Running Natural Gas Pipe to Appliances

Rschrei518 · 11-30-2007, 07:29 PM

I am getting NG installed and i would like NG run to appliances the Range and dryer the problem is i am on a slab and the only way to get there is through the ceiling and going through the joists. The Floor joists run in the opposite direction i have to go so the plumber will have to go through them. They all say it can be done but won't be easy and there will be a lot of couplings and 90's is it really that hard. It is pretty much a straight line so the range is on the way to the dryer. Is it really that hard to run i assume 3/4 inch pipe through the floor joists? I am not worried about the drywall that i could fix They have to go through about 8 floor joists

I would prefer they run iron pipe i know csst would be much easier but i am not sure if it is legal where i am

Any Thoughts

Marlin · 11-30-2007, 07:34 PM

8 joists is what, about 12 ft? Try getting a 12ft piece of 3/4 black pipe through a hole barley larger then 3/4in between two joists. The only way it's going to happen is if they open the side of your house to slide lengths in. You're going to have a lot of couplings in that ceiling. Their is nothing wrong with that though.

Rschrei518 · 11-30-2007, 07:43 PM

Isn't this a fairly common thing plumbers have to do. Is there any problem with having a lot of couplings?

Marlin · 11-30-2007, 07:59 PM

Yes it's common but just because it's done often doesn't mean plumbers can change physics to get lengths of pipe into places they don't fit. The only thing wrong with more couplings is when black pipe leaks it's almost always at a fitting. The more fittings you have, the more possible leaks you have. So long as they tighten everything up and use dope on the threads all the couplings mean is more labor, they won't adversely affect anything.

As for gas flex, I don't trust it. It's cheaper though and more and more people just want whatever is cheapest without regard for longativity or safety so that's the way it's going.