Flue pipe clearance

Originally Posted By: nlewis
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Does anybody know if there is a requirement for a separation from flue pipes and natural gas lines. Today I saw single wall heating and water heater flue pipes within four inches of black iron gas lines and the gas meter.


I have never heard of a required separation and have never run across this before. Thanks.


Originally Posted By: Randy Lilly
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The vents only need clearances to combustible items (i.e. 6" for single wall vent and 1" for double wall), however local gas utilities do require clearances from their meters. Check with them.


Randy Lilly



Home Assurance Home Inspections


Knoxville, TN