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Upgrade nowFlue Temperature, Condensation & Termination
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
Learn how flue gas temperature and condensation influence thermal updraught, and explore statutory termination heights and clearance rules to ensure safe discharge under BS 5440-1.
Learning Objectives
Explain the relationship between flue gas temperature, condensation, and the loss of updraught.
Identify the minimum flue discharge velocity and free area requirements for natural draught terminals.
Determine compliant flue termination heights across pitched and flat roofs in accordance with BS 5440-1.
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