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Upgrade nowComplete & Incomplete Combustion
Read through the material below, then test your understanding.
Module Lessons
Domestic Fuel Systems, Combustion & Flues
Fuel Properties: Gas, LPG & Solid Fuel
Fuel Properties: Oil & Low-Carbon Alternatives
Storing Oil, Coal & LPG
Storing Biomass & General Fuel Storage
Fuel Delivery & Distribution
Complete & Incomplete Combustion
Carbon Monoxide Poisoning
Combustion & Ventilation Air Requirements
Ventilation Categories & Calculations
Ventilation for Open-Flued & Room-Sealed Appliances
Flueless Appliance Ventilation Calculations
Types of Chimney & Flue Systems
Open Flues & Flexible Liners
Flue Terminals & Builder's Openings
Terminal Guards, Flue Blocks & Ridge Terminals
Room-Sealed (Balanced) Flues
Effective Height & Flue Routing
Flue Temperature, Condensation & Termination
Class 1 & Class 2 Flue Construction
Rigid & Flexible Metallic Flue Systems
Flue Testing Procedures
Flue Gas Analysis
Lesson Overview
Understanding the principles of complete and incomplete combustion is essential for diagnosing gas burner faults, preventing hazardous soot build-up, and protecting building occupants from fatal carbon monoxide poisoning.
Learning Objectives
Compare the chemical equations and products of complete versus incomplete combustion.
Identify burner flame characteristics including pre-aerated, post-aerated, and carburising flames.
Recognise the four primary causes and physical indicators of incomplete combustion in appliances.
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