Air in Force Hot Water Baseboards

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Old 01-02-07, 06:12 PM
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Air in Force Hot Water Baseboards

Have forced hot water heating sytem. Burnam boiler with hy-vent vent with cap. At beginning of the heating season, usually get gurgling sounds from teh baseboards. How do I eliminate without calling in a plumber? Do I loosen the hy-vent vent cap? Should this cap be tight (like hand tight) or loose during normal operation? Thanks.
 
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Old 01-02-07, 06:22 PM
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Hy-Vent

The cap should be left loose to allow the air to escape. They are often tightened due to leaks. Instead the vent should be cleaned or replaced. If the vent is in an area where a leak could cause serious damage, this is justification for closing the cap after venting the air.
 
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Old 01-03-07, 11:37 AM
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Originally Posted by Grady View Post
The cap should be left loose to allow the air to escape. They are often tightened due to leaks. Instead the vent should be cleaned or replaced. If the vent is in an area where a leak could cause serious damage, this is justification for closing the cap after venting the air.


You can push a small plastic hose onto the vent valve and tighten it with a small cable tie. Then direct any vented water away from the boiler area into a bucket until all the air is purged out.
 
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Old 01-03-07, 02:28 PM
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If you have lots of air in the system you may need to bleed at the baseboard valves with a raditor key ($3 at a hardware store). You will see the small valve at the end of the baseboards under one of the end flaps. Turn the key with a cup to catch water from the nipple on the valve. Drain until you get a constant stream of water, but it doesn't sound like you need to do that for a little gurgling.
 
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