The water heater, a 10 gallon Rheem, and showerhead assembly has been installed. The water heater runs on 120 VAC. While a DC model would have been preferred, the general quality of such specialty appliances is often questionable (as are the inflated price tags.) The 20 amp outlet dedicated to the heater is controlled by a switch. This allows the heater to be used intermittently as we will only be heating 10 gallons of water per day.
You probably noticed that the showerhead assembly is missing an important part: the showerhead. This won't be installed for a few more weeks because we'll be reusing the one we currently have in the house—a HighSierra low-flow non-aerating nozzle that delivers only 1.5 gallons per minute. We have had this showerhead for a while now and really like it. It's well built, can't clog from mineral build-up and feels like a conventional 2.5 GPM head.
You might be interested what I posted a while back about those heat exchangers for the water line. You could always retrofit it, later, to, to free up some electricity. http://towardsabettertinyhouse.wordpress.com/2010/08/04/hot-water-heat-exchangers/
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