Product Type Suspended Horizontal Hydronic Wall & Ceiling Unit Heater, Air Flow Direction Horizontal, Heating Method Steam, Water, Output @ 2 PSI Steam 300,000 BtuH, Output @ 200 F Water 230,000 BtuH, Air Flow 5.000 cfm, Fan Phase 1, Overall Height 37 3/4 in, Overall Width 33 3/8 in, Overall Depth 18 5/8 in, Amperage 5.4 A, Coil Type Header, Connection Size 2 in, Connection Type Threaded Female NPT, Fan Diameter 24 in, Fan Guard Type Standard Guard, Flow Rate 23 gpm, Frequency 60 Hz