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A: Most homes have natural gas, fuel oil, or propane space and hot water heating systems. Much of this equipment is relatively inefficient, but these fossil fuels were abundant and cheap when it was installed. Subsequent fuel price increases, though, have significantly increased the cost of heating with these systems.

In addition, according to the National Ground Water Association, there has been a general ignorance about ground water. Many mistakenly believed ground water resources were limited. Also, many believed geothermal heat pumps were only able to utilize ground water of 60°F or warmer, ground water contained chemicals which would promote corrosion or scaling of the heat exchanger, or  ground water flowed in underground rivers or veins that required a water witch to locate them. Of course, as we have already shown, these beliefs were false.