Hot water with de-superheater

Posted by Jack on August 13, 2008, 7:04 pm

I am wondering how much hot water a geothermal heat pump with de-
superheater would provide. Could it provide all the hot water for a
couple, year round? What additional information should I provide?
Thanks, Jack

Posted by Noon-Air on August 13, 2008, 10:23 pm

>I am wondering how much hot water a geothermal heat pump with de-
> superheater would provide. Could it provide all the hot water for a
> couple, year round? What additional information should I provide?
> Thanks, Jack

Its gonna depend on the efficiency of the heat pump...

Posted by Jack on August 14, 2008, 7:06 pm

> >I am wondering how much hot water a geothermal heat pump with de-
> > superheater would provide. =A0Could it provide all the hot water for a
> > couple, year round? =A0What additional information should I provide?
> > Thanks, Jack

> Its gonna depend on the efficiency of the heat pump...

80%

Posted by Noon-Air on August 14, 2008, 7:32 pm

> >I am wondering how much hot water a geothermal heat pump with de-
> > superheater would provide. Could it provide all the hot water for a
> > couple, year round? What additional information should I provide?
> > Thanks, Jack

> Its gonna depend on the efficiency of the heat pump...

80%

What is 80%?? How about EER, or SEER?? FWIW, once you get around 14SEER, and
12EER, there is not really enough waste heat for a de-superheater. At best,
you *might* see 110 - 120 degree water out of the de-superheater under
"ideal" conditions.

Posted by on August 14, 2008, 7:38 pm

wrote:

>> >I am wondering how much hot water a geothermal heat pump with de-
>> > superheater would provide. Could it provide all the hot water for a
>> > couple, year round? What additional information should I provide?
>> > Thanks, Jack

>> Its gonna depend on the efficiency of the heat pump...

>80%
>What is 80%?? How about EER, or SEER?? FWIW, once you get around 14SEER, and
>12EER, there is not really enough waste heat for a de-superheater. At best,
>you *might* see 110 - 120 degree water out of the de-superheater under
>"ideal" conditions.

        Gonna have to debate you that one - you still have sufficient
heat at the discharge line, where a de-s ex goes, even though you're
running a lower head.

        The REAL question shoudl have been 'what SIZE unit' ? 2 T ? 3
? 5 ? THAT tells you how much heat it MAY make available ) of course
depending on the weather, and indoor settings )

        Efficiency of the HP has nothing to do with it, really. It's
BTU's moved that matter.

        Hint to OP - in the winter, any heat it sends to make HW will
be heat that otherwise would have gone to heat your living area.
Capacity needs to be designed accordingly.


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