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Nozzle 80 Degree Solid Cone
Off Cycle Damper Setting (B) No.1 (as low as it goes
Flamelock Setting (A) No. 1
Combustion Air (C) No. 1 to 1¼
Draft - (Inches of water column) .06 to .08
Tests for CO² must be made without a fire in the wood/ coal firebox, and with all doors and draft controls
completely closed. The burner should be fired for several minutes prior to taking a reading. Normal CO² reading
is 11 to 12 with a stack temperature of 300 degrees or less. This would give you an efficiency of 84 to 85 percent.