tankless electric water heater [RE-wrenches]

[Kurt Albershardt]

<x-flowed>
Your free subscription is supported by today's sponsor:
-------------------------------------------------------------------
Need a Laptop? Get a Sony Vaio Laptop Free!
http://click.topica.com/caadAcrbz8Qcsbz9JC9a/ProductTestPanel
-------------------------------------------------------------------

Thanks for all the responses, guys.




--On Tuesday, May 31, 2005 12:34 PM -0400 "Bill Loesch, Saint Louis Solar" <bill_loesch at compuserve.com> wrote:
>
> There are two major distinctions between all tankless electric
> manufacturers (and there are a _lot_ more elec tankless than gas tankless):
>
> Some of the manufacturers (like Eemax) use a bare wire immersed in the
> water flow to directly heat the water.
>
> Others (Redring, Stiebel Eltron) use a heating wire covered by a copper
> jacket.
>
> Probably not a lot of difference between the two techniques unless water
> scale becomes an issue. The bare wire sheds the scale much better than the
> jacketed wire.


Do you happen to know which category the Bosch units fall into?





> Kurt, you have not identified what you want to do with the water (sink,
> shower, washing machine, etc. which will determine flow rate) nor have you
> identified what the temperature rise you need for your climate. Both
> important considerations if you want to have satisfied hot water users when
> winter comes with a potential for much colder inlet water than sumertime
> inlet water temperatures.
>
> If you have limited electric capacity, the only real variable you have is
> flow reduction to give the heater the time necessary to heat during the
> colder winter months. I'm told that 1.3GPM showers exist, I have not yet
> experienced them.


This will need to handle a shower and a sink for a bathroom.



> Any room for a temperating tank ahead of the tankless? Solar assisted
> temperating tank?


It's one of about 105 bathrooms in the building, which is being renovated.  When it's complete, the south facing wall of the tower will be covered with hot water collectors and there will be two 1500-gallon storage tanks in the basement (one for DHW and one for radiant floor heat.)  Right now we just need to provide for the caretaker and an occasional guest.







.

Your free subscription is supported by today's sponsor:
-------------------------------------------------------------------
Buy Stocks and Index Funds for just $4 No Account or 
Investment Minimums and No Inactivity Fees Automatically 
invest weekly or monthly and build your future.
http://click.topica.com/caadAcmbz8Qcsbz9JC9f/Sharebuilder
-------------------------------------------------------------------

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://lists.topica.com/lists/RE-wrenches/read

List rules & etiquette: www.mrsharkey.com/wrenches/etiquette.php

Check out participant bios: www.mrsharkey.com/wrenches/

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com
--^----------------------------------------------------------------
This email was sent to: michael.welch at homepower.com

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9.bWljaGFl
Or send an email to: RE-wrenches-unsubscribe at topica.com

For Topica's complete suite of email marketing solutions visit:
http://www.topica.com/?p=TEXFOOTER
--^----------------------------------------------------------------


</x-flowed>