⭐ Upgrade to Pro - £19
Unlock all lessons and mock exams to pass Level 2 + Level 3 theory exams.
Upgrade nowCentral Heating
Core principles, pipework layouts, and components used in domestic central heating systems.
Module Content
Follow the lessons in sequence and complete the quizzes after each lesson.
Introduction to Central Heating & Part L
Get Access with Pro
Heat Emitters: Radiators and Convectors
Get Access with Pro
Radiator Valves: TRVs and Lockshields
Get Access with Pro
System Layouts: One-Pipe and Two-Pipe
Get Access with Pro
System Layouts: Microbore and Manifold
Get Access with Pro
Boiler Types: Regular, System, and Combination
Get Access with Pro
Condensing Boiler Principles
Get Access with Pro
Open Vented Central Heating Systems
Get Access with Pro
Sealed Central Heating Systems
Get Access with Pro
Expansion Vessels and Pressure Relief
Get Access with Pro
Central Heating Pumps and Circulators
Get Access with Pro
System Controls: Programmers and Thermostats
Get Access with Pro
Motorised Valves: 2-Port and 3-Port
Get Access with Pro
Fully Pumped Systems: The Y-Plan
Get Access with Pro
Fully Pumped Systems: The S-Plan
Get Access with Pro
Filling, Venting, and System Balancing
Get Access with Pro
Water Treatment and System Protection
Get Access with Pro
Interactive City & Guilds Level 2 and Level 3 plumbing lessons, flashcards and mock exams, built for UK students and professionals.
© 2026 PlumbingIQ. All rights reserved.