hot water boiler

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Old 11-04-19, 11:39 AM
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hot water boiler

i got a now burnham oil boiler installed they put the circulator pump on the return line with the arrow pointed toward the boiler they put the expansion tank on the the supply pipe will this work
 
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Old 11-04-19, 11:34 PM
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Probably, but it is wrong. The pump should ALWAYS pump away from the expansion tank connection.
If the pump is on the boiler return piping then the expansion tank should be connected on the return piping before the pump. Since this raises other concerns it is best to simply mount the pump on the supply piping after the air elimination device.
 
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Old 11-05-19, 12:25 PM
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Yes it will work and in most systems it does not make noticeable difference.

Theory is one thing, actual practice another.

If the system heats the place satisfactorily without issues, just live with thought of imperfect design.

Mine are mounted upside down on floor and connected to return line / boiler input. When a diaphragm goes does not have to wrestle with heavy water filled tank or worry about stress on hydronic lines.
 
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