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Posted by Steve on January 24, 2005 at 07:40:21:
I have a 3 zone hot water closed loop heat system. The boiler was just replaced a few months ago with a New Yorker boiler. The 3rd zone was added at that time in an addition with about 970 sq feet. My two existing zones heat with no problems. Some of the baseboards in my new zone don't seem to be heating, or heating very little. What's strange is the baseboards in the beginning of the loop and the end of the loop get nice and hot. But 2 of them in the middle of the loop seem to do almost nothing. What can cause this?
Huge Air Pocket?