[RE-wrenches] On demand Electric with pre heated water

[Lee Bristol]

Karl,

I have a SEISCO Model RA-22 (22 KW, 75,000 BTU, 4 chambers) which is my
backup to a solar DHW system using 16 Sunda evacuated tubes and 80 gallon
storage tank.  I turn off the backup in mid April and turn it back on in
October.  The on demand takes two 240 volt circuits rated at 50 amps each so
it is a hog when it runs but I have been happy with it.

Lee

On Mon, Feb 9, 2009 at 6:54 PM, Kurt Albershardt <info at es-ee.com> wrote:

> On 2/9/09 12:24 PM, Karl Schwingel wrote:
>
>> Have any of you experience with on demand electric water heaters?
>>
> At the recommendation of someone on this list a few years back, we
> purchased a Stiebel-Eltron Tempra 36 for a project.  It seems quite happy
> with preheated water and is nicely engineered.
>
> --
> Lee Bristol
> NABCEP Certified Solar Designer/Installer
>
> Chief Technology Officer
> Standard Solar, Inc.
> 202 Perry Parkway, #7
> Gaithersburg, MD 20877
> (301) 944-5105
> (240) 479-1510 (c)
> www.standardsolar.com
>
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