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9.2In preparation

How natural draught works

The stack effect, draught diverters and what affects the draught.

BS 5440-1

This topic supports

  1. M09.1Identify flue types and explain how natural-draught and fanned-draught flues work.

The lesson text for this topic is being written. The learning outcomes above, and any artefacts below, show what it will cover.

Interactive artefact

How an open flue works

An open-flued appliance cut away: the stack effect, the draught diverter, and spillage when the flue is blocked.

Will demonstrate

  • The stack effect drawing products up the flue
  • What the draught diverter does
  • What happens when the flue is blocked

Planned. This interactive will appear here when it's built.