Passive Solar Air Heater Heating System Alternative Energy This is a video of the Passive Solar Heating System in use at http in Whitby, Ontario, Canada. It provides a great deal of heat, and the installer, Chris, will be making it more effecient by adding a second computer fan to push the warm air at the top, painting the inside better and taping the duct work. Also, the duct work will be directed into the office where the door can be closed and used in a smaller air mass. This kind of heater is ideal for urban survival and bugging in, since it requires no power input and is cheap and easy to make. It’s not just for strawbale, cob, cabins, cottages, earth ships or businesses. They can be installed on a home, and they look great when done right. Ragnar Benson would be proud. Visit our site at or call us at 905-666-2002.

25 Comments on "Passive Solar Air Heater Heating System Alternative Energy"

  1. queball147 | July 18, 2010 at 1:42 am |

    I would like to see what you have connected 1.12 please thank you

  2. WasHighPingDuck | July 18, 2010 at 1:57 am |

    This is fine but I believe that black floor covering inside in front of the window gives the same heat and you can see out the window.
    If you need more heat than a window I suggest a beer-horse (beer can 1 hp passive collector) outside between the windows.
    Black ceramic tile flooring (even better over concrete) will store a little heat even after the sun goes down and should make a good match for a beer-horse with it’s quick heat.
    Every little bit helps. 🙂

  3. garagecrap | July 18, 2010 at 2:08 am |

    I’ve made system like this and it worked ok but the biggest problem was there was no heat at night so I’ve scrapped it. But yes it works good in day time.

  4. mrbrendons | July 18, 2010 at 2:30 am |

    I would love to share mine but it is still a work in progress. My approach is this: My employer provides a lunch room and recycle bin for soda can. I take the recycle bin home and use a sideways battery operated can opener and pop the tops off some 130 cans (soon) currently I have some 110 cans finished. After popping the tops I tap holes to form a pi wheel type affect. This will slow thew air down and circulate it around the outside of the inner wall of all cans.

  5. envirosponsible | July 18, 2010 at 3:30 am |

    Great point. There may be some regulations on blocking windows. There were already bars on the window though. Perhaps they were a “no-no” too.

  6. envirosponsible | July 18, 2010 at 4:28 am |

    I don’t know if it is more efficient to have a fan than just let convection work. That’s a good question.

  7. How is it more effective running a fan than just backing the board a few inches back and letting convection work? Same about of heat/solar energy absorbed and releasted.

  8. Sylvia441 | July 18, 2010 at 5:04 am |

    wood has it’s place & we use it to heat our house which is off grid. Go to:”hawkhillfarmoffthegrid” to see it. Yea, it gets dusty, but that is what spring cleaning is all about

  9. Probably not legal to block off a window like that though UNLESS you can gain access to the outside through the window. Don’t think the city would like to see this type of blocked window…

  10. How simple, but effective. The bigger the window, the more heat. What I do not know is what type of glass is best for this type of set-up? Simple, uninsulated glass or? What if you have insulated, double pane windows? Would this still work?

  11. basilenglish | July 18, 2010 at 7:20 am |

    have you tried the soda pop can way, it sounds like its more efficient??

  12. envirosponsible | July 18, 2010 at 8:13 am |

    It’s foam insulation painted with black high heat barbeque paint. Share your project with us on video Hugo!

  13. TheDudeRulez09 | July 18, 2010 at 8:23 am |

    This augmentation is almost 100% more effective in this situation, as for the lighting yes I agree with you there, but this is a heating topic. Without thermal mass to store the heat then there is no way to absorb and keep it warm.

  14. TheDudeRulez09 | July 18, 2010 at 8:48 am |

    donepearce, i build these and other similar active solar pieces, i also build cob homes and other earthen solar mass homes, this is not ridiculous at all, the typical commercial building or home does not have the thermal mass needed to absorb the direct sun light and store it as heat to release into the building.

  15. hugoriba14 | July 18, 2010 at 9:13 am |

    Great video! I’m doing something like that but a litle bit smaller and portable for one or two windows here at home. It´s just an experience.
    Wat’s that black material in the absorber??
    Keep up the Good Work!
    Hugo – Portugal.

  16. envirosponsible | July 18, 2010 at 10:00 am |

    We put flaps on the inlets that would only allow air to enter. Did I explain that well? If not let me know and I’ll try to clarify.

  17. I made a solar heater during the summer and finally hooked it up yesterday. I also choose to use “heavy material” but that is not the issue I am having.
    The temp outside was 54 and sunny.
    The temp coming out of the upper port was at 82.
    I have no fans
    I was totally satisfied with my results until, the sun went down. I then had to stuff a rag in the lower port to prevent the cold air from rolling in as the “convection” had reversed. how do you keep the unit from cooling the inside at night?

  18. envirosponsible | July 18, 2010 at 10:21 am |

    I see that our conversation is going nowhere fast. Thanks for watching.

  19. donepearce | July 18, 2010 at 10:40 am |

    So leave the door open. Or switch rooms, of course.

  20. envirosponsible | July 18, 2010 at 11:22 am |

    You must have missed what I said in the video and in the comments. I’ve addressed this several times. I wasn’t using the room with the windows in it. I was using the room next to it, a room with no windows. Otherwise you’re absolutely right.

  21. donepearce | July 18, 2010 at 12:18 pm |

    To shut off a window for solar heating is just ridiculous. Far better to let the sun shine through the window and heat the room directly. That saves on lighting bills too. No; a solar heater must logically be sited where the solar power would otherwise be going to waste.

  22. Nature2Energydotcom | July 18, 2010 at 12:28 pm |

    That is so cool!

  23. CodeBandet | July 18, 2010 at 1:02 pm |

    Its not about the window. Its about the themal mass of the walls.

  24. ConditionRedDawn | July 18, 2010 at 1:35 pm |

    so how much heat can u produce in the winter time with a bright sun? how many would u need to warm a 15×15 room to 60 degrees.

  25. JustAn0bserver | July 18, 2010 at 2:23 pm |

    There are several Can heaters, Which one did you mimic??

    With my last heating bill off the charts, I’m going to have a solar alternative this Winter. Do you have any temperature examples, ( in fahrenheit please ) 32C means little to some of us.
    Good job

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