Heat-Releasing Walls
To keep a room cool, just let the walls melt. That's the trick with National Gypsum's Thermalcore, wall panels that absorb and release heat to maintain a comfortable ambient temperature without air-conditioning. At the core of each panel are paraffin-wax capsules made by BASF. When the temperature climbs above 73 degrees, the paraffin melts, drawing in heat and slowing the rise -- much as a melting ice cube "absorbs" the heat of warm water to cool it. If the room dips below 73 degrees, the wax turns to a solid, releasing the heat it absorbed earlier.
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Author: Rachel Arndt
