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Radiant Manifold in 2x4 Wall?

AlaskaDick
AlaskaDick Member Posts: 27
in Radiant Heating

Can a radiant manifold be fit into a 2x4 wall? Google's AI says it can be done with a low profile manifold, but didn't point to a suitable manifold or examples of this type of installation - possibly because I wasn't using the correct search terms on Google or here.

I have a logical central location where a manifold to feed five or six loops could be placed within the wall, but the wall is 2x4 construction. The wall is only 7 feet wide and I could fur it out to 2X6, but replacing or modifying a door frame for 2X6 probably makes that more trouble than it is worth. Loops are 1/2" PEX and leaders and loops will come from a (very low) crawl space. It's not a load bearing wall.

Thanks for any suggestions or photos.

Comments

  • hot_rod
    hot_rod Member Posts: 24,792

    this one will and they are staggered for tube to tuck in the indents

    IMG_9639.jpeg
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • PC7060
    PC7060 Member Posts: 1,600
    https://forum.heatinghelp.com/discussion/200435/radiant-manifold-in-2x4-wall

    building a door frame out is pretty simple; use a biscuit joiner to get/keep sections aligned during glue up. Hit with sander then paint and you ready for trim out.

  • AlaskaDick
    AlaskaDick Member Posts: 27

    Hot rod - Thanks.

    PC7060 - I've modified several door frames but it takes time. This door would require extending on the hinge side so I would have move the hinges or remove the frame and move it.

    PC7060
  • hot_rod
    hot_rod Member Posts: 24,792
    edited February 8

    There are a bunch of these metal cabinets out in the distribution still. Check the dimension they are a metric size, but I think the cabinet still fits a 2X4, which may be under 3-1/2" these days!

    'Also a look at how the manifold keeps the tubes neat and aligned.

    Screenshot 2025-02-08 at 11.16.42 AM.png
    Screenshot 2025-02-08 at 11.17.04 AM.png
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • AlaskaDick
    AlaskaDick Member Posts: 27

    Hot rod - Thanks for the image showing the indentations. I wasn't sure what you meant in the earlier note and missed them when I looked at the web page. That's a nice design.

    Are the threads on the end of the manifold 1" BSPP? Does Caleffi offer a 90 degree angle piece similar to the one Rehau offers?

    image.png

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