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Right size gas piping?

Luke4
Luke4 Member Posts: 4
I'm looking to run a new gas line in my crawl space in place of my old one. It is currently a 1/2 in pipe that stops at my water heater, but I am going to have a new 2 ton heater in my attic further down the line. The gas line will service my 3.5 ton furnace/ gas fireplace, 50 gallon water heater, 2 ton 40k btu heater, and my dryer.

Is 3/4 in gas pipe enough pressure to serve all those units? Roughly 60 feet or so to last heater, with a couple 15 foot detours for fireplace and first heater.




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