Cob Ener-Grid?

[Holly ;-D]

Speireag wrote:
> 
> Howdy.
> 
>     I am considering using Ener-Grid blocks for my stem wall,
> which will sit on four feet of crushed gravel.  Does anyone
> have any actual experience with this stuff?  For those who
> don't know, it's a recycled-styofoam-and-cement block, which
> you can stack together with rebar and minimal additional concrete.
> 
>     The blocks are 10 feet long, 15 inches high and either 8,
> 10 or 12 inches wide.  I figure to stack the 12-inchers 30 or
> 45 inches high (with all but 18 inches under grade).  I wouldn't
> have to insulate the foundation that way, and I'd use less
> concrete and recycle some styrofoam.
> 

How much does this stuff cost?

Holly ;-D