Solar Hot Water heater, Was Re: [at-l] The State of the List Now windpower

[rcli4 at comcast.net (rcli4@comcast.net)]

Soil temperature at 42 inches in Florida is a constant 68 degrees.  Don't wanna fight. Got no web site to back it up.  Just been working in Florida dirt for 30 years.  The office building I built 20 years ago that included the Service bay for my trucks used forced air through pipes buried at 42 inches as the only form of AC we used about 90 % of the time.

Clyde

 Now I understand how it works. The system 
> puts underground pipes around your yard that are filled with either water or 
> anti-freeze fluid. These pipes act as an underground heat exchange system. The 
> earth, at 6 feet depth, is a constant 50* or so.From jbullar1 at twcny.rr.com  Fri Dec 16 18:23:01 2005
From: jbullar1 at twcny.rr.com (Jim Bullard)
Date: Fri Dec 16 18:29:03 2005
Subject: Solar Hot Water heater,	Was Re: [at-l] The State of the
	List	Now windpower
In-Reply-To: <43A340AA.5060909@snet.net>
References: <291.2556034.30d48884@aol.com>
 <291.2556034.30d48884@aol.com>
Message-ID: <5.0.2.1.2.20051216192052.032aa0c0@pop-server>

At 05:33 PM 12/16/2005 -0500, John Soboleski wrote:
>The efficiency rating for geo exchange is somewhere between 300% and 600%, 
>depending on the application.

300% to 600%? You can extract 3 to 6 times the BTUs from the ground that 
are in there? At no cost? That doesn't make sense.