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Old 10-12-2009, 06:29 PM   #1
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zone valves


i'm going to installing a slant fin gas boiler. should the zone valves go on the supply or the return side....

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Old 10-12-2009, 08:22 PM   #2
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zone valves


if you install it on the return side it would be exposed to lower temperatures which would put less stress on the valve.


Last edited by GetYourShineBox; 10-12-2009 at 08:25 PM.
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Old 10-12-2009, 08:47 PM   #3
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zone valves


Valve on supply and circulators on the return

Good info on this site

http://www.bellgossett.com/BG-Litera...us-English.asp

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Last edited by Plumber101; 10-12-2009 at 08:50 PM.
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Old 10-13-2009, 06:00 AM   #4
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zone valves


Yep, supply side. If you install them on the return. Some systems will actually gravity heat. By allowing hot water to travel along the top of the supply pipe, and the cold water of the bottom of the supply pipe.
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Old 10-13-2009, 05:53 PM   #5
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zone valves


its been about 20 years since i installed a gas boiler, but i remember a expansion tank with a water fill to fill the boiler. do they make such a thing anymore? i;m just trying to figure out all my parts and locations for a 2 zone system
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Old 10-13-2009, 06:50 PM   #6
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zone valves


Fil tro's are still made.
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Old 10-14-2009, 04:18 PM   #7
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zone valves


is that the correct spelling for that? i tried googling that part , no such luck
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Old 10-14-2009, 04:19 PM   #8
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zone valves


got it.... thanks all

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