How to Clean Your In-line Heater

With proper installation and good water quality, our Elecro Electric In-line heaters require only minimal maintenance. An occasional internal inspection and cleaning will usually suffice. For dirtier process water more frequent cleanings may be required.

If you are experiencing reduced efficiency, or run a heavy bio load, it’s a good idea to do a quick internal inspection every few months to see if you have build up on the heating coil inside the flow tube. This video illustrates the simple process of cleaning your in-line heater coil. Note that the same process can be used to clean a direct immersion heater coil.

You’ll need the following tools:

  • wrench or nutdriver
  • muriatic acid
  • water
  • plastic tub or basin that you can set heater in
  • bottle brush (wire or nylon)
  • latex gloves
  • eye protection