Flexible copper as gas line?

[Bruce Thompson]

Can flexible copper be used as a gas line to a water heater?

[Marc D. Shunk]

Sure, done all the time. Particularly popular method with LP.

[Bruce Thompson]

Originally Posted by Marc D. Shunk

Sure, done all the time. Particularly popular method with LP.

I thought copper reacted with something in NG.?

[rmaday]

Originally Posted by bthompson1

Can flexible copper be used as a gas line to a water heater?

That copper, while "bendable", I don't believe that is "flexible" copper.

I don't like it.

Is there a drip leg?

[Bruce Thompson]

Originally Posted by rmaday

That copper, while "bendable", I don't believe that is "flexible" copper.

I don't like it.

Is there a drip leg?

Sorry, bad use of word.

For whatever reason...maybe our gas is cleaner down here, but I've never, ever seen a drip leg on any gas appliance.

[rmaday]

Here's something I found specific to Longview, Texas.

http://www.ci.longview.tx.us/files/h...klist_2494.pdf

I know y'all have some pretty tight rules, may want to call AHJ.

[Bob Elliott]

First thing I noticed was the blocked therm control.
Copper used to have a bad reaction to NG in the past.
They used to add something which caused a corrosion.
I like to see black pipe as I never trust that thin wall stuff for a flamable.
Yes where is the drip leg.?

[rmaday]

Check out THIS THREAD.

[Bruce Thompson]

Originally Posted by relliott

First thing I noticed was the blocked therm control.
Copper used to have a bad reaction to NG in the past.
They used to add something which caused a corrosion.
I like to see black pipe as I never trust that thin wall stuff for a flamable.
Yes where is the drip leg.?

what do you mean by "blocked therm control"?

Oh, if you mean in the picture, that is an optical illusion. The dial wasn't blocked.

[Bob Elliott]

Looked blocked but I think you should recommend a stainless flex

[Jeffrey R. Pope]

Copper for NG is allowed by many jurisdictions. The utility company has the final say, and it's dependent on the hydrogen-sulfide content of the gas provided (must not exceed 0.3 grains per 100 cu. ft.)

In CA, we are required to use listed, flexible appliance connectors.

[Bob Elliott]

Jeff even if allowed by code a copper flex like that I would still suggest changing.
Heck I have garden hose I would trust with a hose clamp more.
And have.

[rmaday]

Originally Posted by jpope

Copper for NG is allowed by many jurisdictions. The utility company has the final say

And there are some who do not allow it, thus call AHJ.

Originally Posted by jpope

In CA, we are required to use listed, flexible appliance connectors.

I think we can agree that that is not a listed, flexible appliance connector.

[Jeffrey R. Pope]

It's not an "appliance connector" at all, nor is it "flexible." My point is that most commonly-recognized-codes allow for use of copper in NG piping, and it's usually the utility company that has the final say.

[Bruce Thompson]

Originally Posted by jpope

It's not an "appliance connector" at all, nor is it "flexible." My point is that most commonly-recognized-codes allow for use of copper in NG piping, and it's usually the utility company that has the final say.

Thanks. Good idea. I'll call the city and the gas company and ask them.

Bruce