22 Jun 2008

Make Water at Home!

"The XZIEX Machine creates clean, fresh water out of thin air by extracting water from the humidity found naturally." In other words, it's a de-humidifier. But wait -- is it economical? The FAQ says "Depending on local electricity costs, a gallon of XZIEX™ water costs about 10 cents to produce." Note that desalination costs about $1/m^3, i.e., about 0.4 cents/gallon. The XZIEX is thus 25 times more expensive than desal water and infinitely more expensive than natural water. Of course, you don't need pipes to bring XZIEX-water to your house, so this product will appeal to people in places that have no water on the ground, lots of water in the air, and cheap energy. (I think that place appeared in the last Star Wars.)

Bottom Line: This SUV-in-disguise deserves to die. Better to buy Fiji water -- at least you are helping photogenic people in a far-away place...


  1. hi David,
    I wonder if you could elaborate on this a bit. Imagine you could go to Darfur and deploy a solar panel to power this machine. Don't you think it would provide water to those who need it in a way that is more efficient than desalination or shipments of Fiji bottled water? What I naively find appealing about extracting water from the atmosphere is that it can be done in a decentralized fashion. But I am not knowledgeable enough to know if enough moisture can be assumed to be present in most places and if energy requirements for this scheme can also be satisfied in a decentralized fashion (my solar panel example above). could you educate us with some quantitative analysis? Thanks, stefano

  2. Hi Stefano,

    I made fun of this machine because it's meant to be used at home, where better alternatives exist. I completely agree that some parts of the world could benefit from decetralized water supplies, but another part of me wonders why anyone would want to move to a place that lacks water -- except for a machine. I think that this application (and I am pretty sure that industrial size portable desal machines/dehumidifiers exist) is really only attractive to the military and/or SUV-vanity crowd.

    It's just not sustainable to live where there is "no" water.

  3. This system has great potential to reduce water usage and septic output. Its cost benefits are unimaginable to the homeowner who would rather not pay $300-400 per month to have septic waste hauled away. Why its taking these guys so long to bring a product to market baffles me.

  4. The sources of our water are becoming increasingly dubious - hence the need for this amazing advancement in technology!!!
    -lon opalcliffs.org


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