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Old 11-30-2008, 06:39 PM   #1
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run gas line in room on slab


I have a small dilema, I want to install a gas fireplace in a room that is on a slab and has a cathedral ceiling, next to this room is a utility room that has the gas line in it. The run would be about 32 ft 3/4 inch pipe, how can I run this? In the room somehow? or outside the room?

Scott NJ

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Old 11-30-2008, 08:32 PM   #2
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run gas line in room on slab


Run it outdoors....Buried? Pop it back in by the fireplace.

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Old 11-30-2008, 10:30 PM   #3
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run gas line in room on slab


how deep do I need to go for a gas line, and what kind of piping would I use?
should I use the yellow flex cable?
Do I come out of the utility room in a sleeve?
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Old 11-30-2008, 11:50 PM   #4
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run gas line in room on slab


Most underground installations are plastic line. It must be buried 12". You'd need a plumber to do the plastic line for you. Black iron gasline can be buried if protected with a wrap, if approved by the codes authority in your area (the code gives them the option).
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Old 12-01-2008, 12:32 PM   #5
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run gas line in room on slab


Check your local codes for underground gas piping. Most steel lines underground must be welded (no threaded or compression joints). Some areas allow soft copper, outside the home. The plastic lines require a licensed Plumber to make the connections.
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Old 12-01-2008, 03:47 PM   #6
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run gas line in room on slab


Quote:
Originally Posted by majakdragon View Post
Most steel lines underground must be welded (no threaded or compression joints).
Where is that required? I'm unaware of any such requirement in the I-codes...
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Old 12-01-2008, 03:59 PM   #7
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run gas line in room on slab


I have run tons of underground gas lines (from 3/4 to 8") when I was in Ohio. All steel lines were welded. All were also required to be coated and, depending on soil conditions, had an anode bag Cad welded to them. The plastic came along during my last 5 years there. The gas company inspected all gas installations. Guess this is another of those "check local code" issues.
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Old 12-01-2008, 09:53 PM   #8
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run gas line in room on slab


Can I run black iron 3/4 pipe outside the room above ground 6 inches up from the ground along the outer wall then 90 degree elbow into the room in a sleeve?
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Old 12-01-2008, 11:15 PM   #9
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run gas line in room on slab


I would think that is a good idea. Just make sure it is secured well in case something falls on it or someone would use it for a step. You may also want to consider marking it so no one makes a mistake and cuts into it.

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