plumbing code

[Drum Hill Rehabber]

Does anyone know the national plumbing code for gas lines running inside a shop or shed for propane or natural gas heat. What is the acceptable piping that can be used.

 

[tele tech]

I use threaded black iron pipe, I know flex tubing is being used alot now,but the suppy house where I buy materials tell me the installer must be certified.

 

[Gary from Muleshoe]

Black gas pipe. I am positive nothing else can be used. Do not use copper, I am told it will corrode with gas running through it.

 

[Leroy]

All I know is copper is all that has ever been used here in Ohio. First put in my house in 1966 and never a problem on propane

 

[T_Bone]

Hi DHR,

As far as I know, gas line has to be green factory machine wrapped with AGA approved tape at connections if under ground.

Above ground exposed can be black or galvanized pipe since 1991 as they changed the way galvanize was applied to the pipe. It's now 99% electroplated so it's doesn't flake off like hot/cold dipped galvanized did.

T_Bone

 

[woodbutcher]

I built my house to be all-electric several years ago. Then, a few years later, an ice storm made me realize the error of my ways. I contracted with my propane dealer to run a line into the house. They ran copper underground from the tank, they ran black pipe up the outside wall of the house, and they attached stainless steel flexible tubing with a yellow plastic sheath and no connections to run from the eaves across the attic and down through the wall. They placed a regulator at ground level between the copper and black pipe.
Butch

 

[Bus Driver]

There is no nationwide code for this. Local and state codes vary widely. Your best answer will come from your local inspector.

 

[Drum Hill Rehabber]

Thanks to all for the replies. Looks like there are several different ideas depending on the local. I was leaning toward black pipe as a plumber sometime back said it was the safest in his opinion. What a good forum this is. Joe

 

[Dave Sherburne NY]

There is a special pipe dope for gas lines to. As
I recall, it says TFE on it. But you should ask
someone with a better memory than me , maybe
your local gas supplier.

 

[El Toro]

I have black pipe in the house and I used a flex line for the water heater and then heard about some of them failing. So I hard piped it too.

They had a lot of problems with copper tubing failing buried underground and replaced all of them. They had a machine to push the new line with a machine underground without any digging.
Hal

 

[CNKS]

Just put a natural gas furnace in my shop with black pipe. Had one galvanized fitting because Home Depot did not have the 1 inch elbow in black. Inspector made me change it. U.S. may have solved the flaking problem, but most of the pipe comes from China -- who knows what they do?

 

[Slowpoke]

Gas lines underground in my area are steel, under the house is black steel pipe. Soft copper tubing from the line to the appliance is no longer code, it must be an approved connector of metal flex tubing.

 

[loveshisallis]

Is there a natural gas fired heater I can use in the shop that does NOT have to have electircity?