Installation Instruction
Page 11
... system if necessary to avoid sagging and kinking that extend into any plastic or metal foil vent with rigid or flexible heavy metal vent. ■ Review Vent system chart. DURASAFE™ venting products are recommended. ■ Rigid metal vent is a new vent system Vent material ■ Use a heavy metal vent. Good...
... system if necessary to avoid sagging and kinking that extend into any plastic or metal foil vent with rigid or flexible heavy metal vent. ■ Review Vent system chart. DURASAFE™ venting products are recommended. ■ Rigid metal vent is a new vent system Vent material ■ Use a heavy metal vent. Good...