[at-l] Geo-Exchange -OT

[RoksnRoots at aol.com]

       Just a slight follow-through on a previous OT topic:


         I was pondering why, if passive solar was so advanced, why the 
"loop" of a geo-exchange system couldn't be run through passive heating units on 
the roof while the sun was shining? This short loop would involve heat values 
much higher than that of the underground system. Its efficiency would be very 
high to the point of maximum efficiency. So, when the sun was shining, this loop 
would provide very hot fluid into the heat exchanger instead of the 52* fluid 
gained from the underground passive heat. 


           Also, the Times had and article telling how wood furnaces are 
becoming a problem because of their popularity. These furnaces burn at low 
temperature and oxygen rates, therefore emitting acrid-smelling, particulate-laden 
smoke into the local surroundings. Many communities are creating laws to limit 
their use because of this. Wood furnaces are a small shed-like unit placed 
outside the home that burn cut wood. Persons with a cheap supply of wood save on 
expensive heating oil or gas.  






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