Propane Heater - 420 lb Gas Cylinder Heater - Powerblanket Lite PBL420 - 420 lb Propane Tank Insulated Heating Blanket Type: Electric Gas Cylinder Tank Heating Blanket Voltage: 120 volt Size/Dimensions: Designed to fit a 420 lb propane tank Standards/Certifications: ETL Certified to UL/CSA/CE Safety Standards Watts: 400 Phase: Single Phase Amps: 3.33 Parts: 1 Year