noisy heating pipes


Old 12-18-02, 03:31 PM
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noisy heating pipes

I have noises of pinging ( water/air)on second floor when water from heater comes to second floor baseboard, had system purged before maybe two years ago and it worked. I need to know how to purge myself.
Gas heater- two zone -baseboard throughout?
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Old 12-18-02, 04:09 PM
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Pinging is a good descriptive word. It is not air though. It is the expansion of the baseboard element causing the aluminum fins to slide along the baseboard enclosure. It becomes more prevalent the longer the heating system runs because the water temp. continues to increase as long as the thermostat calls for heat. You could check the high limit setting on your boiler and run it at 180. That will keep the expansion to a minimum and still produce the heat at the output that the baseboard was rated for.
Old 12-19-02, 06:34 PM
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Re: noisy heating pipes

These pings are --very-- loud maybe three- four times louder than first floor.

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