[Greenbuilding] Steam Shower?

[Corwyn]

On 1/10/2011 2:08 PM, Keith Winston wrote:

> I don't know how much water a steam shower takes, but I can imagine that
> the power requirements would be somewhat reduced if you are flashing a
> tank of hot water to steam vs. bringing cold water up to temp.

Sure, but the energy requirements are the same.  Lest we have some 
people still unclear on the distinction between power and energy.

However,
> the difference is only moderate, since actually flashing the water to
> steam takes 5-10 times more energy than heating the water up to, say,
> 180. Kohler can't really keep the water hotter than that, I'd assume, or
> else they'd be risking a steam explosion... Unless I'm missing something
> here...

To be more precise, it take 970 BTUs/lb to vaporize water. (1 BTU/lb to 
raise liquid water 1 degree F, of course)


Thank You Kindly,

Corwyn

-- 
Topher Belknap
Green Fret Consulting
Kermit didn't know the half of it...
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