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How to get air out of Hydronic heating system

How can I get air out of my hydronic heating system.
I want to add more baseboard heat in some rooms,must I drain the whole system or can I just drain the zone it's on
thank you
Ken Harington

Comments

  • Fred Harwood
    Fred Harwood Member Posts: 261
    If

    the zone has isolation valves, no problem. In order to solder, you'll have to open the loop to atmospher when soldering. Then, if you're "pumping away," the rest is easy.
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