New Water Heater Pounding Puffing Sound

 
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Old 12-22-2017, 05:25 PM   #1
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New Water Heater Pounding Puffing Sound


I just replaced my 50 gal Natural Gas water heater with pretty much the exact same unit. When I run water it is making a pounding/puffing noise coming from the water heater. Almost sounds like a train chugging along. What did I do wrong?
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Old 12-22-2017, 10:03 PM   #2
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Re: New Water Heater Pounding Puffing Sound


It will go away in a few days.

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Old 12-22-2017, 10:54 PM   #3
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Re: New Water Heater Pounding Puffing Sound


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It will go away in a few days.
Really so just use water as usual?
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Old 12-23-2017, 10:34 AM   #4
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Re: New Water Heater Pounding Puffing Sound


The knocking sound is quite loud. I noticed the copper hose is a little narrow in a spot because of the angle to screw it on the water heater. The new water heater is about an inch taller than the old one. Could that be the issue?
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Old 12-23-2017, 01:36 PM   #5
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Re: New Water Heater Pounding Puffing Sound


Did you reverse the hook ups? cold in the out port and vice versa? Missing "drop" pipe in cold port?

Over pressure, install gauge on draincock or line. Maybe needs a expansion tank if you have a anti back flow water service....

Last edited by Fouthgeneration; 12-23-2017 at 01:39 PM.
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Old 12-23-2017, 01:46 PM   #6
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Re: New Water Heater Pounding Puffing Sound


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Did you reverse the hook ups? cold in the out port and vice versa? Missing "drop" pipe in cold port?
No the hook ups are correct. Don't think I was supposed to put anything in cold port. Here is a picture of my not very good work. What do you think?
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Old 12-23-2017, 01:47 PM   #7
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Re: New Water Heater Pounding Puffing Sound


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Originally Posted by Fouthgeneration View Post
Did you reverse the hook ups? cold in the out port and vice versa? Missing "drop" pipe in cold port?

Over pressure, install gauge on draincock or line. Maybe needs a expansion tank if you have a anti back flow water service....
Another pic
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Old 12-23-2017, 01:49 PM   #8
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Re: New Water Heater Pounding Puffing Sound


I'm trying to reach an actual plumber I know to come take a look but may not be able to until after holiday so hoping I can get some help on here until then.
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Old 12-23-2017, 04:26 PM   #9
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Re: New Water Heater Pounding Puffing Sound


The sound is caused by the air that got trapped in the house piping as it was being displaced by the water when you filled the new tank. It will work itself out of the system in a matter of a few days.
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Old 12-23-2017, 05:02 PM   #10
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Re: New Water Heater Pounding Puffing Sound


What's up with that vent, Hoss?





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Old 12-23-2017, 11:02 PM   #11
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Re: New Water Heater Pounding Puffing Sound


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What's up with that vent, Hoss?





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I know it looks bad because the new water heater was a little taller so it didn't fit and I was being lazy. I will fix it if you think it will cause any issue. ?
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Old 12-23-2017, 11:30 PM   #12
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Re: New Water Heater Pounding Puffing Sound


Seriously? That's a life issue, man. Do it right; don't expect a free do-over.
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Old 12-24-2017, 12:05 AM   #13
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Re: New Water Heater Pounding Puffing Sound


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I know it looks bad because the new water heater was a little taller so it didn't fit and I was being lazy. I will fix it if you think it will cause any issue. ?
I'm assuming you don't know the function of the vent? I would hire a plumber asap.
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Old 12-24-2017, 09:34 AM   #14
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Re: New Water Heater Pounding Puffing Sound


No shut-off valve on the hot side?
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Old 12-24-2017, 10:02 AM   #15
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Re: New Water Heater Pounding Puffing Sound


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Originally Posted by seven-delta-fortyone View Post
what's up with that vent, hoss?





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Old 12-24-2017, 01:55 PM   #16
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Re: New Water Heater Pounding Puffing Sound


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Seriously? That's a life issue, man. Do it right; don't expect a free do-over.
Actually I'm a woman "man" but thanks for the advice. Very helpful.
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Old 12-24-2017, 01:58 PM   #17
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Re: New Water Heater Pounding Puffing Sound


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No shut-off valve on the hot side?
There is no shut off valve on the hot side. I've now noticed it is only happening when we flush the toilets not when running shower or anything else.
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Old 12-24-2017, 03:20 PM   #18
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Re: New Water Heater Pounding Puffing Sound


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Actually I'm a woman "man" but thanks for the advice. Very helpful.
Is that your excuse for being lazy and doing a half ass job?
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Old 12-24-2017, 04:08 PM   #19
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Re: New Water Heater Pounding Puffing Sound


I signed on here hoping for some helpful advice. I am not a plumber, I am a flooring contractor. I would have GLADLY hired a plumber if I could have afforded the price quoted. Just like in my business I have seen people DIY the work and it usually doesn't look close to as good or correct sometimes and that is understandable. My dryer also broke last week and I am fixing that instead of taking it to a professional. We used to live in a country where people did things for themselves and the wealthy could hire specialists/plumbers to come in and do the work for them. Now everybody expects to hire sombody for everything. Since I am obviously not getting any helpfull advice from this online community I will delete my account so as not to further offend you all.
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Old 12-24-2017, 04:38 PM   #20
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Re: New Water Heater Pounding Puffing Sound


There's nothing wrong with diy if it's done correctly, when it becomes a safety issue you better figure out how to do it right or hire someone. The word "man" used by Tinstaafl wasn't meant as a male.

You received opinions on what the issue might be but when you posted a pic comments were made on your crappy unsafe diy job assuming because you were lazy. Do you work that way on your flooring jobs also?

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