Product Type Suspended Horizontal Hydronic Wall Ceiling Unit Heater Air Flow Direction Horizontal Heating Method Steam Water Output @ 2 PSI Steam 72 000 BtuH Output @ 200 F Water 52 300 BtuH Air Flow 1 100 cfm Fan Phase 1 Overall Height 21 3/4 in Overall Width 18 3/8 in Overall Depth 11 1/16 in Amperage 1.4 A Coil Type Header Connection Size 1 1/4 in Connection Type Threaded Female NPT Fan Diameter 14 in Fan Guard Type OSHA Compliant Guard Flow Rate 5.3 gpm Frequency 60 Hz