Electric Heater Kit for use with GB, GP, HB and HP Geothermal Heat Pumps KWBEH0101N05, KWBEH0101N10, KWBEH0101B15, KWBEH0101B20 Electric Heater Kit for use with GB, GP, HB and HP Geothermal Heat Pumps KWBEH0101N05, KWBEH0101N10, KWBEH0101B15, KWBEH0101B20