Question for a plumber on a forced hot water system

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Originally Posted by MakoMike

No its not normal. Sounds like you h ave air in the system that is restricting the flow. do you have bleeder valves on it?

Sounds like it's air bound,air in the circuit will cause water flow problems like lack of heat in the highest area of the dwelling.

Originally Posted by #^&#^&#^&#^&#^&#^&#^&#^&#^&#^&#^&

they look like this

bleeder valve could be clooged how old is the system.

Originally Posted by Saltheart

I think you can switch the direction easily just as you said. Shouldn't make any difference. I know it wouldn't be a problem if I did it at my house but i suppose there may be something different about your system but I doubt it.

Un sweat the fittings and reverse the water flow?I wouldn't recomend this,most systems are created & designed to run a certian way.

You are positive that you have forced hot h2o.What I mean is you have bbh but do you also have a Hydro pack in the attic which produces forced hot air through a hot water coil located in the air handler,hot water is delivered to this coil from Pex tubing or (copper but pex in your case)& fed from the boiler.




Bob

[Water Treater]

I would not reverse direction of water flow. Best to solve the root cause of the problem, which sounds like it's AIR IN THE PIPES.
The smallest amount of trapped air can (and will!) block water flow and explain the hot/cold water symptoms you describe.
If you bleed all the air from the system and you can still hear air (you should NEVER be able to hear water flowing), you're still introducing air into the system. Check suction side of pump to see if you're s#^&#^&#^&#^&#^&g in air. The air is being introduced somewhere, maybe when boiler (heater) shuts off and water begins to cool in the pipes. When you heat water and then allow it to cool, negative pressure (a vacuum) develops which will suck in air if plumbing connections are not tight.

[Steve K]

Thanks for all of your replies.

The entire system is only two years old. I am positive that I have a forced hot water system. I live in a condo with no attic.

Last night I drained the boiler and pipes. I attached a hose to the output pipe and I was able to get some air out of the pipes. When the heat came on this morning, I was not able to hear the water rushing through them. I will keep monitoring it for the next few days and let you know.

Thanks again,
Steve