RE: [APD] Re: Heating water for water changes

["Douglas Guynn" <d_guynn at sbcglobal.net>]

This is only a concern if your water heater has a tank. The water heater in
my house mounts on the wall, and has no tank. It measures 30" tall, 18"
wide, and 9" front to back, and is VERY efficient. I can run the hot water
for hours, and it never gets cold because it heats the water as it passes
through the heat exchanger. As long as I pay the water bill and the gas
bill, I have and endless stream of hot water.


-----Original Message-----
From: aquatic-plants-bounces+d_guynn=sbcglobal.net at actwin.com
[mailto:aquatic-plants-bounces+d_guynn=sbcglobal.net at actwin.com]On
Behalf Of Scott Scheibe
Sent: Friday, February 25, 2005 9:50 PM
To: aquatic-plants at actwin_com
Subject: [APD] Re: Heating water for water changes


At 08:03 AM 2/25/2005 -0500, "Laith Arif" wrote:

>How exactly do metals build up in a water heater?  Keep in mind that a
>water heater (at least mine) is constantly being flushed with new water as
>you use hot water.  It's not like its always the same water sitting in a
>metal container being boiled over and over again for years. :-)  In any
>case I have a hard time imagining a water heater slowly "dissolving" into
>the water it holds.

         Actually it is not flushing as the hot water is drawn off the top
of the tank not the bottom where the junk accumilates.  Hot water rises and
the cooler water falls.  The incoming water is in a pipe that lets out near
the bottom of the tank.  They have a scrifical annode to keep them from
"slowly dissolving".  I also have to wonder on the effect of hot water on
copper pipes since that is what my house has.


>I have never "flushed" my water heater.  I don't even think my water
>heater has a "flushing" function.

         That is what the spigot near the bottom of the tank is for, I have
never seen a water heater that doesn't have one.  I flush mine at least
once a year.  We have very hard water and if they are not flushed it builds
up until the heater fails.


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