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Old 04-02-2013, 11:18 AM   #1
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Propane gas line


I am wanting to install black iron pipe inside my house to replace my current lp lines. Currently I have 1/2 O.D. copper line running from the tank to the house. This line is T'd underground and splits to two sides of the house for a toal of 10ft to the T then each split is 10ft. One split goes to the stove and that is it. The other split goes to a manifold and comes out 3/8 O.D. to my waterheater, a five brick heater and a three brick heater. The waterheater and 5 brick heater sit together and the three brick heater is 16' away. Total length of current system is 50'. BTU load is 180k.

I was wanting to replace all of this with a 10ft line to the house then all black 1/2 pipe to each appliance and relocate a few. The total length would be 125' with the longest run being 80' to a gas log fireplace that will be added in the future. Since I don't have the fireplace yet the longest run is 33'.

I spoke to the local gas company and they had no clue but I am allowed to run the lines myself and they will pressure test it when I am done.

Propane tank is a 250 gallon above ground tank
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Old 04-02-2013, 12:33 PM   #2
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Propane gas line


Ayuh,.... Black iron pipe is 'bout 1000 times harder to install, with absolutely No added benefit...

If yer needin' more volume, go with bigger copper....
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Old 04-02-2013, 01:11 PM   #3
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Propane gas line


I don't believe i need anymore volume as everything currently runs just fine and has for the last 20 years. I was installing the black pipe because the current lines come thru 3" above the bottom plate of the house which sits at ground level and has rotted. So I am moving everything off the ground and instead of having copper running up the outside of my interior walls I was going to put the black pipe inside the walls. Everything I have found online is about natural gas pipe sizes so I was wondering if 1/2" is big enough for propane? It is definetly an upgrade in size and volume from what I have now
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Old 04-02-2013, 02:17 PM   #4
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Propane gas line


If half inch copper is currently doing the job I can't see a problem with half inch black pipe. If I had something around my homestead that valuable I'd sell it to pay for the pipe.
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Old 04-02-2013, 05:46 PM   #5
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Propane gas line


just google propane gas sizing chart
i use gastite flash sheild flex pipe products they have sizing charts on their web site also
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