5.3003.41 Combustion Appliance Venting System—Mid and High Rise

Topic:

Forced Air

Subtopic:

System Assessment and Maintenance

Desired Outcome:

Combustion products properly vented to the outdoors

For supporting material, see Referenced Standards.

Multifamily Homes

Title	Specification(s)	Objective(s)
5.3003.41a Combustion air	Combustion supply/exhaust air opening will be in compliance with applicable NFPA NFPA National Fire Protection Association, www.nfpa.org standard ( NFPA NFPA National Fire Protection Association, www.nfpa.org 31 or NFPA NFPA National Fire Protection Association, www.nfpa.org 54/ ANSI ANSI American National Standards Institute, www.ansi.org / AGA AGA American Gas Association, www.aga.org Z223.1) or applicable local code	Exhaust combustion products to the outdoors Ensure building is not damaged Protect workers and occupants from injury
5.3003.41b Flue vent material selection	Flue vent material will be selected to prevent flue gas freezing and/or corrosion (using double wall where necessary) Cost-effective materials will be used when appropriate and allowable	Ensure durability of flue vent system Ensure selected material is appropriate and cost-effective
5.3003.41c Installation	Venting systems will be installed considering proper material, pitch, common venting, chimney liner, clearance, total equivalent length, and termination in accordance with applicable code Category I venting systems will be installed in accordance with applicable code Category III and IV venting systems will be installed in accordance with manufacturer specifications Termination will be located away from windows, doors, and walkways Aesthetics and noise will be considered Venting will be routed in the shortest and most direct path possible Joints in the flue piping will be properly sealed to prevent flue gas and condensation leakage	Exhaust combustion products to the outdoors Ensure building is not damaged Protect workers and occupants from injury

Title

Specification(s)

Objective(s)

5.3003.41a
Combustion air

Combustion supply/exhaust air opening will be in compliance with applicable NFPA NFPA National Fire Protection Association, www.nfpa.org standard ( NFPA NFPA National Fire Protection Association, www.nfpa.org 31 or NFPA NFPA National Fire Protection Association, www.nfpa.org 54/ ANSI ANSI American National Standards Institute, www.ansi.org / AGA AGA American Gas Association, www.aga.org Z223.1) or applicable local code

Exhaust combustion products to the outdoors

Ensure building is not damaged

Protect workers and occupants from injury

5.3003.41b
Flue vent material selection

Flue vent material will be selected to prevent flue gas freezing and/or corrosion (using double wall where necessary)

Cost-effective materials will be used when appropriate and allowable

Ensure durability of flue vent system

Ensure selected material is appropriate and cost-effective

5.3003.41c
Installation

Venting systems will be installed considering proper material, pitch, common venting, chimney liner, clearance, total equivalent length, and termination in accordance with applicable code

Category I venting systems will be installed in accordance with applicable code

Category III and IV venting systems will be installed in accordance with manufacturer specifications

Termination will be located away from windows, doors, and walkways

Aesthetics and noise will be considered

Venting will be routed in the shortest and most direct path possible

Joints in the flue piping will be properly sealed to prevent flue gas and condensation leakage

Exhaust combustion products to the outdoors

Ensure building is not damaged

Protect workers and occupants from injury