The Safe-Vue washer solvent heater from Rostra Precision Controls works year-round by heating windshield washer solvent to melt ice and snow, remove road oils, tree sap, insects and other dirt or film. The patented system automatically heats the solvent in a separate reservoir within 90 seconds of a cold start, is thermostatically controlled to prevent overheating, and is insulated to continuously and safely keep the fluid warm.