Re: Hot Water from Superheat of GWHP

David Lesher wrote:

> Marshall Dudley <[EMAIL PROTECTED]> writes:
>
> ...
>
> This was a 5 ton water-water system in southern MD.
>
> On the well loop, I'd think you will soon have real issues. The
> magnetic water softeners are as effective as the "100 mile/gallon
> carburetor" you can buy from J. C. Jipney....

Maybe.  Apparently sometimes they work, and sometimes they don't.  From some of
the research I have done, a trace of silica must be present for it to work, and I
don't have the equipement to check for that. But the only other option would be to
use a ion exchange water softner and that would require lots of salt.

>
>
> We used an expen$ive 3-loop well system.  If you have the land,
> you can plow in a horizontal loop.

That would be a problem. Although there is a good 100' of land behind the house,
TVA claims domain over most of that for flood plain, and what is left has the
septic field in it.

>
>
> I never calculated the desuperheater output but Bill reported
> it was quite effective.

It seems to do a pretty good job, heating 150 gallons of water about 6 degrees per
hour of operation.

>
>
> >OK, we will work with that and see how it does.  But that Riverbath tub takes
> >so much water, it will probably require us to at least light the second tank,
> >and maybe even set the first tank to something fairly low.
>
> I would leave the 2nd tank lit and see what happens.
>

We will once he moves in.  I plan on having the super heat heat the first tank,
and the gas heat the second.  Right now the superheat is heating both, and the gas
is on pilot only to save gas.

Marshall

>
> >The entering temperature is 57 F, and the exit when cooling is about 72 F.
> >The exit when heating is about 47 or 48.  There is 8 gallons per minute
> >flowing in the 4 ton unit. This is using the Carrier constant flow regulator.
> >I had to put a pressure regulator on the system though because when the water
> >pressure went above about 35 psi the regulator got very loud, like a
> >waterfall.
>
> I can't recall the flow rate on the well loop but it was dual Grumpus [?sp]
> pumps.
>
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