Internetworkers: http://www.ibiblio.org/internetworkers/

[Scott Lundgren <internetworkers AT capitalfellow.com>]

I don't need a water heater right now but I'd never heard of such a  
thing and read through the site. Of course being the vendor's website  
they don't mention the down sides of this approach. Does anyone know  
why one wouldn't want this design ?

> Think about a tankless water heater.  They don't use up a lot of power
> keeping water hot when you're not using it.  See, e.g.,
> http://www.gotankless.com/