passive solar energy -Make A Passive Solar Window Heater For Under Two Bucks

December 13, 2013 – 3:23 am

You can make a window ** passive solar heating materials you may have around the house. Read all the details: http://www.theoffgridproject.com/How-T …

** There was a big debate about how Solr heating panels work or even if they work at all. I’m here to tell you …. they do! Video Rating: 5 / 5

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  1. 26 Responses to “passive solar energy -Make A Passive Solar Window Heater For Under Two Bucks”

  2. Agreed. Even black curtains will collect and disseminate the light turned
    to heat. To get more heat one can put reflectors around the outside of the
    window and angle them to shine more light into the window. There could be
    increased glare but a dark colored open weave curtain would stop that.

    By dragonlaughing on Dec 13, 2013

  3. Nice one, just make sure the trailer is well insulated and no air gaps
    apart from venting so as to maintain the warmth. It’s all coming together
    slowly mate, well done. Cheers Lee in Australia

    By bitto65 on Dec 13, 2013

  4. Interesting. Never heard of that. Thanks.

    By The Do It Yourself World on Dec 13, 2013

  5. My hands are numb right now. I ran out of firewood again and its cold in
    here. Its a wet cold too. Yuck.

    By The Do It Yourself World on Dec 13, 2013

  6. I know how you feel… Be glad you don’t have the same wet cold as when we
    get it here in Louisiana. We get ice on the cars at around 40-45(making it
    very thick when it gets below that). I hope you get some more sun tomorrow
    and a break in the cold before the next front hits.

    By Barterninja on Dec 13, 2013

  7. When summer makes it and it gets too hot, flip that around to reflect the
    heat back outside. Good thinking, let us kow how it works.

    By redscynder on Dec 13, 2013

  8. Thank you very much. See you there tonight.

    By The Do It Yourself World on Dec 13, 2013

  9. I have so many different knives, I just grab what is first at hand.

    By The Do It Yourself World on Dec 13, 2013

  10. These videos are great, they make me think. I know cardboard is plentiful,
    wouldn’t a thin piece of aluminum painted black on one side (facing the
    radiant heat) be more efficient than having a piece of cardboard, which is
    an insulator, in between?

    By Spelligmac on Dec 13, 2013

  11. Thanks. Anything painted black will work actually. Its the black that
    absorbs the heat. Use whatever materials you have on hand. I use the
    aluminum foil because it can take the heat.

    By The Do It Yourself World on Dec 13, 2013

  12. Here in Texas it’s 93 degrees

    By Jejh4lom on Dec 13, 2013

  13. You must have a lot of sun then. Here it is hit and miss.

    By The Do It Yourself World on Dec 13, 2013

  14. Wow, guess she did a good job.

    By The Do It Yourself World on Dec 13, 2013

  15. so is the idea that the warmth needs a black medium to collect on, and that
    increases the absorption? And the foil because it is a metal that is heat
    conductive? I know your measure is cost effective but could you take older
    metal blinds paint it black, remove the top strip or two and achieve the
    same effect? Would it be as good as the soda can heaters you see in the
    videos that go outside with wholes in the walls. Food for thought.

    By flatop08 on Dec 13, 2013

  16. You might consider trying Car Sun shades. You can often get them for a
    dollar at the dollar store. You can paint one side black and when you need
    things to heat up you put the black towards the window. when you need
    things to cool down you put the silver side against the window (no gap).

    By Rick A on Dec 13, 2013

  17. Thanks for watching.

    By The Do It Yourself World on Dec 13, 2013

  18. Yes, you are correct. The black surface absorbs the suns rays, heating it
    up. The metal conducts heat nicely. Yes, metal blinds would be perfect. Not
    sure about the soda can heaters. It all depends on surface area. The more
    surface area, the more heat output. But the can heaters are much more work
    and I like my simple heaters. Plus mine is easier to store in summer when
    its not needed. Folds flat and goes away behind a shelf or under the sofa.

    By The Do It Yourself World on Dec 13, 2013

  19. Yes, I have one now. But sadly the trees have leaves now and I get no sun
    in the window at all anymore until a certain time in the afternoon. I will
    try to catch it some time and show people. It does kick out quite a bit of
    heat though.

    By The Do It Yourself World on Dec 13, 2013

  20. This is not a good design. The heat gets into the camper before the al foil
    is placed there. The Al foil actually reflects some of the light that
    previously was getting into the camper that previously was heating up the
    camper. It concentrates the heat but there is actually less heat in the
    camper than before the project. Plus, the view is gone! The Al foil may
    help at night when it is cold by reflecting some of the heat back into the
    camper. But overall, a poor design that loses heat.

    By Jim Crawford on Dec 13, 2013

  21. I worry more about summer heat that is coming then worry about the cold is
    almost summer time.

    By Michael Johnson on Dec 13, 2013

  22. Troy, you will get more solar gain from letting the light into your living
    space. Now a solar passive heater outside vented into your living space and
    well sealed you give you both direct sunlight solar gain and also passive
    solar gain from the heater.

    By handyandyruskington on Dec 13, 2013

  23. cool I have never seen that kind of knife looked awfully like scissors! :-)

    By rob roberts on Dec 13, 2013

  24. That is the correct way. I have the silver side facing into my camper to
    reflect the heat energy back inside. It is an optional add on.

    By The Do It Yourself World on Dec 13, 2013

  25. That is too hot for me

    By The Do It Yourself World on Dec 13, 2013

  26. I’ve had better heat by making the solar facing side black in color.

    By rigelthe16th on Dec 13, 2013

  27. Thanks a lot, great video about heat and various materials. I really needed
    that info for a project that I am building!, a solar oven.

    By Roger Hill on Dec 13, 2013

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