Old 12-06-05, 05:55 PM
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i have an old handfired boiler converted to oil its a beckett i changed the pump but i still get a serious afterburn its making carbon deposits on the head
Old 12-06-05, 06:49 PM
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Several things can cause this including: The burner being sloped incorrectly, heat being reflected back from the chamber onto the burner, (installation of an amulet often helps this), air in the fuel system, cold oil (convert to one pipe or install a Tiger Loop), & a bad pump (not likely).
Old 12-08-05, 06:16 PM
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I think Grady hit most of the reasons. If you have the Z dimension set wrong or there is flame impingement on the retention head, you will quickly grow a clinker. The burner tube should pitch down toward the end head. The flange has a couple degrees of angle built into it but I have seen them put on upside down and defeat the whole purpose.


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