Chimneys and Vents ? Mechanical

Fuel-Burning Appliances Need an Approved Venting System

Does every gas furnace or water heater need a chimney or vent?

M1801.1

Masonry Chimneys Used for Appliances Must Be Suitable and Lined

Can I vent a gas water heater into an old masonry chimney?

M1801.3

Mechanical Vents Need Code-Compliant Roof Termination Height

How high does a furnace or water heater vent have to terminate above the roof?

M1804.2.6

Type B Vents Must Follow Listing Clearances

Can Type B vent pipe touch insulation or framing?

M1804.2

Vent Connectors Cannot Be Treated Like Listed Vents

Can single-wall vent pipe pass through a wall or ceiling?

M1803.3

Vent Connectors Need Required Clearance to Combustibles

How much clearance does a vent connector need from wood framing?

M1803.3.4

Vent Connectors Need Support and Proper Slope

How should a furnace vent connector be supported?

M1801.7

Vent Size Must Match the Appliance and Venting Tables

Can I reduce the vent size from my furnace or water heater?

M1801.3.1