Heat pumps work pretty well in central Texas in the winter months as It is
not exceptionally cols, but the efficiency drops in the summer months when
the outside temps soar. The benefit of a geothermal heat pump is that it
uses the earth as a heat sink, since the ground below the frost line is a
pretty consistent temp of about 55 degrees F so in the winter is soaks up
the heat from the ground and in the summer months it puts the excess heat
from your home into the ground. There are a number of ways to tap this
enormous heat sync, vertical well, horizontal trench, a multi trench field,
and using the bottom of a pond, these are just a few. There are also DIY
geothermal kits. You really need to do some research in your local region to
gauge the specifics.
ck
-----Original Message-----
From: DoIt_Yourself@yahoogroups.com [mailto:DoIt_Yourself@yahoogroups.com]
On Behalf Of Joy Rex
Sent: Friday, June 01, 2012 11:41 AM
To: DoIt_Yourself@yahoogroups.com
Subject: [DIY] geothermal A/C in Austin TX-area limestone ??
I keep looking further into efficient ways to beat the heat... Now I ran
across mention of geothermal again.
I don't know how much longer I'll want to keep this house (how much I want
to put into it), and money is always a problem; I do all the work that I
can, myself. It's hard diggin' in this "dirt" around here... An inch of dirt
on top of sometimes-boulder-size limestone.
Anybody have experience / thoughts on geothermal A/C -- or other efficient
systems?
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