Focused revision for your domestic ACS reassessment — 430 exam-style questions across all five categories, each with a clear explanation, so you fix the gaps before assessment day.
Built for working gas engineers preparing for their domestic ACS reassessment — whether it's been a smooth five years or you want to shake off the rust before you sit it.
✓ You're due your CCN1 reassessment plus appliance categories.
✓ You want to know exactly where your weak spots are before the day.
✓ You'd rather revise on your phone between jobs than wade through folders.
✓ You want questions written to current UK standards, not dusty old notes.
430 questions across the five domestic categories, each with instant feedback and an explanation. Drill one topic at a time, or test yourself across a whole category.
Legislation and landlord duties, combustion, safety controls, tightness testing, gas rate, pipework, installation and ventilation.
229 questionsStandards and siting, stability and connection, ventilation by room volume, flame supervision and commissioning.
33 questionsBS 5871 appliance types, flue-flow and spillage testing, hearths and closure plates, clearances, ventilation and commissioning.
57 questionsBoiler types, sealed vs open-vented systems, condensate, flueing, boiler interlock and controls, commissioning and unvented hot water.
60 questionsBS 7967, analyser use and procedure, the CO/CO₂ ratio, interpreting results, the calculations and what to do when out of limits.
51 questions234 flip-cards tagged to each category, and a searchable A–Z of the tricky terms, acronyms and standards across the gas course.
234 cards + glossarySign up in under a minute — with your email or with Google.
£29.99 gives you 60 days' full access to every question, flashcard and tool.
Drill your weak categories, clear your misses, and walk in confident.
Buy just this course, or unlock the whole short-course library for a year — including everything as it's added.
Sixty days from the moment you buy — plenty of time to prepare, revisit and reassess.
All five domestic categories: CCN1 core gas safety, CKR1 cookers, HTR1 gas fires and space heaters, CENWAT1 boilers and water heaters, and CPA1 combustion performance analysis.
No. It's revision support to help you prepare and find your weak spots — it isn't a substitute for your ACS training or the assessment itself.
Just a phone, tablet or laptop and a web browser. Nothing to install.
Yes — the full suite is £59.99 for a whole year and includes every course, plus the new ones as they launch.
Create your account and unlock the gas course today — 60 days' full access for £29.99.
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