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Published on April 30th, 2014 | By: Jessica McMathis


All natural A/C: Cold Pot combines clay and cooling power of evaporation to change water to cold air

Published on April 30th, 2014 | By: Jessica McMathis


The Cold Pot, designed by Thibault Faverie, takes terra-cotta to the next level by combining clay and the cooling power of evaporation to create an all-natural air conditioner. Credit: Thibault Faverie.


From the oh-so-hot PowerPot to its cooler counterparts, pots are having the best year ever. (An update and congratulations are in order: During the April 11 episode of ABC’s “Shark Tank,” the guys from Power Practical did, indeed, score a business deal with “Tank” tycoon and Dallas Mavericks owner Mark Cuban.)


The Cold Pot, created by Swiss designer Thibault Faverie, is seemingly like any other terracotta flower pot—key word “seemingly.”


Inspired by a more natural way to lower air temps (i.e., evaporation), according to CNET, Cold Pot’s simple design disguises an “internal aluminum radiator system and a blower to circulate air.” In other words, this isn’t your mother’s terracotta. Rather, it’s an all natural air conditioner that combines clay and the cooling power of evaporation to change water into circulating cold air.


“Based on the ‘bio air-conditioning’, the porous terracotta surface acts as a heat exchange; it absorbs water from the inside and sends it to the outer surface,” Faverie writes on his website. “On contact with air, the water evaporates. The change from a liquid state to a gaseous one results in the cooling of the object and consequently the inner aluminum pipe, where air circulates.”


The low-tech yet extra-cool Cold Pot, disassembled. Credit: Thibault Faverie.


This illustration shows how Cold Pot creates cold air. Credit: Thibault Faverie.


This technical drawing shows how the simple yet sophisticated terracotta pot is put together. Credit: Thibault Faverie.


A topless Cold Pot shows the internal cooling mechanism. Credit: Thibault Faverie.


Designboom reports that low-tech Cold Pot is also low maintenance, requiring a mere half-gallon of water to cool the air up to 10°C/18°F. As a result, it’s an ideal solution for portable (and small-space) cooling.


For some extra cool reading, check out this sustainable and slick clay refrigerator with a double-wall design that keeps food fresh when filled with water.



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2 Responses to All natural A/C: Cold Pot combines clay and cooling power of evaporation to change water to cold air

  1. Jessica McMathis says:

    Keith: Details on Cold Pot are few and far between. I’d suggest contacting its designer, Thibault Faverie, who can provide more information on its inner workings, performance, and his plans for production. You can contact him at thibaultfaverie@gmail.com or +1 415 680 7272. Thanks for reading and commenting.

  2. Keith Humfeld says:

    How long will 1/2 gal of water allow this AC to run?
    Does the temperature difference decrease as the water level goes down?
    Is the evaporation rate and hence temperature difference lower in humid locations?

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