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  #1  
Old 10/23/11, 8:53 AM
Joseph Hagarty, CMI's Avatar
Joseph Hagarty, CMI Joseph Hagarty, CMI is offline
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Default Water Heater / CPVC
I know this is wrong.
Does anyone know the specific code requirement for not connecting CPVC directly to a gas water heater?
Thanks...
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  #2  
Old 10/23/11, 9:38 AM
Bruce M. Graham Bruce M. Graham is offline
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Default Re: Water Heater / CPVC
Most be a northern thing, works in florida


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  #3  
Old 10/23/11, 9:40 AM
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Default Re: Water Heater / CPVC
Quote:
On gas water heaters there
should be at least 6 inches of clearance between the
exhaust flue and any CPVC piping (photo K). Twelve inch
long metal nipples or appliance connectors should
be connected directly to the heater so that the CPVC
tubing cannot be damaged by the build-up of excessive
radiant heat from the flue.
http://www.nibco.com/assets/CPVCMAN2.pdf


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  #4  
Old 10/24/11, 9:49 AM
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Default Re: Water Heater / CPVC
1" clearance from b-vent by manufacturer. Michael nailed it best.


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  #5  
Old 10/24/11, 10:28 AM
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Default Re: Water Heater / CPVC
Quote:
Originally Posted by jfunderburk View Post
1" clearance from b-vent by manufacturer. Michael nailed it best.
True but the vast majority of water heaters are c vent which require 6" min. Plastic piping should not be connected to water heaters.


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  #6  
Old 10/24/11, 11:09 AM
Bruce M. Graham Bruce M. Graham is offline
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Default Re: Water Heater / CPVC
Good info to have, just never see it in the field, maybe I should send a copy to the local code inspectors


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  #7  
Old 10/24/11, 11:10 AM
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Default Re: Water Heater / CPVC
At least according to Ontario or Canada.


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