You may not need freon. Propane has similar characteristics, according to Alaskastar. If so, it may be the heat transfer coolant of choice.
Now a heat pump as a source of energy- that has to be one of the most spectacular devices we could promote on this site. Imagine using the difference in temps to generate power, even just the difference between the temp outside and the temp a few feet underground or in the shade or in a pond or stream.
Anyone interested in collaborating on a working model???????????
BillStatistics: Posted by mrgalleria — Thu Jul 20, 2006 6:41 am
]]>