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Figure 7.9: Duravent PolyPro, Selkirk, Polyflue or Centrotherm InnoFlue Horizontal Venting
(Vent Option #3 - 8, Terminal Option A)
Figure 7.10: Duravent PolyPro Horizontal Venting with Concentric Terminal,
(Vent Options #3 & 4, Terminal Option F)
VII. Venting
B. Design Requirements Unique to Horizontal Twin Pipe Venting Systems (continued)