Monday, October 15, 2018


January 25, 2012 by  
Filed under Guest Articles on Low Cost Heating

FIGHT HIGH HEATING OIL prices and allow to save money for other things like paying your mortgage or refinancing your home. Hope this helps:-) Note: Look T THE VIDEO RESPONSES THEY ARE VERY GOOD! This is a prototype easy to build rooftop forced air heater that produces 45 degree increases at a high CFM CFPM rate. This one is made out of cardboard. A real one can be made out of weather proof material COROPLAST. The name Coroplast applies to a wide range of extruded corrugated plastic sheet products based on polypropylene copolymers. The natural polymer is chemically inert and is generally considered non-toxic and safe for use in contact with food. The base resin meets FDA requirements as listed in Food Additive Regulation Title 21, Section 177.1520(c), Item 1.1, covering food contact uses.
Video Rating: 4 / 5

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  1. TheRealXesc says:

    LOL, are you saying that politicians and election campaigns are nothing but hot air anyways? :) )

    This is awesome, Dan and Denise, I like your ideas! :) )

  2. 67tr876 says:

    You do know that its only number 2 heating old that most home’s use and its a lot but for buildings I know that number 4 and number 6 are up to 80 cent a gallon number 6 a year back was only 63 cent but number 4 and 6 burn dirty so you will see black smoke when you first start you’re boiler up. NO HOME SHOULD USE NUMBER 4 OR 6. Its not for you or your units

  3. GamelsmurfXXX says:

    Chk the solarventi allredy uses ure ides , and its behind a glas board and uses a solar driwe fan at back side is used hole and filtration than one hole in wall too press in hot air….

  4. GamelsmurfXXX says:

    hahahaha one great miss the vacuum cleaner adds heat iff im not wrong,,, engine cool off?

  5. Martaan66 says:

    Corrugated plastic is available in several thicknesses. It looks like you are using the cheapest stuff. There also is a product that is approx. 1/2″ thick corrugated plastic with an aluminum facing. The corrugated plastic has larger channels. This product is also available in 10′ sheets. It’s called alumacorr. Quite rigid. It is mostly a sign product. Your project is very interesting.

  6. thinkfoururself says:

    Vote for DAN!!!

  7. interactwithchange says:

    Does anyone knows of any safe chemicals that heat up to 175+ degrees when motion is applied. If ammonia, sulfur dioxide, and non-halogenated hydrocarbons such as methane can be used as refrigerants when motion is applied, what chemicals can be used for heat when motion is applied? Contact RF at

  8. 1foxtrot70 says:

    If you took a sheet of corrugated steel and then laid a flat sheet of steel on it a “spot weld roller” could be fashioned. A wheel rolling in the trough of the corrugation and a second wheel on the back of the flat sheet would press the sheets together. With a ground applied to the sheets and a welding voltage passed thru the wheels a welded seam would be made. The assembled panel would gather more heat especially if painted flat black and would be VERY durable.

  9. GILLEBRATH says:

    looks like you have a lot of fun dan,at least it gets people thinking green and you get to impress your good looking woman, good stuff !!!

  10. 1971mgb says:

    Why not use black pvc piping cut down a scribed line mount the board
    pvc cement an intake manifold tube on the bottom a hot air exhaust tube out the top and silicon glue glass panes to the front and back.
    Seems faster, easier to construct, and uses the power of greenhouse collection to capture more heat.
    Love your videos. Keep up the great work.

  11. nwcove says:

    @GREENPOWERSCIENCE ive read that installing a passive hot air furnace on the inside of your home gives you no thermal advantage? is this true? if so…….why?

    thanks…..and keep up the great work!

  12. hybridracers says:

    Dan, do you have any tests or any links to tests in regards to efficiency of various “forced air” heaters? Pipes, coroplast (corrugated) cans and the like? Id like to build a couple of these things but I really cant afford to do experiments that have already been done. I know this is free energy, we should all be using it.

  13. juicyjuicejosh says:

    @anatrakya Why would he go through the trouble of making all this If it’s just the shop vac? lol.. I’m just curious as to why people such as yourself; make stupid remarks about everything?

  14. 215alessio says:

    there arso alumium panels with the same texture, but they are very hard to find
    Plastic will warp over time I guess, but I can be wrong

  15. 215alessio says:

    when it start to smell burny it means your carton is carbonizing?
    Nah I will use a a metal board

  16. 1foxtrot70 says:

    @GREENPOWERSCIENCE – Dan, I just checked with a local plastics supplier here in Des Moines, Regal Plastics and a 4′x8′ sheet of Black Coroplast is about $19.

  17. 1foxtrot70 says:

    @GREENPOWERSCIENCE – Dan – I like the idea of retasking the large political signs. Hmm…finally some of the hot air that goes to Washington doing some work for a change

  18. 1foxtrot70 says:

    Dan – I like the idea of retasking the large political signs. Hmm…finally some of the hot air that goes to Washington doing some work for a change.

  19. WillBilly425 says:

    The amount of energy showered upon the earth from the sun, even on cloudy days, is pretty amazing.

  20. sc00b3rt says:

    This was inexpensive, didn’t require fancy expensive tools, and we didn’t have to drill holes in our homes walls. At night we simply turned off the fan (some didn’t have them) and closed our drapes. Any cold air seepage that occurred would have happened anyway with the existing windows. When the hotter months started to happen, we just simply pulled the units out and stored them in our garage. When cold weather returned, we pulled them out and put them back in.

  21. sc00b3rt says:

    We made two holes, one at the top (hot air outlet) and one at the bottom (cold air intake). Hot air rises naturally, so having a fan is optional. We found that having a fan at either the top pulling air, or one at the bottom pushing air made for a higher rate of airflow into the space. However, even without a fan the air still moved into the living area. Our box with cans, got up to 134F. CONT>

  22. sc00b3rt says:

    We researched a Trombe Wall, along with the popcan designs. We could not put holes in our walls, or put anything on the exterior of our home. So we decided that we would use some foam insulation, and build something that would slide into our already existing windows from the inside of the house. Our windows are double pane, and have to sections. One that moves, and another that is stationary. We built the foam boxes to fit inside the stationary part. CONT>

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