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Chapter 8 — CHIMNEYS AND VENTS

802.11 Vent Connectors for Category II, Category III,

California Mechanical Code (Title 24, Part 4) · 2022 edition · updated 2026-09-10 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

and Category IV Appliances. The vent connectors for Category II, Category III, and Category IV appliances shall be in accordance with Section 802.4 through Section 802.4.3.

[NFPA 54:12.12]

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▸Contents — California Mechanical Code (Title 24, Part 4)
California Mechanical Code (Title 24, Part 4)
  1. Chapter 1 — GENERAL CODE PROVISIONS
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — GENERAL REGULATIONS
  4. Chapter 4 — VENTILATION AIR
  5. Chapter 5 — EXHAUST SYSTEMS
  6. Chapter 6 — DUCT SYSTEMS
  7. Chapter 7 — COMBUSTION AIR
  8. ▸Chapter 8 — CHIMNEYS AND VENTS
    Overview
    1. 801.1 Applicability. The requirements of this chapter shall
    2. 801.2 Venting of Gas Appliances. Low-heat and
    3. 801.3 Appliances Fueled by Other Fuels. Appliances
    4. 802.1 Listing. Type B and Type B-W gas vents shall comply with…
    5. 802.2 Connection to Venting Systems. Except as permitted in Se…
    6. 802.3 Minimum Safe Performance. Venting systems shall
    7. 802.4 Type of Venting System to be Used. The type of
    8. 802.5 Masonry, Metal, and Factory-Built Chimneys.
    9. 802.6 Gas Vents. The installation of gas vents shall meet
    10. 802.7 Single-Wall Metal Pipe. Single-wall metal pipe shall
    11. 802.8 Through-the-Wall Vent Termination. A mechanical draft ve…
    12. 802.9 Condensation Drain. Provision shall be made to
    13. 802.10 Vent Connectors for Category I Appliances.
    14. 802.11 Vent Connectors for Category II, Category III,
    15. 802.12 Draft Hoods and Draft Controls. Vented appliances shall…
    16. 802.13 Manually Operated Dampers. A manually operated damper s…
    17. 802.14 Obstructions. Devices that retard the flow of vent
    18. 802.15 Automatically Operated Vent Dampers. An
    19. 803.1 Single Appliance Vent Table 803.1.2(1) through
    20. 803.2 Multiple Appliance Vent Table 803.2(1) through
  9. Chapter 9 — INSTALLATION OF SPECIFIC APPLIANCES
  10. Chapter 10 — BOILERS AND PRESSURE VESSELS
  11. Chapter 11 — REFRIGERATION
  12. Chapter 12 — HYDRONICS
  13. Chapter 13 — FUEL GAS PIPING
  14. Chapter 14 — PROCESS PIPING
  15. Chapter 15 — SOLAR ENERGY SYSTEMS
  16. Chapter 16 — STATIONARY POWER PLANTS
  17. Chapter 17 — REFERENCED STANDARDS
  18. Appendix A — RESIDENTIAL PLAN EXAMINER REVIEW FORM FOR HVAC SY…
  19. Appendix B — PROCEDURES TO BE FOLLOWED TO PLACE GAS EQUIPMENT …
  20. Appendix C — INSTALLATION AND TESTING OF OIL (LIQUID) FUEL-FIR…
  21. Appendix D — FUEL SUPPLY: MANUFACTURED/MOBILE HOME PARKS AND R…
  22. Appendix E — SUSTAINABLE PRACTICES
  23. Appendix F — GEOTHERMAL ENERGY SYSTEMS
  24. Appendix G — SIZING OF VENTING SYSTEMS AND OUTDOOR COMBUSTION …
  25. Appendix H — EXAMPLE CALCULATION OF OUTDOOR AIR RATE

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