type b vent water heater clearence

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Originally Posted By: mrbpsdntx
This post was automatically imported from our archived forum.

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using type b vent pipe for the water heater vent, isn’t the clearence to combustibles suppost to be 1" (one inch) or more?? and single wall is 6 inches ??


if it is one inch for type b vent what is the code number??


thanks - Marc

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Originally Posted By: jpope
This post was automatically imported from our archived forum.

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The clearance requirement is per its listing (manufacturers recommendations). One inch is typical although some are listed at 1 1/2".


The code "reference" is IRC2427.6.1 or UMC815.3.2.6 depending on your jurisdiction.

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Jeff Pope
JPI Home Inspection Service
"At JPI, we'll help you look better"
(661) 212-0738

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Originally Posted By: mrbpsdntx
This post was automatically imported from our archived forum.

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Thanks Jeff


I do appreciate it 

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