Hi, Im working on a kitchen and I don't know anything about extending gas lines. I was talking to my plumber and what we need to do for our job is extend a main gas line from 270,000 btu's. from an 1 1/2 inch pipe line. But he wants to feed a flex line through the floor instead of using a solid pile. What I would like to know is, Will the Flex pipe decrease the amount of BTU's that will travel to my equipment, if I am using it at full capacity?