4000/3000 WATT HEATER 240/208V HEAVY-DUTY CEILING HEATERS HAVE A WHITE POWDER COATED 18 GAUGE STEEL GRILL. THESE COMMERCIAL HEATERS FEATURE A STEEL BLOCK FIN ELEMENT AND AN AUTOMATIC RESET THERMAL LIMIT THAT DE-ENERGIZES HEATERS IF OVER-HEATING OCCURS. THE FAN PURGE CIRCUIT REQUIRES 4-WIRE SUPPLY WHEN AN OPTIONAL REMOTE WALL THERMOSTAT IS USED (NOT INCLUDED). VANE AXIAL FAN BLADE WITH 700 RPM MOTOR PROVIDES 175 CFM. CEILING HEATERS INCLUDE AN EASY-TO-USE DISCONNECT SWITCH. CEILING HEATERS MEASURE 14-3/16""W X 4""D X 19-15/16""H APPROX. GRILL MEASURES 15-3/8""W X 20-1/8""H. 1 YEAR LIMITED WARRANTY. WARNING: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov -