Product Type Suspended Horizontal Hydronic Wall & Ceiling Unit Heater, Air Flow Direction Horizontal, Heating Method Steam, Water, Output @ 2 PSI Steam 240,000 BtuH, Output @ 200 F Water 174,000 BtuH, Air Flow 3.500 cfm, Fan Phase 1, Overall Height 30 1/4 in, Overall Width 27 7/8 in, Overall Depth 14 in, Amperage 4.5 A, Coil Type Header, Connection Size 2 in, Connection Type Threaded Female NPT, Fan Diameter 20 in, Fan Guard Type Standard Guard, Flow Rate 17.4 gpm, Frequency 60 Hz