Product Type Suspended Horizontal Hydronic Wall & Ceiling Unit Heater, Air Flow Direction Horizontal, Heating Method Water, Output @ 200 F Water 18,400 BtuH, Air Flow 500 cfm, Fan Phase 1, Overall Height 16 in, Overall Width 18 in, Overall Depth 9 1/2 in, Amperage 0.8 A, Coil Type Serpentine, Connection Size 3/8 in, Connection Type SWT on Connection, Fan Diameter 10 in, Fan Guard Type OSHA Compliant Guard, Flow Rate 1.9 gpm, Frequency 60 Hz, Heater Voltage 120 V AC, Heating Capacity 18,400 BtuH