Chapter 8 governs how combustion products leave the building and how venting systems are selected, sized, and installed.
At a Glance
| Lens | Notes |
|---|---|
| Chapter focus | Chimneys and Vents |
| Why it matters | Chapter 8 governs how combustion products leave the building and how venting systems are selected, sized, and installed. |
| In the field | This chapter appears at connectors, vent penetrations, vent terminations, chimney relining work, direct-vent systems, and replacement equipment tied into existing vents. |
Core Fundamentals
- Safe venting depends on appliance type, vent category, material compatibility, and discharge conditions.
- A venting system that worked with old equipment may fail when the appliance changes.
- Support, clearances, connector routing, and termination details are frequent inspection points.