So who knows about Geothermal cooling?

 

I live in Savannah GA

Very very hot in the summer

What do I need to know to convert from a standard A/C/heat pump to
Geothermal?



--

David B Turner
Island Computers US Corp
2700 Gregory St, Suite 180
Savannah GA 31404
Tel: 912 447 6622 X201
Cell: 912 447 6622 X252
Fax: 912 201 0402
Email: dbturner@icusc.com
Web: http://www.islandco.com
=====================================
All orders are subject to the following terms and conditions
of sale. These should be read before ordering.
http://www.islandco.com/warranty.html

 

David Turner, Island Computers US Corp wrote:

It's expensive. See www.econar.com and www.waterfurnace.com


--
Steve Spence
Dir., Green Trust, http://www.green-trust.org
Contributing Editor, http://www.off-grid.net
http://www.rebelwolf.com/essn.html

 



Geothermal cooling is a great idea in the north during the brief summers.

Geothermal heating is a great idea in the south during the brief winters.

Outside of that, it just gets more expensive and less practical.

 

JoeSP wrote:

In summer, when it's 100F outside, you are trying to get the heat from
the house into ambient outdoor heat. It really doesn't want it. However,
the ground at 50f to 60F or so 8-10' down would love to take it from
you. GSHP's are much more efficient (less power hungry) than air source
units. They are real expensive, but do pay for them selves over time.


--
Steve Spence
Dir., Green Trust, http://www.green-trust.org
Contributing Editor, http://www.off-grid.net
http://www.rebelwolf.com/essn.html

 

David Turner is totally WRONG !!!!  In fact the quickest payback for a
geothermal is in climates needing both heating and cooling, and the
more of both the better.  And after payback the lower cost of operation
over ANY other HVAC energy source keeps paying you.  By far the biggest
cost difference is in the installation of the ground-loop exchanger.
Folding cost into new construction mortgage is the most popular because
of small payment differences and non-established lawns.  Vertical loops
are more expensive but require less length and much less space.  Open
loops, while cheaper, are mostly problematic unless you have the rare
situation of both availability and excellent water quality.  If you
have a deep pond there's also the bottom loop option.

Biggest caveat is to make sure you have a quality installation,
especially the  vertical ground loop which typically costs $2K/ton to
install and is buried and inaccessible for repair.  In fact, 90% of
problems, if any, occur on the ground loop side, including pump(s) and
heat exchanger.  And as with any other major appliance, make sure you
have warranties and the teeth to enforce it.

Steve Spence wrote: