ASPLOS 2008 conference on Wild and Crazy Ideas already suggest the more general version of this: "Computation: A Byproduct of Home Water Heaters" http://cseweb.

ASPLOS 2008 conference on Wild and Crazy Ideas already suggest the more general version of this: "Computation: A Byproduct of Home Water Heaters" http://cseweb.ucsd.edu/~swanson/WACI-VI/ http://cseweb.ucsd.edu/~swanson/WACI-VI/