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Posted by Tony on February 26, 2007, 2:46 pm
>
>> Franz you should investigate little more before you commit your
>> self to that project, I am not in that type of business and I do not
>> know you location however your expanse vs. benefits may be
>> some what small and perhaps negative, if you are going to use
>> this for heating as you say water coming out of ground will be
>> still cold and you will need to add heat to it so your expense
>> may out weigh the benefits.
>
> DIDO,
> the fluid is only used as a heat transfer fluid for the heat pump. You
> don't actually use the loop water as the radiant loop fluid. In using it
> for DHW, you will need to use an additional source to heat the water in
> addition to the Desuperheater, especially in the winter.
>
> The benefit to using the desuperheater is that it is free heat. You can
> temper your potable water so that you are now only raising the temp 30 or
> 40 degrees rather than 80-100 degrees, depending on the time of year.
>
> The hottest you are going to get your water is about 110 degrees, great
> for radiant floor heat not so great for a shower.
>
> Most Geo manufacturers make a Water to Water unit. You should first check
> with your municipality will allow you to use an open loop. You should
> then get your groundwater checked for compatability with the GEO unit. It
> is more efficient to use the groundwater over a closed loop, but coil
> maintenance will be more expensive.
>
> In addition to having a borehole drilled you still have to have a well
> pump and associated tanks and pumps inside.
>>
>>
>>
>>>I would like to install an open loop geothermal system where I use
>>> domestic well water run through a heat exchanger before discharging into
>>> a
>>> small "turtle" pond.
>>>
>>> I need recommendations for the heat exchange unit (water to water) and a
>>> source for purchase.
>>>
>>> The building is essentially an insulated pole shed with 2x6
>>> construction,
>>> fiberglass batts for insulation, new Pella Energy Star windows and
>>> doors.
>>>
>>> I will be installing radiant floor heat.
>>>
>>> What I'd like to do is use the well water, run it through the exchanger
>>> which in turn would transfer the water to the hyrdonic floor system.
>>>
>>> It would be a plus to be able to heat domestic water as well. Right now
>>> I have a 40-gal electric water heater.
>>>
>>> Thanks.
>>
Bob understood
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