solar energy heater -Solar Air Heater! – The “Screen Absorber” Solar Air Heater! – Easy DIY (full instructions)

January 16, 2015 – 3:29 am

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  1. 25 Responses to “solar energy heater -Solar Air Heater! – The “Screen Absorber” Solar Air Heater! – Easy DIY (full instructions)”

  2. This looks like an excellent off the grid heating solution. I like the
    construction of this over the steel can version and am looking forward to
    your performance comparison. One quick question; have you experimented with
    using some form of insulation for the exhaust vent? It seems like a
    potential heat loss area. Thanks for this and all of your other great

    By Jason Martin on Jan 16, 2015

  3. you could even use this to make a solar A/C unit… make a duct close to
    the ceiling and feed it into the “inlet” side, make a simple one way check
    valve so air can only be pushed into the unit and let the sun heat it up
    and create a draft sucking the warm air near the ceiling right out. the
    cooler air can be vented in from the basement AND if you want to take the
    warm air outlet and pipe it into a 55 gallon drum of cold water. you’d have
    to crunch a few numbers to figure out how warm the water would get but you
    could also double this as a hot water heater if done properly… and come
    winter time when you wanted heat you could simply flip the unit around and
    plug into the outlet side… the only downside is that you need to live
    somewhere that gets sun all the time… and it wouldn’t be effective enough
    for use in northern regions where there’s usually heavy cloud cover in the
    colder season which pretty much negates the whole point of the project, but
    i do know that it gets to freezing temps in the desert some times.

    By Quantum Uncertanty Workshop on Jan 16, 2015

  4. Wish I had one. You should sell them. 

    By oddjob428 on Jan 16, 2015

  5. Looks good. Nice job!

    By off grid kid on Jan 16, 2015

  6. Will be quite interested to see the comparison of the two type of solar
    heaters! Design and materials with high heat transfer coefficients
    definitely increase the output. I might even try putting small drill holes
    in the bottom of the inner wood frame to increase flow to see what would

    By Diana Reiss on Jan 16, 2015

  7. Man this is super nice, this would work great in a tiny house, or small RV.
    Defiantly going to file this one for a future project man.
    Thanks for sharing!

    Gotta love those 19.99 harbor freight screw guns have one myself.

    By tryin2lhard on Jan 16, 2015

  8. does it make that much difference of using gloss black or flat black? I
    used the gloss black I had laying around. Do you sell the solar panels?

    By Kevin Jaynes on Jan 16, 2015

  9. Great video what was the comparison of the two type of solar heaters?
    Thanks Steve

    By Steves Beez on Jan 16, 2015

  10. have you made the video yet of comparing the two temps? one from the can
    other from the screen.

    would it work to just fill the inside with black painted rocks?

    By John Griner on Jan 16, 2015

  11. I am about to put one of these together and curious about connecting one
    up to a cold frame garden box. I guess just direct the vent from the top
    to a cold frame next to it and have it end up buried in some stones
    (thermal mass) Would be great to add a thermostat for when the temp gets
    too warm inside…. Also trying to figure out a way to place the who unit
    INSIDE the cold frame as to not heat unconditioned air… Would love any
    thoughts you guys might have… 

    By Eric Stonebraker on Jan 16, 2015

  12. I really like your videos,. Keep them coming.

    By Doublenotminer on Jan 16, 2015

  13. would it help to use some thing like tin , painted black for the back?

    By theoldmanvn66 on Jan 16, 2015

  14. Nice Mate! I do have a couple of suggestions as I want to build one of
    these for my greenhouse. I love the screen idea by the way. Have you
    thought about positioning the fan on the intake so the heat coming out
    doesn’t hurt the fan? Also if you tilt your screen within the box so that
    all air must go through the screen verses just over it, it might even get
    the heat up even more. Nice job and video steps to build. Thanks

    By D Holtman on Jan 16, 2015

  15. I enjoy your approach to creating useful energy saving devices and I share
    your sense of inventiveness with similar projects of my own. I thought I’d
    maybe add to your screen concept by suggesting the use of black aluminum
    soffit material instead of the mesh material. It is rigid, easy to work
    with and will reach temperatures of 150+ degrees in only a few minutes of
    exposure to sunlight. it also weighs next to nothing and is very cheap and
    readily available. it does not need the internal frame so it saves on
    material costs too.
    Keep up the good work and thx for sharing

    By Ron Rattink on Jan 16, 2015

  16. Great— waiting on your comparison— Till I build one !!!

    By Terry O'Rourke on Jan 16, 2015

  17. Install a sealed 12-v battery in the circuit. the solar cell will charge
    the battery plus run the fan. The battery will keep the fan going all
    night. I’ve seen these with lava rocks inside that’ll store heat and slowly
    release it all night.

    By Sporty Tone on Jan 16, 2015

  18. You complete some really cool projects. I want to build some of these for
    a cold region.
    Nice editing too.

    By Tree Fresh4 on Jan 16, 2015

  19. Awesome project!

    By Erva Blue on Jan 16, 2015

  20. Do you think if you painted the entire enclosure black that it would
    facilitate more heat?
    I know with the cardboard sides they are there to insulate from outside
    temps, but if the outside is absorbing the rays as well the insulation
    barriers won’t have to compensate as much.
    Just a thought.

    By Mike95DSM on Jan 16, 2015

  21. How or you able to run the fan without a capacitor .
    I have try that and I can not without a capacitor .?

    By hawk1481 on Jan 16, 2015

  22. I can’t wait to see the comparison. I’m thinking the can version will
    produce more heat but not sure if adds enough to make it worth doing over
    the screen version. Thanks for the vid(s).

    By Chris Elliott on Jan 16, 2015

  23. Doing some woodwork in my living room, on the carpet! Yeaaah! I would love
    to do that, but my wife would kill me!

    You’re a lucky man!

    Good job! thx for sharing!

    By VederchiHarry on Jan 16, 2015

  24. excellent, but would adding more screen inside the screen collector make it
    more effective? maybe a couple more layers inside the frame to capture even
    more of the sunlight on the more porous and thus more conductive screen
    than it going to the back of the box, since it’s only wood? also, what
    about even adding more screen to the back for the same reason?

    By SirLobsterman on Jan 16, 2015

  25. do you ever just build these things for other people?

    By emailgroupie on Jan 16, 2015

  26. Nice Work… it is people like you that inspire me to go and create a new
    life. Thank You !!!

    By Al Heath on Jan 16, 2015

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