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Posted by Eric S on May 23, 2005 at 21:07:41:
I have a Weil-Mclane GV4 gas boiler with air noises near the boiler. Spiorovent/extrol-30 is on the supply side. Circulator is on the return side (inside GV4). Would it help to move spirovent to return side and/or add circulator to supply side?
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