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Old 09-01-2017, 08:40 AM   #1
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Wet water heater insulation on top?


I have an electric 30 gallon water from home depot Its only a few years old and possibly still under warrentee. I have decided to install a side arm on it to heat water off of my boiler. When I took off one of the plastic plugs on the top to attempt to remove a little injected foam to access an (inlet port?) I noticed the injected foam was wet. My water heater has no rust and has never had any evidence of leaking. Is this normal? no they just sweat some times and soak that foam? seems strange for a new water heater that's always worked well.
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Old 09-01-2017, 08:46 AM   #2
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Re: Wet water heater insulation on top?


No, look for leaks around pipe connections, both hot and cold.
Investigate warranty, could be tank leak.
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Old 09-01-2017, 08:52 AM   #3
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Re: Wet water heater insulation on top?


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No, look for leaks around pipe connections, both hot and cold.
OK i will tonight, I connected the water heater with pex when i installed it and never had any problems, I also did not see an obvious sighns of leaking at the connections,

Can I also just T off the preasure releif valve to run the top part of the side arm into the tank? that way I do not need to remove any plugs? The closed cell foam seemed not as well made as spray foam and broke a way easily and kind of soggy. Do you think once I identify the connection leak it will dry its self out?
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Old 09-01-2017, 09:14 AM   #4
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Re: Wet water heater insulation on top?


I also want to add, it has never had a puddle under it or leaked, or exibited any sighns of trouble?
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Old 09-01-2017, 02:00 PM   #5
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Re: Wet water heater insulation on top?


It will not be condensation, that happens when warm moist air contacts a cold surface.
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Old 09-01-2017, 04:25 PM   #6
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Re: Wet water heater insulation on top?


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Can I also just T off the preasure releif valve to run the top part of the side arm into the tank? that way I do not need to remove any plugs?
How do you propose to do that and still have a functional TPR valve?
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