2.0203.2 Combustion Flue Gas—Orphaned Water Heaters

Topic: 
Combustion Safety
Subtopic: 
Vented Gas Appliances
Desired Outcome: 
Flue gasses successfully removed from the house
TitleSpecification(s)Objective(s)
2.0203.2a
Spillage testing

If spillage in a combustion appliance with a warm vent exceeds two minutes during pressure testing, specify measures to mitigate 

If spillage in a combustion appliance with a cold vent exceeds five minutes during pressure testing, specify measures to mitigate 

Detect excessive spillage of combustion gases 

2.0203.2b
Flue gas removal (chimney liner or approved methods)

A chimney liner will be installed in accordance with the IRC IRC International Residential Code or applicable NFPA NFPA National Fire Protection Association, www.nfpa.org standard

Allow water heater to vent properly

Prevent damage to the chimney

2.0203.2c
Retesting spillage

If a combustion appliance spillage exceeds two minutes during pressure testing, specify measures to mitigate

Ensure appliance is not spilling longer than two minutes with a warm vent

2.0203.2d
Required combustion air

The minimum required volume will be 50 cubic feet per 1,000 Btu BTU British thermal unit /h in accordance with IRC IRC International Residential Code and authority having jurisdiction.

Exception: Existing appliances that have passed combustion safety testing per BPI BPI Building Performance Institute, www.bpi.org 1200 are deemed to have sufficient combustion air.

Determine if existing conditions meet the combustion air calculation

2.0203.2e
Additional combustion air (if action is required)

Additional combustion air will be provided in accordance with IRC IRC International Residential Code or other authority having jurisdiction

Ensure adequate combustion air for operation of the appliance

TitleSpecification(s)Objective(s)
2.0203.2a
Spillage testing

If spillage in a combustion appliance with a warm vent exceeds two minutes during pressure testing, specify measures to mitigate 

If spillage in a combustion appliance with a cold vent exceeds five minutes during pressure testing, specify measures to mitigate 

Detect excessive spillage of combustion gases 

2.0203.2b
Flue gas removal (chimney liner or approved methods)

A chimney liner will be installed in accordance with the IRC IRC International Residential Code or applicable NFPA NFPA National Fire Protection Association, www.nfpa.org standard

Allow water heater to vent properly

Prevent damage to the chimney

2.0203.2c
Retesting spillage

If a combustion appliance spillage exceeds two minutes during pressure testing, specify measures to mitigate

Ensure appliance is not spilling longer than two minutes with a warm vent

2.0203.2d
Required combustion air

The minimum required volume will be 50 cubic feet per 1,000 Btu BTU British thermal unit /h in accordance with IRC IRC International Residential Code and authority having jurisdiction.

Exception: Existing appliances that have passed combustion safety testing per BPI BPI Building Performance Institute, www.bpi.org 1200 are deemed to have sufficient combustion air.

Determine if existing conditions meet the combustion air calculation

2.0203.2e
Additional combustion air (if action is required)

Additional combustion air will be provided in accordance with IRC IRC International Residential Code or other authority having jurisdiction

Ensure adequate combustion air for operation of the appliance