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Roztom1 10-11-2007 07:31 AM

HELP: Bleeding Baseboards
HW mixed radiator/baseboard system. Radiators HOT, basboards barely warm at best even with Thermo up high. NO bleeders or valves except one bypass at boiler. Baseboards tapped off main line one side to feed other to return. Can't get air out of baseboards. Need guidance: Where do I put in bleeder for basebaoards? On the return side at elbow just before it goes into floor? IS there any other way to get air out of baseboards? I have pushed pressure up until PRV pops and run water through system with hose attached but air does not come out of baseboards. Thanks.. COLD in Chicago..

scorrpio 10-11-2007 09:10 AM

Best location for a bleeder is at return elbow.

However, a vent coupling (as close to return elbow as possible) might be easier to install

P.S. Remember that vent cap has a rubber seal. Remove the cap before sweating and replace it after everything has cooled off.

Roztom1 10-11-2007 03:10 PM

Does vent coupling work better than or is it equal to a bleeder? Thanks

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