09-25-2008, 02:33 AM
I always get a 48" flex for dryers 1/2" NPT. 5/8 is the OD (outside diameter). 1/2 NPT (National pipe thread) is the ID (inside diameter). They are the same when refering to gas. Not so with copper tubing.
48" long so you can connect both ends and then slide it into place. 36" if you are skinny, but there is no such thing as a skinny plumber.
Your plumber doesn't want you coming home with a 3/8 flex for a 1/2 connection. Although gas flex fittings have inside and outside threads so not all is lost.
Flexes howl when pushing to many BTU's through too small an opening. This usually happens over 100,000 BTU's. Nothing to worry about in residential.
So if you bought the 1/2" x 48" flex from HD you're fine. Plus every plumber should have an assortment of fittings to make this installation work.
When you see how easy it was and how much he charged you, you will wish you did it yourself.
Good Luck
48" long so you can connect both ends and then slide it into place. 36" if you are skinny, but there is no such thing as a skinny plumber.
Your plumber doesn't want you coming home with a 3/8 flex for a 1/2 connection. Although gas flex fittings have inside and outside threads so not all is lost.
Flexes howl when pushing to many BTU's through too small an opening. This usually happens over 100,000 BTU's. Nothing to worry about in residential.
So if you bought the 1/2" x 48" flex from HD you're fine. Plus every plumber should have an assortment of fittings to make this installation work.
When you see how easy it was and how much he charged you, you will wish you did it yourself.
Good Luck