point of delivery to appliance, approved materials, joints, prohibited locations, concealed piping and shield plates, underground depth and tracer wire, support intervals, sediment traps and connectors.
Read any sizing table in the same order: Btu/h to CFH, longest length, row, column. Plus picking the right table, the branch length method, the most frequent sizing mistakes, 2 psi and hybrid systems, CSST and LP.
The pressure test, test medium and what to isolate, purging, shutoff valves within 6 feet, other shutoffs, regulators and their vents, overpressure protection.
Sizing by room volume, indoor air, outdoor air with one or two openings, combination air, louvers and screens, mechanical combustion air and direct-vent.
Appliance categories I–IV, vent types, connector rise and slope, common venting, Category I vent tables, roof and through-wall terminations, masonry chimneys, draft hoods and barometric dampers.
Furnaces and boilers, water heaters, dryer exhaust, unvented room heaters, gas fireplaces, ranges and commercial kitchens, outdoor appliances and generators.
Permits, inspections and the red tag, the Appendix D check for existing appliances, the 10 numbers to remember, a topic-to-section index and the exam day checklist.
At the end of the book: The 10 numbers to remember, a topic-to-section index and an exam day checklist.

Practice questions in the style of the open-book exam, each answer with the code section where you find it, so you train your speed with the book, not just your memory.

The most frequent fuel gas mistakes drawn side by side, wrong and right, so you spot them on the exam and on the job site at a glance.
📄 This is a digital PDF book sent to your email: nothing is printed or shipped.
PDF by email: We email you Fuel Gas Inspector Illustrated as a PDF, together with the two free books. It's a single payment: no installments, no extra charges.
Each code topic on one page, with the section to find it, so an hour after work actually moves you forward.
The 4-step method and the topic-to-section index train you to find the right table fast in an open-book exam.
Print the pages you need and have the rule and the code section at hand when a contractor questions a red tag.
📄 This is a digital PDF book sent to your email: nothing is printed or shipped.
Try Fuel Gas Inspector Illustrated for 30 days, bonus books included.
We refund everything if the file won't open, if the book isn't what you see here, if you were charged twice or if the email doesn't arrive. Just email us.
You pay once. No subscriptions.
Yes. It doesn't teach you how to pipe a house: it shows each IFGC topic drawn and where to find it in the code book, which is what an open-book exam asks of you.
It's built on the International Fuel Gas Code, 2021 and 2024 editions, with IRC Chapter 24 and NFPA 54 as references. Where a section number or a requirement differs between the two editions, the page shows it. Check which edition your ICC exam bulletin lists and use that code book.
No. It's an independent study book, not published, endorsed or reviewed by the ICC. It doesn't give you a certificate or CEUs: the FG certification comes only from passing the ICC exam.
No. You still need the IFGC edition your exam uses, and that's the book you take into the exam: the testing center only allows the references listed in your ICC bulletin, so this PDF stays home. You study with it before, so on exam day you know which chapter, table and section to open.
No. They're written for this book, in the style of an open-book exam, with the code section where you find each answer.
As a PDF by email, at the address you enter at checkout. The 2 bonus books come the same way.
No. It's a one-time payment, with no subscription.
Yes. The PDF is ready to print: print the whole book or just the pages you want to take to the job site.
You have 30 days. We refund everything if the file won't open, if the book isn't what you see on this page, if you were charged twice or if the email doesn't arrive: just email us.
No more rereading the code with nothing sticking.
Point of delivery, pipe sizing, combustion air: you see them drawn, and that's it.
You walk into the FG exam knowing where everything is.
Drawings make studying faster.
The book is right below.
One-time payment: US$ 27 · Guarantee: 30 days · PDF by email
YES, I WANT FUEL GAS INSPECTOR ILLUSTRATED FOR US$ 27📄 This is a digital PDF book sent to your email: nothing is printed or shipped.