In the city of Klamath Falls, Oregon, the use of hot geothermal waters to heat homes and industry is not a new thing. Several hundred homes, schools , and industries in the region tap geothermal hot waters of 140 to 235 degrees Fahrenheit to heat their facilities ; Only persons living in an area called the "Hot Springs" have been fortunate enough to tap the resource thus far, while other residents look on wishfully. Now , however, comes word of the potential use of relatively COOL waters to accomplish both heating and air conditioning. Current installations could mean good news to the millions of people who live in areas where underground water sources yield water of relatively mild temperatures (50 to 80 degrees Fahrenheit). Recently, the Barnhisel-Ganong Realty in Klamath Falls installed two heat pump systems which tap into the Klamath Falls underground reservoir, whose temperatures average approximately 68 degrees Fahrenheit