TY - CPAPER AU - Martin Stefanco TI - HEAT PUMP WATER HEATING SYSTEMS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 15th International Multidisciplinary Scientific GeoConference SGEM2015, ENERGY AND CLEAN TECHNOLOGIES PY - 2015 DO - 10.5593/sgem2015/b41/s17.038 PB - Stef92 Technology ER -