Pricing
Unlock every gas topic, micro lesson & exam-style question.
GasTheory helps UK gas students and engineers revise smarter with 19 structured topics, 826 micro lessons and 1,629 exam-style questions, plus a progress dashboard that shows exactly what to work on next.
19
Gas topics
826
Micro lessons
1,629
Questions
Explore free content first, then upgrade when you're ready.
Free
Try GasTheory & practise fundamentals
£0
no card required
- • Access to the first fundamental lesson
- • Regulations & Acts questions topic only
- • Modern quiz player with instant feedback
- • Basic progress from your recent quizzes
- • Works on mobile, tablet and desktop
Questions plan
All gas question sets, no lessons
£7.99
per month
No trial, cancel anytime.
- • Unlock all 19 gas question topics
- • Custom quiz lengths with instant feedback
- • Detailed results at the end of each quiz
- • Perfect if you already know the theory and just want drills
Lessons plan
All micro lessons, no question bank
£7.99
per month
No trial, cancel anytime.
- • Unlock all 826 bite-sized micro lessons
- • Structured in Tracks A & B for real UK gas training
- • Ideal for learning and refreshing theory in short sessions
- • Pair with your on-site training or college course
GasTheory Pro
Full lessons, all questions, detailed progress
£13.99
per month
3-day free trial on this plan only · no payment taken today · cancel anytime.
- • Unlock all 19 gas topics across Fundamentals (Track A) and Appliances (Track B)
- • Full access to 826 bite-sized micro lessons
- • Practice with 1,629 exam-style questions matched to your real training topics
- • Custom quiz lengths and instant results for every topic
- • Detailed progress dashboard showing accuracy, attempts and weak areas
- • Perfect for ACS prep and refreshers
Secure payments handled by Stripe. You can manage or cancel your plan anytime from your account.
What you get with GasTheory Pro
Structured micro lessons
826 short, focused micro lessons built around real UK gas topics: regulations, combustion, flues, ventilation, pipe sizing and more.
Powerful quiz engine
Custom quiz length, shuffled questions and options, instant feedback, explanations and a clean UI that feels like a proper exam tool rather than a basic Q&A page.
Progress & weak-area focus
See your scores by topic, track attempts over time and quickly spot where you need to spend more time before assessments.
Why micro lessons work for gas engineers
Gas work is tiring and most engineers don't want to read through 300-page books after a long day. GasTheory breaks everything into realistic chunks.
10–45 minutes each
Lessons are designed to fit into breaks, evenings or time between jobs so revision actually happens.
One topic at a time
Regulations, ventilation, tightness testing, meters, cookers, combis and more - each has its own micro lesson and matching question set.
Perfect for targeted revision
When your progress page shows a weak area, you can jump straight into that micro lesson and practise just that topic.
Frequently asked questions
Is GasTheory aligned with UK gas training?
Yes. Topics are based on the same fundamentals and appliance areas you'll see in real UK gas training and common course materials.
Do I get access on my phone as well?
Absolutely. GasTheory is built to work smoothly on mobile, tablet and desktop, so you can revise wherever you are.
What's the difference between free and Pro?
Free lets you try the platform with a smaller set of fundamentals lessons and questions. The Questions and Lessons plans unlock one side each, and GasTheory Pro unlocks everything plus deeper progress tracking.