Secondary heating device for diesel exhaust fluid tank

A secondary heater assembly for a diesel exhaust fluid tank having a primary heater, the secondary heater assembly comprising:

• a heating wire;
• and
• a plurality of spindle assemblies, each of the plurality of spindle assemblies including
• a spindle having a first end and a second end opposite the first end, the first end and the second end defining a central axis therebetween, the spindle defining a plurality of grooves arranged between the first end and the second end;
• a retaining pin coupled to the spindle, the retaining pin extending generally parallel to the central axis, and
• an attachment mechanism coupled to the second end, the attachment mechanism configured to couple the spindle to an inner surface of the diesel exhaust fluid tank,
• wherein the heating wire is coupled to the plurality of spindle assemblies by securing at least a portion of the heating wire to each of the plurality of spindle assemblies between the retaining pin and the central axis.