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Old 10-28-2007, 04:53 PM   #1
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When to purge air from hot water system


Hi;
I have a hot water heating system, and for some reason, I have always purged the air when the system is running and warm. Is this the correct time to purge, or should I do it when the system is not running and cold?

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Old 10-28-2007, 07:44 PM   #2
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When to purge air from hot water system


the hotter the better.

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Old 10-29-2007, 08:20 AM   #3
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When to purge air from hot water system


Quote:
Originally Posted by hvactech View Post
the hotter the better.
Thanks.
I Googled yesterday and found an article stating that the radiators should be warm, but that the pump should be off. I never had a problem with purging while the pump was running.

I eventually purged all of the air from the system. Two of the radiators which are the furthest from the furnace took some time, and as you said, the system needed to get hot.

Thanks

FW
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Old 11-29-2007, 04:33 PM   #4
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When to purge air from hot water system


How do you purge air from hot water heating system?
There are no vents on the 2nd floor base board radiators. Should I install vents? What type? Where?

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