Flow heaters

Flow heaters Booster heaters

These water heaters, mainly used for heating of water or oil, are mainly designed according to customer specifications. Flow-through heaters can also be constructed with Backer standard products. A complete heater consists of a black enameled steel tube, a screw-plug immersion heater and a terminal box with temperature control.


Backer produces a wide range of flow-through heaters for liquid heating, flexible according to customer specifications. Different options, electrical connections and water couplings make it easy for you to find the perfect flow-through heater for your application.

Technical data


Tube and element in stainless steel AISI 304, 316L


Tube Ø 76 mm, 101.6 mm, 63.5 mm


Inlet G 3/4'', 1'', 1 1/4''
Outlet G 3/4'', 1'', 1 1/4''


Wide range of electrical connections and water couplings
Can also be supplied with thermal insulation
Can also be supplied with different types of connection boxes

Water pressure

Depending on model: max 5-7 bar water pressure


The elements fulfil standards per
EN 60335-1


Thermostat, temperature sensor, thermal cut-off, flow sensor, cable harness, connection box, thermal insulation, air vent, drainage valve, etc

Example applications

  • Solar systems
  • Pool heater
  • Heat pump
  • Floor heating
  • Dish washers
Pool heaters

Product examples

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