Subhot Industrial

Over the Side Immersion Heater

Over the side immersion Heaters are specially designed for the applications like heating oils of varying viscosities, degreasing solutions, heat transfer oils and caustic solutions, plating baths, salts and acids.
They are portable and can be used where heaters are to be removed without emptying the tanks, or when there is no access to the liquid medium except from the top.

The over the side heater is best suited for the process because the heat transfer is immediate and the temperature can be controlled to the point that no more heat is used than absolutely necessary.
They are strong enough to withstand many harsh environments both indoors and outdoors and are an exceptional choice for projects with limited budgets. Application versatility is enhanced with optional sheath materials, kilowatt ratings, terminal enclosures and mounting methods.
Available in various shapes and sizes which fit the customer’s dimensional requirements such as:- “ Installed-from-the-top” ( L or O shaped) which can easily slide into the tank.
The drum immersion heaters are designed for direct immersion in a standard gallon steel drum. Vertical loop immersion heaters are well-suited for open tank applications.

Sheath MaterialCopper, Steel, 304 Stainless steel, INCOLOY
Watt DensityUp to 120 W/inch²
Screw Plug MaterialStainless steel, Brass, Steel, Titanium
Screw Plug NPT fittings1 to 4 inches
Diameter0.260”, 0.315”, 0.375”, 0.430” and 0.475”
Voltage120 to 480 V AC Single phase or three phase
Terminal EnclosureIP 23 Standard Terminal Box,


IP 66 Water Proof Terminal Box

ControlThermocouple, RTD, Thermostat, Digitally controlled
Clean water, hot water storage, portable water, freeze protection of liquidCopperSteel
Hot water, steam boilers, mildly corrosive solutions (in rinse tanks, spray washers), vapor degreasersIncoloySteel
Oils (light or medium), Gases, hydraulic oil, stagnant or heavy oils, lubricating oil, crude asphaltSteelSteel
Process water, soap and detergent solutions, Boiler and water heaters, demonized water, chemical baths, mildly corrosive solutions.Stainless SteelStainless Steel
Severe corrosive solutions, demineralized water, food equipmentIncoloyStainless Steel
  • Efficient Heating and operation.
  • Less probability of breakdown.
  • No expensive repair cost.
  • Environmental performance.
  • Improves personal and industry safety.
  • Easy to install.
  • Easy to regulate & maintain.