Chimneys and Vents

Chimneys and Vents

Chapter 18 IRC

M1801.1

Venting required

M1801.2

Draft requirements

M1801.3

Existing chimneys and vents

M1801.3.1

Size

M1801.3.2

Flue passageways

M1801.3.3

Cleanout requirements

M1801.3.4

Clearances

M1801.4

Space around lining

M1801.5

Mechanical draft systems

M1801.6

Direct vent appliances

M1801.7

Support

M1801.8

Duct Penetrations

M1801.9

Fire blocking

M1801.10

Un-used openings

M1801.11

Multiple appliance venting systems

M1801.12

Multiple solid fuel prohibited

Vent Components

M1802.1

Draft hoods

M1802.2

Vent Dampers

M1802.2.1

Manually operated vent dampers

M1802.2.2

Automatically operated dampers

M1802.3

Draft regulators

Chimney and Vent Connectors

M1803.2

Connectors for oil and solid fuel appliances

M1803.3

Installation

M1803.3.1

Floor, ceiling and wall penetrations

M1803.3.2

Length

M1803.3.3

Size

M1803.3.4

Clearance

M1803.3.5

Access

M1803.4

Connection to fireplace flue

M1803.4.1

Closure and accessibility

M1803.4.2

Connection to factory-built fireplace flue

M1803.4.3

Connection to masonry fireplace flue