Mounts to any wooden deck rail and supplies ice-free water all winter long. Will not crack in winter. Thermostatically controlled heater. Heating element is completely hidden beneath bird bath surface. 150 Watts of power. Use year round, remove cord when not used. EZ-TILT-TO-CLEAN. Mounts to 2" x 4" Rail or 2" x 6" Rail.
Dimensions: 20 diameter and 2 depth