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Hamada’s Got You in Hot Water
When you’ve got disaster, you need heat. The Onsui (hot water) works for disaster area victims by generating heat without fire. Pour your water in the Onsui, wait a bit, pour the hot water out. Make some food, eat some beans, some crackers, and fix that disaster up.
Each Onsui has a heat cartridge that makes the water hot once it’s in the container. Water can be boiled in the container by “the hydration of water and quicklime (calcium oxide.)”
And, of course, it’s a nice jug too.
Designer: Kiyoe Hamada
7 Comments »
Saltynay says
Good idea not particularly compact if it boils water then could second as purifying unit. Would the catridges be cheap and replaceable? Would the item be easy to dispose of in an environmentally friendly manner? Perhaps if the jug was collapsible like a radio aerial it would be more transport friendly. Good idea I like it
zippyflounder says
It likely uses the calcium and water reaction, wich can be pretty energetic and one shot. The down side is with that system is packaging, if its compremised and any water gets into the “stick” its going to react period.
Michman says
Was thinking the same thing as Saltynay, one of the first things needed in a disaster often is fresh water, This could be modified easily to allow for this. Like the concept.
zippyflounder says
FWIW you can buy the calcium heaters off the shelf, put them in a mettal pot and your good to go.
Bep says
I am working on a similar project right now.
Can’t disclose more on that one right now, might show up on yanko though soon.
There are some issues with this design. For one, who wants quicklime in his hot drink?
For the reaction, which is the same as in MRE packs, used by the army, water is needed. In this case, the water to kick of the reaction is the water that is supposed to “cook your beans”.
Also, I highly doubt that the reaction is hot enough to actually “cook” the water. My research has shown that the temperature tops off at about 180 degrees Fahrenheit (water boils at 212).
However, interesting concept, but to be honest, it’s just the Jasper Morrison edition of your good ol’ MRE pack.
Henrique Staino says
Has anyone everasked a disaster victim what’s thing a person misses the most in that kind of situation?
I’ll bet it’s not warm water.
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