replacing existing vent duct over hot water heater.


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Old 03-04-07, 07:32 AM
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Question replacing existing vent duct over hot water heater.

Hello, This is my first thread so hope everything goes ok. My question is, do I need to turn off my gas to my water tank or can I just change my 4" duct which ties into another duct which is about 8" ...don't know where its coming from but it goes out the roof. I assume it comes from my heater but not sure. Inspector said I needed double wall going from my water tank so this is why I'm changing it out. No major repairs just changing out double wall for single, just didn't know if I needed to turn gas off or what. Trying to be safe and not burn my house down. Please advise. Thank You
 
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Old 03-04-07, 08:53 AM
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Water heater

Originally Posted by TERRY REED
Hello, This is my first thread so hope everything goes ok. My question is, do I need to turn off my gas to my water tank or can I just change my 4" duct which ties into another duct which is about 8" ...don't know where its coming from but it goes out the roof. I assume it comes from my heater but not sure. Inspector said I needed double wall going from my water tank so this is why I'm changing it out. No major repairs just changing out double wall for single, just didn't know if I needed to turn gas off or what. Trying to be safe and not burn my house down. Please advise. Thank You
I assume you are talking about a water heater?, if so you can work on it by turning the control to pilot.

If the flue comming off the water heater is exposed you should be able to run single wall pipe,[this may be a local code issue].

As a safety issue you can't turn the heater back on until the new flue is installed, DO NOT RUN THE WATER HEATER WITHOUT A FLUE!

Best that I can do with your info. lots of luck

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