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black iron And Munchkin

Jeremy_14
Jeremy_14 Member Posts: 34
in THE MAIN WALL
As long as it's closed loop, black iron is good. I start off most of my gas boiler installs with black pipe because it's quicker and cheaper to put in black tees for low water cutoff, temp gauges, boiler fill, bleed drains, air vents, etc.

Comments

  • Jim_108
    Jim_108 Member Posts: 49
    Black fittings for Munchkin

    I have an install tommrow (replacing an in warrenty Munchkin 399) I have accumlated everything needeed as far as fitting as long as its ok to mix copper and steel. I want to start at the boiler with black fittings to my pump then switch over to copper to complete the primary/secondary loop. Boiler being used for closed loop heating only. Ok right?
    thanks
    Jim
  • Bryan_16
    Bryan_16 Member Posts: 262
    dont forget

    the unions near the boiler!
  • tim smith
    tim smith Member Posts: 2,800
    I always transition from steel to copper with a brass nipple and

    female adapter. I feel it is a better transition as far as expansion and mat. similarity. Just my .02
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