Adopts With Amendments
Chapter 8
Chimneys and Vents
International Mechanical Code 2021
[F] 801 General Venting Requirements
Section 801 — General Venting Requirements. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 801.1 Chimneys and Vents Scope
Section 801.1 — Chimneys and Vents Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] 801.1.1 Chimneys and Vents General
Section 801.1.1 — Chimneys and Vents General. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 801.18 Chimney and Vent Termination
Section 801.18 — Chimney and Vent Termination. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 801.2 Chimneys and Vents Scope
Section 801.2 — Chimneys and Vents Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] 801.2.1 Boiler Room Requirements
Section 801.2.1 — Boiler Room Requirements. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 801.3 Chimneys and Vents - Vent Types
Section 801.3 — Chimneys and Vents - Vent Types. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 801.3.1 Vent Types
Section 801.3.1 — Vent Types. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 801.4 Masonry Chimneys
Section 801.4 — Masonry Chimneys. This section specifies construction material requirements and standards. Refer to the official code for specific material specifications and testing standards. Refer to the official code text for complete requirements.
[F] 801.5 Factory-Built Chimneys
Section 801.5 — Factory-Built Chimneys. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 801.6 Chimney Termination Height
Section 801.6 — Chimney Termination Height. This section covers allowable building height, area, and number of stories based on construction type and occupancy. Refer to the official code text for complete requirements.
[F] 802 Vent Components
Section 802 — Vent Components. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 802.1 IMC Vent Types
Section 802.1 — IMC Vent Types. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 802.1.1 Masonry Chimneys
Section 802.1.1 — Masonry Chimneys. This section specifies construction material requirements and standards. Refer to the official code for specific material specifications and testing standards. Refer to the official code text for complete requirements.
[F] 802.2 Vent Categories
Section 802.2 — Vent Categories. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 802.2.1 Boiler Pressure Relief
Section 802.2.1 — Boiler Pressure Relief. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 802.3 Chimney Termination
Section 802.3 — Chimney Termination. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 802.3.1 Chimney Clearance
Section 802.3.1 — Chimney Clearance. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 802.4 Vent Connector Slope
Section 802.4 — Vent Connector Slope. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 802.5 Unvented Appliances
Section 802.5 — Unvented Appliances. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 802.6 Connector Clearance
Section 802.6 — Connector Clearance. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 803 Chimney and Vent Connectors
Section 803 — Chimney and Vent Connectors. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 803.1 Chimneys - Connectors
Section 803.1 — Chimneys - Connectors. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 803.1.1 Gas Vent Termination
Section 803.1.1 — Gas Vent Termination. This section covers fuel gas piping and equipment requirements. Refer to the official code text for complete requirements.
[F] 803.2 Vent Height and Termination
Section 803.2 — Vent Height and Termination. This section covers allowable building height, area, and number of stories based on construction type and occupancy. Refer to the official code text for complete requirements.
[F] 803.2.1 Water Heater T&P Relief
Section 803.2.1 — Water Heater T&P Relief. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] 803.3 Chimney Lining
Section 803.3 — Chimney Lining. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 803.4 Vent Connector Slope
Section 803.4 — Vent Connector Slope. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 803.5 Vent Connector Clearances
Section 803.5 — Vent Connector Clearances. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 804.1 Type of Venting System Required
Section 804.1 — Type of Venting System Required. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 804.1.1 Expansion Tank Requirements
Section 804.1.1 — Expansion Tank Requirements. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 804.2 Type L Vents
Section 804.2 — Type L Vents. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 804.3 Type B Vent Termination
Section 804.3 — Type B Vent Termination. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 805.1 Vent Connectors
Section 805.1 — Vent Connectors. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 805.2 Type BW Vents
Section 805.2 — Type BW Vents. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 805.3 Type L Vents
Section 805.3 — Type L Vents. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 806.1 Mechanical Draft Systems
Section 806.1 — Mechanical Draft Systems. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 806.2 Forced Draft Venting
Section 806.2 — Forced Draft Venting. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 807.1 Clearances for Chimneys and Vents
Section 807.1 — Clearances for Chimneys and Vents. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 808.1 Vent Termination
Section 808.1 — Vent Termination. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
Code sections are sourced from the International Code Council (ICC) and NFPA. Refer to ICC Digital Codes or NFPA for the authoritative source documents.