Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

iron or copper?

Tony_23 Member Posts: 1,033
On if it's THE worm (from the bottom of the bottle)


  • rox
    rox Member Posts: 23
    iron or copper when piping hydronic system

    What are the pros and cons of iron versus copper when piping a new boiler? It would seem copper would be a lot quicker, no threading pipe, no cutting oil, not as heavy. Would appreciate your opinions.
  • gerry gill
    gerry gill Member Posts: 3,078
    Serving Cleveland's eastern suburbs from Cleveland Heights down to Cuyahoga Falls.

  • rox
    rox Member Posts: 23

    hot water
  • hr
    hr Member Posts: 6,106
    Another personal preference choice

    I use mostly copper as I bend and use press fittings. For a pro, looking to maximize his labor solder-less, fitting-less makes sense.

    With cast iron boilers I like to do the near boiler piping in threaded pipe sometimes.

    Copper is easier to cut into later to add or modify stuff :)

    hot rod

    To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"
  • I'm with Hot Rod

    We always pipe the supply in black steel , to help support all the heavy weight of the circs , expansion tank and airscoop . We transition out of the return of the boiler with a black tee and copper to male adapter and pipe the entire return in copper .
  • J.C.A._3
    J.C.A._3 Member Posts: 2,981
    I too,

    Like to pipe out of the boiler with black pipe. It serves as a good foundation for the rest of the system, and in my opinion looks much nicer than copper. It also leaves a great place to "add on", later in the life of the system if well thought out.(I prefer nipples and caps as opposed to plugs....just makes thing easier later).

    The cost differences are but a few dollars and the easy expansion is an added attraction, to me anyway.... Chris
  • jeff_51
    jeff_51 Member Posts: 545
    use nothing but copper right from thje boiler

    but that of course is personal preferance. I think it looks better. We use Xpando when going from the cast to copper and never have a leak, and a couple of well placed hangers takes care of any weight problem. The guys on the east coast who also do steam use alot more black pipe. Kind of depends where you are, Down south they use alot of steel boilers, but up north is all cast iron. Alot of what you have been taught and what you are used to using. Kind of like circle saws. Guys on the east coast use direct dive, cause thats where they were invented, but guys on the west coast use worm drive cause that was where they were invented
  • David Sutton_6
    David Sutton_6 Member Posts: 1,079

    now who in there right mind would let a worm drive a saw ??i just dont get it ;)
  • Gordy
    Gordy Member Posts: 9,546
    worm drives

    Worm drives cut straighter with less effort,unless of course you ate the worm the night before,and they are more durable. Personal choice. The whiners who have to use a worm drive have small arms ;)
  • thp_8
    thp_8 Member Posts: 122
    Not to bash but,

    There is several good reasons for steel in the piping mix.
    It can be both rigid and flexable at the joints at the same time. One of the most important qualities of the steel is what is most often overlooked. It's effect on water quality. You know those tube jobs with all the brass, copper and pex. You know how some of them look nasty at the joints. That's a system that the water has not met an equilibrium state. Iron deprived, unnatural state for the water. Some manufacturers say don't use any steel. There is a reason for the steel.
  • jeff_51
    jeff_51 Member Posts: 545
    gosh, I didn't mean to open that can of worms

    ha ha ha ha ha ha!!!!
This discussion has been closed.