Hydronic Unit Heater; Type Corrosion Resistant, Vertical Steam/Hot Water; Voltage Rating 115/230/460 Volt 60 Hertz; Current Rating 4 Amp at 115 Volt, 1.4/0.7 Amp at 230/460 Volt; Number of Phases 1, 3; Capacity 139000 BTU/HR; Control Type Thermostat; Fan/Motor Type 115 to 230/460 Volt 1/5 HP 1075 RPM Explosion Proof Motor; Air Flow Rate 2660 CFM; Material 20 Gauge Aluminized Steel; Finish Polyester Powder Coated; Color Gray-Green; Size 34-3/4" Diameter x 6-7/8" Height; Mounting Ceiling Hanger; Application Commercial, Residential, Institutional, Industrial; Approval CSA; Shipping Weight 70 Lb; Warranty 10 Year Limited