Hot water baseboard bleeding air.

Old 09-13-02, 05:44 AM
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Hot water baseboard bleeding air.

What is the best and proper way to bleed a hot water baseboard system that has been open for a couple of weeks? New baseboard units were installed. I have tried opening the valves near the zone units while the circ. pump is on but only hear some distant gurgling and no water flow. Source pipes are barely warm but the return pipe is hot. I assume it is air blocking the flow but not sure how to get it out. Thank you in advance for any help you can offer.
Old 09-14-02, 06:20 AM
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If don't have bleeders on the baseboard, you'll have to purge the air out. There should be valves to isolate the baseboard you want to purge. You need to raise the water pressue to about 20-25 lbs. Then open the purge valve on to one you want to purge or bleed. You will be using the water pressure to move the air out of the system. If you are not sure of this you may need to call a contractor to do it for you.

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