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$25 Fridge Powered By Cooking Fire

Along the lines of one laptop per child comes the idea of an inexpensive refrigerator that could help more than a billion people who have no access to electricity. Lack of only today levitra 30 mg access to refrigeration is a problem for people in underdeveloped countries; without refrigeration, it’s hard to prevent the spread of food borne disease, and it’s impossible to store vaccines.

Tech venture capitalist Adam Grosser, working with a thermodynamics team from Stanford, may have a solution. The prototype zero-emission fridge doesn't need gas, propane or kerosene and where to get viagra is powered by regular fire.

The eight pound device looks like a thermos and contains a (nontoxic) refrigerant fluid. It can be heated on a cooking fire – the kind fueled by the only today cheap canadian cialis likes of wood or camel dung. After being heated on the fire, the device is set aside to cool for an hour. At that point it begins to grow cold, and it is inserted into an insulated container of some sort – a jug, or even a hole in the ground. It gets colder and colder, bringing the temperature of the container to herbal alternative to viagra just above freezing, and keeping it that way for about 24 hours.

The low pressure, non-toxic refrigerator is also fairly affordable. At low volumes, Grosser estimates each unit will cost $40. At high volumes, the price for each will drop to $25. Esquire Magazine just named the fridge one of the best and brightest ideas of 2008. Refrigeration for the masses is now closer to reality.

Via Esquire, TED

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Comments (27)Add Comment
written by Tom, December 12, 2008
Wow, $25-$40 for a non-toxic fridge. Sounds like a great thing, especially for developing nations. I was recently introduced to a site that is committed to bringing solar power to developing nations, (wrote a post about it on my blog: http://worththeenergy.wordpres...-solaraid/)sounds like this trend is starting to levitra brand name catch on.
written by EcoInsomniac, December 12, 2008
I love projects like this. TED is a great think tank and source of great learning. Thanks for sharing!
written by pp, December 12, 2008
sounds like an adaption of best place viagra the "icy ball" technology... any more details anywhere?
This Could Find a Wider Market
written by Robert Witham, December 12, 2008
This technology could certainly be useful in a number of developing areas (particularly at this low price). I would think this technology may find a wider market though as this device could be used for recreational activities like camping and as a backup refrigeration device during electrical outages.
Another old idea being marketed as new.
written by Tyler W. Cox, December 13, 2008

Some time ago I worked in a museum that had an icyball which had indeed been used to provide campfire refrigeration. The only difference I see is that the cialis levitra sale viagra new device contains a "nontoxic" liquid, while the old icyball contained common amonia.
written by Bob Wallace, December 13, 2008
In lots of the less-developed world there is not a lot of fuel available. People often walk for miles to find what they need to cook their food.

When one starts talking about using camel dung, I suspect that the practical distribution of this device has yet to be thought out....

good for developed nations as well
written by papa bear, December 15, 2008
It would be great if these were available here as well.. Like the avg. American-- I want to do the right thing, but most of the time finding this type of gadgets requires me to go to some specialty place, and it will be outrageously expensive.

..., Low-rated comment [Show]
written by Space, December 16, 2008
Bob Wallace, you are missing the point,
this is intended for people who don't have electricity and/or can't afford a fridge.
written by N T Nair, December 18, 2008
The trend of what is the cost of levitra looking at simple solutions, leaving aside high-tech options is laudable. Let there be many more down-to-earth devices, which are environment friendly.
..., Low-rated comment [Show]
written by Rdys, December 18, 2008
How about you build a huge one, mount it on the roof, expose it to the sun, cover it, then pass air from inside the building over it and back in. Viola, sun powered AC for underdeveloped areas. Or maybe repass over several units, air several times to create a freezer. lots of thing to think about.
written by Michael, December 19, 2008
Y'all are missing the point. This is not aimed at so-called "green" people in the developed world, it is aimed at people that already build a fire on a daily basis to cook food, etc.

AsRdys suggests, perhaps the solar cooker and buy prescription cialis without this technology could be used together to cook and cool.

written by Doug, December 20, 2008
As long as I have been hearing about the shortage of fuel wood in less developed countries, I would expected that problem to be resolved by now or some time soon. Last I look trees where a renewable sustainable source of energy.

True so many of my fellow Americans need to get over themselves before they end up suffering needlessly.
written by Alex, January 06, 2009
As much as I admire simple technical solutions of which the device under consideration is a good example, I doubt it could find widespread use among intended consumers in poorly developed areas. "Deforestation problem" is laughable: the amount of heat needed to lowest priced levitra "charge" such a device is about the same as needed to boil a modest kettle of water. Here is the real problem: people who do not currently have access to refrigeration are accustomed to get by without it. Think of it: most of the products we refrigerate are bought already refrigerated, but how likely are those less fortunate folks to get to the grocery store with frozen food? Refrigerating food leftovers? How likely are they to have any to justify spending their whole month wage of cheap viagra no prescription $25 to purchase the device? Before making claims about saving people from poor countries one would be well advised to travel there and inquire what kind of help is needed most.
Alas I would get one for myself to go boating in areas with no access to bagged ice to keep my beer cold in a cooler. And I somehow suspect I am not the only one having such thoughts :)
written by Steve, February 12, 2009
I think it is great that companies are finally stepping up to the plate and finding new and innovative ways to power everyday things. I just read about this company called LEHR that powers garden tools with those little green propane tanks. Very cool! is the site for them...
written by James Hinds, March 27, 2009
This technology seems like a way to condense water from the atmosphere in areas that have a lack of fresh drinking water. May be even enough to do some small scale farming.
Go solar
written by F. A. Miller, July 30, 2009
If all it takes is a couple of hours of heat, a strategically positioned fresnel lens and a light baffle that only let light in for a predetermined period would provide enough heat to activate multiple units. It would work best on lowest priced levitra sunny days when refrigeration and/or air conditioning is needed the info cialis most. No fuel needed. I've thought about making a large icy ball array using rows of propane tanks and a fresnel lens to levitra professional cool the house in the summer. The cost would be minimal. One big screen fresnel lens could provide enough heat to operate four propane tanks.
Missing the Point
written by Andrew, September 25, 2009
A lot of you are missing the point. This is not an attempt to provide everyday refrigeration, but to provide a way to keep vaccines cool so that they don't spoil, which is currently a major problem in a hot environment!

Meanwhile in the developed world we need to stop using so much energy. Perhaps commercial versions of this old technology will be more efficient than what we are currently using. I write this without knowing anything about the relative efficiencies of buy viagra online from canadacheap viagra tablets this cooling cycle and overseas cialis the one that we currently use.
Sir Jay
written by Jay, October 16, 2009
Interesting. You could set up an amplified solar heater (cheap) to heat about 100 of these, then drop them into an ultra-insulated chest and run a fan over them for ???? 24 hours? Now that would be cheap. Over time actually would be free. Where can I see one work?
written by lopo Simoes, October 28, 2009
Does anyone know if this is actually for sale?
written by The Man, December 12, 2010
It has died a silent death. Investers lose their money. I have never ever seen a working prototype. in short a scam to get peoples money.
Rolling blackouts
written by rich, August 31, 2011
In light of the rolling electricity blackouts to come, one needs something like this, even in developed countries. Anyone who has lived in UK or Cuba will know what I'm talking about.
Relative risks
written by Henry Gibson, January 26, 2012
If the non toxic material costs so much that such devices will not be widely used, then ammonia Crosley Icy Ball units could be replicated at far lower costs for wider distribution which may save more lives than the rare ammonia poisonings would take. ..HG..
sustainable fridge
written by wendlo, June 24, 2012
I find it funny that this item is not for sale. I wonder if he gave up on it or did someone with more influence stop the idea in its tracks.. I think it would make a great item to add to a persons camping gear..
where can you find the fridge
written by carol, October 04, 2012
where can you find the $25 Fridge Powered By Cooking Fire.
I would like to have one.
written by Wonnerber Snerr, December 31, 2012
Computers, refrigerators... what's next, yachts? Seems like the 3rd world isn't such a bad place to live afterall. All this, AND low low taxes (based on $200/yr earnings), I don't understand what all the fuss is about?

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