[Homeroast] comments on a few things while traveling with coffee (aluminum)
pchforever at gmail.com
Thu Apr 22 21:05:07 CDT 2010
interesting Phil and Peter...
tankless h2o heaters have no rods? getting old is a state of mind. phil it's
nice to meet you and peter
are you getting my way on your trip??
consuming god knows what in Arizona!!
On Thu, Apr 22, 2010 at 4:45 PM, peter zulkowski <peterznpgcable.com@
> Please tell me where the 'sacrificed aluminum' drifts off to?
> Is it in the water that comes out of this SS hot water tank?
> Then we consume it??
> Wondering mind would like to know.
> PeterZ here for the month of April/May in beautiful Danvers, MA
> Phil Palmintere wrote:
> I hadn't thought about it until now; maybe I'm getting old, or maybe it's
> the exposure to aluminum.
> Hot water heaters we all have in our homes are stainless steel tanks with
> aluminum rod suspended inside -- it is called the "sacrificial anode". The
> aluminum is consumed (<== highly technical term use) over the years instead
> of the stainless steel of the tank (hence the word "sacrificial"). Once
> sacrificial anode is gone, then the stainless steel of the tank will go.
> And the only difference between a hot water heater with a 6 year warranty
> and one with a 12 year warranty is that the latter have *two* sacrificial
> And of course they are replaceable; I change mine every 4 years just to be
> Here's a picture of the rod - a new one, and an old one. The old one only
> shows the steel core wire left; all the aluminum has been consumed into the
> hot water.
> So... do espresso machines have sacrificial anodes in their boilers? My
> guess is they don't. Has anyone had a boiler go bad?
> The newer Gaggias--even the lower-end "Color" line--now have stainless
> Ever look into the aluminum boiler on your espresso machine?
> Only if you have a Gaggia. Most machines use copper or brass for the
> boiler. My La Marzocco uses stainless steel.
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