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Steam Vacuum Vents
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vent the air from the returns.
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gwgillplumbingandheating.com
Serving Cleveland's eastern suburbs from Cleveland Heights down to Cuyahoga Falls.
Serving Cleveland's eastern suburbs from Cleveland Heights down to Cuyahoga Falls.
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Steam Vacuum Valves
I have (2) Hoffman #6 "Vacuum" Valves located above where my returns drop into my new boiler. (See attached.) What purpose do these serve? (I also have no vents on either of my main branches.)0
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