Product Type Suspended Horizontal Hydronic Wall & Ceiling Unit Heater, Air Flow Direction Horizontal, Heating Method Steam, Water, Output @ 2 PSI Steam 204,000 BtuH, Output @ 200 F Water 148,000 BtuH, Air Flow 2.900 cfm, Fan Phase 1, Overall Height 29 in, Overall Width 24 5/8 in, Overall Depth 13 3/4 in, Amperage 4.5 A, Coil Type Header, Connection Size 1 1/2 in, Connection Type Threaded Female NPT, Fan Diameter 18 in, Fan Guard Type OSHA Compliant Guard, Flow Rate 14.9 gpm, Frequency 60 Hz