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Upgrade nowCombustion & Ventilation Air Requirements
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
Combustion and ventilation air requirements ensure fossil fuel appliances receive adequate oxygen for safe, complete combustion while preventing flue spillage and appliance overheating.
Learning Objectives
State the composition of atmospheric air and the air-to-gas ratio required for the complete combustion of natural gas.
Identify the core physical installation requirements, restrictions, and sizing rules for natural ventilation vents and grilles.
Explain the impact of mechanical extraction fans, passive stack systems, and radon precautions on combustion air supplies.
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