Heater for contaminant remediation

A heater comprising:

• a rigid bar;
• a plurality of heater clips fixedly attached along the rigid bar;
• the heater clips comprising one or more non-conductive guides affixed to a support structure;
• a non-coiled, uninsulated, u-shaped resistive heating element with a first leg and a second leg, the first leg disposed through a first series of the guides, the second leg disposed through a second series of the guides, wherein the first leg and second leg are disposed substantially parallel to one another and to the rigid bar;
• the first leg configured to, either directly or indirectly, attach to a first electrical conductor of a power source;
• and
• the second leg configured to, either directly or indirectly, attach to a second electrical conductor of the power source,
• the first electrical conductor and second electrical conductor having a differing voltage potential between them to thereby supply electrical current to the heating element;
• wherein the heater is configured to be inserted into a casing of a heater well.