Electric Unit Heater, Fan Forced, 5.0/3.7 kW, Btu 17.0/12.6 x1000, Voltage 240/208, 60 Hz, 1-3 Phase, 21.0/18.0 Amps AC, Air Temp Rise 45 F, 350 CFM, Height 16 In, Width 14 In, Depth 8 1/2 In, Max Mounting Height 8 Ft, Horizontal Air Throw 12 Ft, Vertical Mounting H 9 Ft, Housing Material 20 Gauge Steel, Neutral Gray Powdercoat Housing Finish, Vertical or Horizontal Mounting Position, Requires 5/16 in -18 Threaded Rod for Ceiling Installation, Agency Compliance UL / CUL #E154222