Study tips, exam guides, and everything you need to know about F-Gas certification.
Understand what refrigerant is, how it changed from R12 to modern HFCs, and how it changes state around the AC circuit for your F-Gas 2079 exam.
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A plain-English walk through the four core components of the vapour-compression cycle: compressor, condenser, metering device and evaporator.
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A back-to-basics walkthrough of pressure, temperature, heat and the gas laws behind the refrigeration cycle — and why they transform your diagnostic skills.
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A walkthrough of the vapour-compression refrigeration cycle and the heat-transfer principles every F-Gas candidate needs for the City & Guilds 2079 exam.
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A technically accurate breakdown of the vapour-compression cycle — the four components, four processes, and COP/EER efficiency, for your F-Gas assessment.
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How the vapour-compression cycle moves heat through the compressor, condenser, metering device and evaporator, for the City & Guilds 2079 F-Gas assessment.
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A component-by-component walk through the vapour-compression refrigeration cycle, and why F-Gas technicians must understand it for the City & Guilds 2079 exam.
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Master the four core stages of the vapour-compression refrigeration cycle and learn how superheat, subcooling and saturation underpin safe F-Gas practice.
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A clear walkthrough of the basic vapour-compression refrigeration cycle, mapped to the knowledge you need for City & Guilds 2079 and day-to-day F-Gas work.
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A historical look at the EU F-Gas Regulation review, the IEC 60335-2-40 Edition 7 debates, and how that policy discussion fed into the 2024/573 framework.
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A historical guide to the original EU F-Gas phasedown under Regulation 517/2014 — how HFC quotas worked and what the 79% cut by 2030 meant under that regime.
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The original EU Regulation 517/2014 phase-down and leak-test changes explained — and why it still appears in legacy F-Gas training since 2024/573 replaced it.
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Effective F-Gas record-keeping is essential for compliance — how to manage systems, cylinders, and log entries to meet EU F-Gas Regulation requirements.
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A practical guide to the key pieces of equipment used in F-Gas refrigerant handling, from recovery machines and vacuum pumps to leak detectors and brazing sets.
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A complete guide to F-Gas training and certification — who needs it, what the qualification involves, and how to prepare for the City & Guilds 2079 assessment.
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A step-by-step look at an F-Gas practical training course — from fitting gauges and recovering refrigerant to pressure testing and system charging.
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Discover the most commonly tested topics in the F-Gas certification exam and focus your study time on what matters most.
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Understand the differences between F-Gas certification categories I, II, III and IV, and find out which qualification you need for your work.
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A June 2026 overview of EU Regulation 2024/573 — when it took effect, leak-check and record rules, product bans, and how it differs from the GB retained regime.
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Everything you need to know about passing the F-Gas certification exam, including study tips, exam format, and preparation strategies for HVAC technicians.
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