ECR International COMBI 115 Installation, Operation And Maintenance Manual page 45

7 - GAS SU PPLY PI PI N G
This chart is sourced from NFPA- 54 2015 wit h t he BTU rat ings for t he m at erial, lengt h, and diam et er of gas pipe.
I NTENDED USE: Pipe Sizing Bet ween Nat ural Gas Met er, or Propane Single - or Second- St age ( Low- Pressure) Regulat or and
Appliance.
4 1
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