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xoxoxoBruce · 07-25-2018, 01:26 PM

If it's a damper and usually closed at night when the fire is banked, the notches may be so the flow can't be choked off entirely. Banked fires make CO too.

07-25-2018, 01:26 PM	#5
xoxoxoBruce The future is unwritten Join Date: Oct 2002 Posts: 71,105	If it's a damper and usually closed at night when the fire is banked, the notches may be so the flow can't be choked off entirely. Banked fires make CO too. __________________ The descent of man ~ Nixon, Friedman, Reagan, Trump.