DIY Solar Water Heater! The CPVC “Drip-Edge” Solar Water Heater! – New Design/Exp.(CPVC+Metal)

DIY Solar Water Heater! This one is made using CPVC pipe (*or copper) and is backed with metal stats for maximum temps. video includes full build plus temp tests (before and after the build). with air temp about 50F (10C) water temps ranged from 110-160F (43-71C). *depending on water flow rate, how long it’s run, outdoor temps, intensity of the sun etc. a few stats: frame is made from 1×3.lumber, back is ¼” plywood and glass support “dowels” are 3/8” square. Glass is 28” by 32”. Metal slats are 1 ½” by 1 ½” Steel Drip-Edge Roof Flashing (sold in 10’ lengths – about $4 each). CPVC pipe is ½”. coupler pieces… 18 tees, 4 elbows and a ½” adapter *w/pvc garden hose adapter at the inlet. remember to use ‘CPVC’ pipe cement. Collector can be made with either cpvc or copper. cpvc is light, strong, and flexible, is rated for hot and cold potable water systems (up to 180F) and has lifespan of 50-75 years. Note: the water won’t get that hot. *even my copper pipe water heaters top out at 175F in the summer temps of 110F. if you like the vid. please rate sub and share.





  • Will plexiglass work instead of regular glass?

  • pvc and pvc have insulative properties. would making the "radiator" out of copper have been a better idea as far as absorbing heat. juat curious.

  • This is a great design for simplicity. I might try this myself and see how it performs in our English meagre sunshine.

  • desertsun02: Great work and I like the ideas with your easy to follow method. I have only seen this and one other vid, and checked your channel page for the install . I wonder if you just build these great projects and put them in storage since I haven't see any follow up on the application regarding this one and the solar air heater project, the two I've seen thus far.

  • How well does the water drain back? Concerns with freezing.

  • If I build one for my next cabin I'll build it bigger, paint just the pipe, leave the drip edge bare, and have the water cycle through an insulated (old water heater?)tank with a small recycling pump. I'm remembering an old solar hot water system I once had.

  • Very well done no BS intro music straight to the point and materials list very well presented!!

  • Another design could be to bring the cold water into the top.. Because cold water rises.. (Ponds freeze from the top down.. (Physics)) then trans verse back and forth with a slight slope down each run.(so in freezing temps, system can be drained, then out thebottom run…
    Just saying systems in cold climants need to be able to be drained..
    Or run on non freezable liquids…
    (I say such a design on another channel)
    Plus longer time in yhe heat exchange csn drive temps up quit a bit

  • I like this. It would have been good to know the temperature of the water going in for comparison.

  • I pin pointed it..i been watching you since about here… ..and have appreciated you ever since…Thank You

  • So to continue are you using this to replace your water heater?

  • How well does this work compared to the copper circular heater?

  • How well does this type of thing work in say 20 degree weather? I have a sun room that is has electrical baseboard heat that I would like to replace those with PEX hose with 1 40-150 degree water if possible with a radiator and fan set up.

  • What happened to the one length of pipe. Looks like it warped. What caused that?

  • 👍
    Great if connect it auto SUN tracking…😉

  • This looks really great. Would you mind posting a little more data by doing a simple test run for us: Measure the solar collector's entering and leaving water temperatures and flow rate simultaneously after the collector has run for a few minutes and before collecting a water sample? Flow rate can be stated in how many seconds it takes to fill a one gallon bottle at the output while recording entering and leaving temperatures. Also post the final temperature of the hot water bottle to average any flow rate variations. This really would be a GREAT help for us. Thanks 🙂

  • I will put this to the test at my second home in goa salcette India I'm converting an old Indian style toilet and wash room into some thing a bit more western like a wet room for guests I will certainly let you know how it goes . Thank you for your tip

  • Would painting the glass black make it hotter or cooler inside?

  • I built one a few years ago that was 4'x8' . It worked too good . I wound up replacing the pvc with 1/2" copper pipe after a month because it was getting too hot . I also used 1/2" foam board ins. with metal flashing on the inside of back board for heat reflector. I have to keep it tilted down from the sun so it doesn't boil the water .

  • Awesome concept…

    FYI I stopped using CPVC long ago as I found it to be very brittle after just a few years. Sure it's cheap and easy to work with but once it starts to become brittle there is no stopping the breakage… I just fear using it in this application would cause it to become brittle sooner…

    Apex is wonderful and costly, but it's able to expand 10X it's diameter. I don't think it's ever becomes brittle or has it broken a single time since I've been using it close to 15 years now. Again the Apex tubing is cheap, 100 ft is like 30 bucks, BUT and this is a huge BUT, the fittings and/or tools are pricey. Expect to drop upwards of a 100 bucks just on the Crimping tool and the Crimp Fittings are reasonable priced. Or you could use Shark Bite or what ever your area sells @6.00 bucks or more per fitting, elbows and tees and what not and ball valves are upwards of 15 bucks or more. Again Pricey but well worth the investment as they will last much longer than most humans will… LOL…

  • Great idea and implementation!

  • How about creating a vacuuming the box?

  • Thank you for the video, I am a America missionary living in the Philippines. From South Carolina. This will be a big help to us. I will double the size, should I go with larger PVC ?

  • Thank you. Very interesting. Good job. 🙂

  • Why not use copper pipe and go with all bends and if you control the in feed of water by slowing it down the temps get hotter it works as mine are great and supply me hot water even in January and Feb Also try insulting the back and sides with a Celetex board this helps as well

  • Very, very good.
    Now you need to make an insulated water tank to maintain the hot temperature for showers.

  • Looks nice to me just like you did with your evaporative coolers wouldn't copper tubing be better for holding the heat than PVC would probably cost a bit of money to purchase all that copper tubing and fittings

  • This is pretty awesome. I am however curious, wouldn't it have been more efficient to have all elbows rather than T fittings? Then you'd have one long continuous run of pipe rather than a bunch of short runs. I would imagine the water would reach much higher temps or if not higher temps possibly more consistent. I could be mistaken, as I say, just curious.

  • Hi – have you tested the water / PPM / to determine H20 – quality – nice video…thanks

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