PEX a, B, or C

Discussion in 'Geothermal Loops' started by Wolfgang, Jun 3, 2023.

  1. Wolfgang

    Wolfgang New Member

    I plan to use 3/4" PEX tubing for my horizontal ground loop. PEX tubing comes in three different versions, PEX A, B, or C. Which version should I use?
    For heating applications, they recommend Oxygen barrier PEX tubing. Is this necessary for ground loops?
  2. SShaw

    SShaw Active Member Forum Leader

    You can look up the detailed specs in the IGSHPA design guide, but it mentions using either PEXa or HDPE. As far as I know, HDPE pipe is the industry standard for ground loops and PEX is rarely used.

Share This Page