AccuTherm’s line of standard over the side immersion heater offers a wide variety of styles and shapes to meet nearly all needs. Whether you are heating a small pail of water or a large tank of caustic, we have the right product for the job. If standard designs do not match the application, we offer fast delivery on most custom designs. Since direct immersion is 100% efficient and over the side immersion heaters require no tank modification these are the most easily used yet among the most effective means to heat your process.