Radiant Heat Tubing in Slab (installing on rebar)

Curious how much it cost us for radiant floor heating? We have all the product and cost details available on our website! ⬇

This step of slab preparation turned out to be easier than we thought! Having the rebar grid to help lay everything out made it SO much easier. Watch through for all the details!

00:00 Intro and DIY Pex Uncoiler
00:50 Manifold Sweeps
01:21 Radiant Tubing Layout in LoopCAD
02:21 Routing and Fastening Tubing
03:47 Pressurizing the Tubes
05:17 Avoiding Slab Control Joints
06:19 Why on rebar instead of staple down?
07:09 Epic Outro

If you’re new here, WELCOME 👋 We have an entire playlist on our house project thus far so you can easily binge watch those and catch up to where we are now!

⬇️ LINK TO HOUSE BUILD PLAYLIST:

Interested in seeing the exact cost details and where we bought everything for our radiant heat floor system? We have the spreadsheet available on our website! ⬇

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📸 Camera Gear ⬇️


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ABOUT US: We are Alex and Elaina, a couple in our 20s who are currently living on the 3-acre farm in southern Pennsylvania where Alex grew up. We have a garden, backyard chickens, and build or fix anything that we need to. We still work corporate day jobs, but are working to eventually leave the 9-5 lifestyle in favor of a self-built, debt-free, homestead on 6 acres nearby.

We upload a YouTube video every Saturday night at 7️⃣pm EST, and post daily on Instagram!

COME SAY HI 🙂

*DISCLAIMER: Links included in this description may be affiliate links. If you purchase a product with these links, we may receive a small commission at no additional cost to you! Thank you for supporting our channel ☺️

#building #foundation #selfbuild

[MasonDixonAcres]

Interested in seeing the exact cost details and where we bought everything for our radiant heat floor system? We have the spreadsheet available on our website! ⬇

[metalrooves]

This guy has no time-waster small talk, he taught me so quick where to put it height-wise in the slab, the grade, red, and makes it all seem easy.

[johnnythorn]

Above average delineation of essential issues to instal radiant floor system. Highlights of presentation: making a tubing holder to assist with unrolling of cumbersome roll of pex tubing, description of advantages of placing pex towards upper level of slab, guidance of making manifold to
pressurize tubing at 60# by using pex Ts, clever tip about lowering pex where control cuts in concrete are planned, and finally... excellent pacing and videoing of project. Touché and thank you. Johnny T.

[bpdp]

LoopCAD for the win! Anyone doing a system on their own should be using it.

[brianroda]

Great aerial shots. Also loved that you included the engineering "why" behind the center of the slab position for the tubing.

[DatasCience-po]

excellent worker, research, product, install & vid.

[cnettrouer]

Nice attention to detail. I like your technique of using scrap pex pieces to ensure the lines are recessed below the saw cuts.

[widehotep]

I recently installed pex radiant heat tubes to go at the bottom of a concrete slab. It was much faster to buy a 1/2 inch tube stapler and attach the tubes directly to the foam, then place the rebar grid on top of this. Also, by putting the tubes at the bottom of the slab below the rebar grid, you avoid the chance of hitting the tubes with a nail or saw cut.

The tube stapler and staples added about $450 to the cost ($300 stapler + $150 staples), but was super convenient. With two men working it took 5.5 hours to install about 1300 feet of tube for a 1, 680 sq. ft. house. There were also about 10 hours of prep and clean up time, such as designing the circuits with loopcad, designing and building the junction area for tubes, shopping for and buying supplies, pressure testing tubes before install, running around, etc.

[WildWestTrail]

your research for this video is insane.

[JoZell]

Let’s get some love for the pex-uncoiler

[annettehough]

I usually try to say something witty, but today I’m just going to tell you that I’m proud of both of you for working so diligently on your dreams.
Okay, I can’t help myself … pull your pants up Alex! 🙄🙄 I love that you don’t take yourself too seriously.

[BenKlassen]

I'm at the planning stage for a similar radiant-heated slab-on-grade build and this information and video of the installation process is very helpful and valuable. I will be following the project closely. Thank you very much. You're making the daunting process seem doable. Cheers.

[wazirhazratalli]

I am loving this project, I am following it to do my own construction. So, I am ready for the your slab pour so I can learn what to do and what not to do.

[MaxMakerChannel]

Thank you for this video! I am installing my radiant system in 2 weeks and this gives me a good idea on what to expect. I use 20mm tubing, so 16mm inside diameter. What is your inside diameter?

[martinheatingcoolingmartin]

Thanks man I found it I appreciate it. Thank you for the video.

[skylerslideways]

Love you videos! Just starting this whole process my self and is really encouraging to see you two basically doing it Lol which is what we're doing as well. As my building progresses I'm making my way through your videos and find all very helpful! Thank you, cheers.

[hansshaffer]

Great video! Thank you for all the explanations for the choices you made. Question- with your tubing closer to the surface of the slab, what have you done to ensure that you don't penetrate the pex when you anchor down the bottom member of your interior walls?

[sweatequity]

How did you handle interior wall bottom plates? These are typically glued and nailed to the concrete. Did you consider the nails hitting your pex lines?

[miroslavivanisevic]

Could you describe your design process? Did you use "rules of thumb" provided by Radiantec or did you go with all the fancy inputs LoopCad is asking for.

[bluegorillacookies]

I learned a lot, thanks! Looks fantastic!