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mlavergh

03:03PM | 03/22/04
Member Since: 03/21/04
2 lifetime posts
Bvhvac
We have a older house that we just bought about a year ago. for most of the winter our heater,although old has heated the whole house very well, until about a month and a half ago. we stopped getting heat on the 2nd and 3rd floor. the boiler lines are split into 2 zones. 1st floor and 2&3rd floor. we have tried to purge the 2nd&3rd floor loop of any air pockets that may exist but it seems the system is not filling back up with water. there are only purge valves in the basment, none on the third floor to let the air escape.

Do we need a self tapping&sealing bleeder valve installed on the third floor.

or does this sound like our circulator pump is failing?

Please advise

Thanks

plumber Tom

04:42AM | 03/23/04
Member Since: 05/10/03
801 lifetime posts
Is there a tapping on any of the 3rd floor rads that might be plugged? If so remove the plug and install a 1/8" NPT National Pipe Thread) Bleeder valve. Your system pressure might require more to reach the 3rd floor. An automatic feed valve with a valve before and after the auto-feed is recommended for the correct pressure. They come factory set at around 12 to 15 psi. If you have an older B&G (Bell and Gossett) circulator pump, oiling at the beginning of each heating season is strongly recommended. It's also handy to keep a spare coupler around for your make and model bearing assembly. Lastly check your zone valves to make sure they are opening and closing properly. Some have a manual setting that you can adjust it to the Open position.

mlavergh

12:33PM | 03/23/04
Member Since: 03/21/04
2 lifetime posts
Thanks for your response.

please excuse any stupid questions i ask.

1) "Is there a tapping on any of the 3rd floor rads that might be plugged?"

I'm assuming that a tapping is a type of valve? I have searched high and low and can not find any type of valve other than the ones in the basement. We have basebord heat.

2) "Your system pressure might require more to reach the 3rd floor."

We have circulator pump which pushed hot water to the third floor for the first half of the winter. so at least earlier this year it had enough pressure. right now our pressure is at 10, too low?.

3) lastly we don't have zone valves just one thermostat for the whole house.we plan to add another upstairs in the near future.

please advise

Thanks
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