house too cold, here my water in the pipes?

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Old 11-22-08, 01:01 PM
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house too cold, here my water in the pipes?

well my boiler is new last year, and it worked fine. this year its not heating my house enough. it is a big house and my 2nd floor loop is big. i can here the water in my pipes like a swooshing sound, almost like there is not enough water in the pipes???

is this possible. should i purge the system?
the pressure in the boiler is fine? the high on the aqustat is 185 and high diff setting is 10.
 
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Old 11-22-08, 06:36 PM
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the pipes in the house have like a gurlging or a sloushing sound? is this air in the system?should i re purge it or open the vent on the airscoop? the pressure in my system is about 12-15

the boiler is in my basement and i have 2 floor house. should i have more pressure in the system?
 
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Old 11-22-08, 06:43 PM
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Tony, you should NOT hear the water rushing through the pipes. The pressure should be 12 to 15 psi when the system is cold and it will (or should be) higher when the system is hot. Assuming you have heat on the second floor of the house it should probably be closer to 20 psi when the system is hot, depending on several other variables.

I suggest that you let the system cool to below 100 degrees and then check the pressure. I'll bet a dozen donuts that it will be much lower than 12 psi and that means that you need to add water AND vent the air.

What do you have for heaters (cast iron radiators, baseboard convectors or?) and do the individual heaters have vent valves?
 
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Old 11-22-08, 06:57 PM
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i have all baseboard heating. i have 3 zones in my house. can here water in all 3 zones , not much really more of the swooshing sound on my 2nd floor.

i have no air vents on the base aboards, i do have an airscoop on the boiler.<a href="http://s207.photobucket.com/albums/bb173/tony45power/?action=view&current=100_0879.jpg" target="_blank"><img src="http://i207.photobucket.com/albums/bb173/tony45power/100_0879.jpg" border="0" alt="Photobucket"></a>
 
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Old 11-22-08, 07:08 PM
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i just went and seen my temp was 175 and pressure was about 16psi. its hard to tell exatly the pressure,

i released the green cap on the air scoop and a bunch of air came out, i hope this helps.

the water feed is set to 12 psi, is this correct?
 
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Old 11-22-08, 07:20 PM
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Okay, I vaguely remember the picture. Without air vents on the heaters you can only remove large quantities of air by "purging" your system via the hose bib on the return line; not a system that I approve of but it seems to be the way they are installed these days.

You must have a water leak though to get that much air into your system.

Something you might try is to use the "quick fill" lever on the pressure reducing valve in the make-up water line to raise the pressure to about 20-25 psi. If you are lucky the air will move in the system and be eliminated from the air eliminator's air vent valve. As the air is eliminated the pressure will come down and you may need to add some water via the quick fill. At 175 degrees I think you should have about 18 to 20 psi for a house with heat on the second floor and the boiler in the basement.

i released the green cap on the air scoop and a bunch of air came out, i hope this helps.
The screw-cap on the automatic float valve should normally be left at least one turn loose from tight. Only close this cap tight if the vent valve is leaking water.
 
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Old 11-22-08, 07:32 PM
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thanks for your help, i raised the water pressure to about 18 psi at 180 temp, and the one of the circ's kicked on and i herd some more air come out. the cap must have been keeping the air from coming out of the system.

there is no leaks that i know of but i have a really slow drip on one of the nipples on the black pipe. has a drip like 2 or 3 drops an hour. but is has been dripping for about a year now.

should i put the pressure tomarrow at about 20psi at 185 temp?

and also should i install air vents on the base boards in the loops?

and is yes in all 3 loops? how many vents and where should i install them>?
 
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Old 11-22-08, 07:46 PM
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I'd say let it run this way for a day and see what happens. If the pressure drops then add some more water to keep it at 18 to 20 psi when the temperature is at 180. If it eventually quiets down and heats properly then live with it until spring/summer.

I don't believe in doing major work on heating systems during the winter months unless it is absolutely necessary. It is too easy to "get into trouble" and find yourself with no heat at all. Then you either have to call someone in at a large expense or work your tail off getting the system up and running again, sometimes having to take time off from your paying job.

It's amazing how much water a few drops per hour will add up to over the course of a year, I want you to fix this leak next summer. Adding water to a heating system is one of the worst things you can do. A tight system will go for years without needing any additional water.

Adding vents to the baseboard convectors after the fact is a difficult job. If you can get this system tight (no leaks) and then purge the air once you don't absolutely need the vents on the heaters. If you do choose to install them (in the summertime!) they are placed at the outlet of the heaters where the piping turns downward.
 
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