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  1. DB Myers

    Please Check My Numbers - Reverse Flow - 36" X 24" X 3/8"

    23.25 ID X 36 Long X 3/8 Pipe = 15284 sq in FB/CC opening = 61" RF Plate Opening from Firebox = 61" Area Under RF Plate - 61" RF Plate Open End = 61" Firebox = 19" Tall X 20.5" Wide X 16" Deep = 6232 (33% = 5087sq in) FB to CC - Radius 11.62 x Segment 5.25 = Segment of 71.848 sq in" - 1.5 lip...
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