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Old 01-29-2007, 03:36 PM   #76
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Steam Heat still making banging noises


Burnham steamer, if you could measure from the concrete where the boiler sits on, to the height of the hartford loop. Look at the view glass in the front of the boiler, 4inc should be half of the glass, the loop going back into the water return should be that height, thats what I was told. So for instance, my view glass half full (4inc), height from floor to 4 inc on sight glass is 24inc high. So they are telling me the hartford loop should be at that height. Mine is a little higher, and they are stating this is causing the flooding. Thanks so much.

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Old 01-29-2007, 04:42 PM   #77
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Steam Heat still making banging noises


I tried to attach pictures but this forum not accepting... the glass measures 22" to 32" at the in/output fitting and 26" at the 1/2 way mark. the loop is 22 1/2 " off the ground ( below the half fill mark on the glass... I hand some goog pix's but I guess the .jpg files are too large.... look at those web sites I gave you, particularly masterplumbers.com .. Interesting
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Old 01-29-2007, 10:11 PM   #78
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Steam Heat still making banging noises


Burnham steamer, Thanks. How much below the half fill mark on the glass is the loop? I am trying to lower mine, and beleive this could be the problem why she is flooding.
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Old 01-30-2007, 08:41 AM   #79
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Steam Heat still making banging noises


Are the pipes insulated?
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Old 01-30-2007, 08:43 AM   #80
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Steam Heat still making banging noises


If you were to turn off half of the radiators and try to run the system will it still flood?

Turn half of the radiators off that are the farther away from the boiler.
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Old 01-30-2007, 08:59 AM   #81
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Steam Heat still making banging noises


Redline, I beleive its got to do with back of the boiler piping. I did it to burnham specs and its too high. I beleive the hartford loop should be at the water level height, 4inc. If I shut radiators off, it doesn't make a difference, it just takes the water upstairs to the second floor radiators. She ask for water, if you don't add water she shuts down and doesn't heat, if you give it water when the condesate comes back, you have to drain her or else she floods. Hope this helps. Thanks
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Old 02-01-2007, 03:07 PM   #82
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Steam Heat still making banging noises


I was not sure if the new piping that you added made the system too large for the tank.
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Old 02-01-2007, 04:12 PM   #83
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Steam Heat still making banging noises


Hey Redline, I doubt it. We only replaced what we took out with the same pipe sizing, we also didn't add extra lines. I beginning to realize its the piping on the back of the boiler just Mdshunk had stated before.
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Old 02-03-2007, 02:54 PM   #84
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Steam Heat still making banging noises


Can anyone explain the reason for water hammer in a dry return line?

My water level has been remaining at the proper level in the gauge. The return line always hammers hard at the beginning of the firing cycle and then it stops after a minute. I can actually pin point the exact area where it's coming from. You can also hear water swiching in the return line. My radiator valves do not spit any water, but I do hear some condensation noise in them. I did notice that the return line is actually pitched the wrong way for a one foot section that comes off the end of the main. Then this leads to a 90 which then turns into a straight 25' run to the boiler. This 25' run is level at some points and barely pitched. Do you think if I change the return pipes with more of a pitch that it will cure my hammering in them?

Last edited by doog; 02-03-2007 at 02:56 PM.
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Old 02-03-2007, 10:50 PM   #85
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Steam Heat still making banging noises


Yes Doog, pitch that return line towards the boiler. She shouldn't be level at any point, water will just sit there and that will definately cause hammering. I have been working on my boiler for the last few months, and boy am I really learning the steam heat system the hard way, working on it myself. Supply line has to pitch away from the boiler, and return towards the boiler.
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Old 02-04-2007, 12:19 AM   #86
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Steam Heat still making banging noises


Thanks Helpless. I just don't understand why the return is banging. That means that the steam is flowing in the return line as well as the main. I would think the return should only have the condensation and no steam traveling in it.
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Old 02-05-2007, 12:13 PM   #87
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Steam Heat still making banging noises


http://www.steamforum.com/index.asp
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Old 02-07-2007, 01:10 PM   #88
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Steam Heat still making banging noises


Hi Doog, there isn't probably steam in the return, but since the return is not pitched towards the boiler, the water return (condensation) is probably back up near your supply and thats why your getting banging. Pitch that pipe towards the boiler and you should be fine.
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Old 02-07-2007, 01:13 PM   #89
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Steam Heat still making banging noises


Thanks to Burhman Steamer, my boiler is now working fine . He send me some photos of his back of boiler piping, and wham that did it! Thanks Burhman Steamer!!!!!!
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Old 02-07-2007, 03:02 PM   #90
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Steam Heat still making banging noises


What did you have to change?

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