A
Replacement of present equipment.

1. Wattage, Voltage, Phase
2. Type of mounting & size
   

   Example:

   Flange Size

   Screw Plug Size

3. Sheath Material: Alloy, Steel or Copper.
4. Material of flange or screw plug.
5. Immersion Length.
6. Shape of present unit.
7. Terminal shape & size.
8. Manufacture-model number.
9. Material being heated

B
New application.

1. Type, weight & volume of material or liquid being heated.
2. Thermal property and known additives.
3. Desired Temperature
4. Allowable heat up time.
5. Physical size of container (including type of material).
6. Exposed surface of both material and container.
7. Type and amount of insulation.
8. Amount of material being processed to determine heat absorbsion.
9. Make up material adder per hour.
10. Time required for operating cycles.
11. Available Voltage & Phase.
12. Type of mounting & size
    Example:
    • Flange & size of
    • Screw Plug & size of