WhisperWarm exhaust vent fans with a heater are available with and without a light. Both models feature dual totally a enclosed AC condenser motors for long-life, quiet operation and energy efficiency. A durable 1400-Watt steal sheathed heating element provides a quick warm up time.Features: Super quiet operation Totally enclosed condenser motor for long life rated for continuous run Easy installation Rustproof paint treatment on galvanized housing Built-in damper to prevent backdraft Contemporary grille design Thermal fuse protection on motor and 3-level safety device for heater Durable stainless steel sheathed heating element Quick 1 minute warm-up 3 Year WarrantyMeets Washington State Ventilation and Indoor Air Quality CodeCalifornia Title 24 Compliant