How To Use Jacketed Boilers

  Water/Oil Bath jacketed boilers usually come with electric heating elements in the jacket layer, heating elements heat the heating fluids(can be oil or water) then heat the liquids in the interior tank, creating an uniform,consistent heating. There’s lower risk of scorching as the elements are not in direct contact with the liquids in the interior tank.

Jacketed Boiler with Heating Element and Heating Fluid in Jacket

 

How to set it up

  • Heating fluid, it’s recommended to use glycol as heating fluid, it can mix with water 50/50.
  •  The heating fluid’s level can be 3/4 the depth of the wash, leave some space for oil to expand. A PRV can be used in the jacket layer if the boiler can handle pressure.

Must leaving the filling port open or using a PRV at the filling port.

How to increase heat efficiency

  • If your boiler is double jacketed without the built-in insulation layer, it’s a good idea to insulate the boiler with insulation blankets(such as epdm sheets, ). It can reduce the energy loss and the heat up time.
  •  If the boiler can handle some pressure, use a proper PRV(pressure relief valve)for the jacket to reduce air leaks, some of our boilers can’t be pressured please consult with us before using the PRV.
  •  When using water as heating fluid(the boiler must can handle pressure), it’s most effective when the water is just enough to protect the elements, leaving as much space for steam to heat the tank.