Normally you release the air at the baseboard registers,or theres automatic air eliminator built into the system fill valve.if you have a air lock in a heating system its not for a rookie to repair.this is if your talking about a grundfoscirculating pump,you don't really say ?
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Normally you release the air at the baseboard registers,or theres automatic air eliminator built into the system fill valve.if you have a air lock in a heating system its not for a rookie to repair.this is if your talking about a grundfos circulating pump,you don't really say ?