Audio revision lessons built for working gas engineers. No desk, no textbooks, no wasted time. Revise in the van, on the tools, anywhere.
Textbooks in the van. Study after a 10-hour shift. It's not realistic — and it shouldn't have to be.
Long days on the tools leave little energy for textbook revision in the evenings. Life gets in the way.
Gas regulations read like legal documents. Most revision resources aren't built for how engineers actually learn.
The ACS matters for your career. Walking in underprepared is a real risk when revision doesn't fit your life.
Designed around how working engineers actually have time to learn. Simple, focused, effective.
Choose from 6 focused CCN1 modules — gas safety, tightness testing, combustion and more. Start exactly where you need to.
Drive to site, grab lunch, walk the dog — expert audio lessons work anywhere you are. No desk, no screen time needed.
Repeated audio builds genuine retention. Walk into your ACS assessment prepared, not hoping — knowing.
Every core ACS topic, broken into short audio lessons you can actually finish between jobs.
Regulations, RIDDOR, Gas Safe requirements
8 lessons →U-gauge, let-by, soundness procedures
7 lessons →CO, CO₂, flue gas analysis, efficiency
6 lessons →Sizing, materials, installation standards
7 lessons →Air supply, vents, flueless appliances
6 lessons →Gas escapes, RIDDOR, customer safety
5 lessons →Not a classroom product repackaged for mobile. Built from the ground up for how working engineers actually live.
Turn every drive to site into exam prep. Between jobs, first thing, last thing — it all adds up fast.
Hearing concepts explained clearly, multiple times, builds the kind of knowledge that holds up when it matters.
Each lesson is 8–12 minutes. Designed to be started and finished in one go. No chapters. No homework.
Written by engineers, for engineers. No academic language. No padding. Just what you need for the ACS.
No bullshit. No hidden fees. Just access to the revision that gets you through the ACS.
ACS Audio was created because traditional revision doesn't work for people with full-time jobs on the tools.
We know what it's like to face an ACS assessment with a busy diary and no energy left for textbooks in the evening. We built the revision resource we wished we'd had — practical, audio-first, and designed around how working engineers actually live.
Every lesson is written to be direct and genuinely useful. The kind of explanation a good mentor gives you in the van, not the kind you'd find in a regulation document.
Our goal is simple: help working gas engineers pass their ACS with confidence, whatever their schedule looks like.
Every lesson is built around what actually comes up in the ACS assessment. No filler, no fluff.
Content written and reviewed by experienced, registered gas engineers — not academics.
Built for your phone. Works in the van, on the go, wherever you are.
Every commute, every lunch, every spare 10 minutes. Your ACS assessment won't wait — and neither should you.
Free trial · Cancel any time · Full CCN1 coverage