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Electric boilers

The ideal solution for companies facing energy transition or that, due to their location, must comply with stringent emissions limits imposed by the regulations enforced in that specific area.
Unlike traditional flame boilers, industrial electric boilers do not work with combustion but use a system of resistors or electrodes to efficiently generate energy needed for the production process.

Key features

Steam generators electrically operated


Steam capacity

up to 20 t/h



up to 100 barg



nearly 100%


NOx emissions

0 mg/Nm³

Thermal oil heaters electrically operated


Thermal capacity

up to 8 MW



up to 390°C



nearly 100%


NOx emissions

0 mg/Nm³


Precise steam pressure and temperature control

Fast start-up and fast load variation

High turn-down ratio

All electrical energy input is fully converted into thermal energy, guaranteeing nearly 100% efficiency

The absence of combustion prevents the emission of any pollutants into the atmosphere, such as nitrogen oxide (NOx), sulfur oxide (SOx), and carbon dioxide.

Easy and reduced maintenance


Depending on process requirements, industrial electric boilers can be designed with resistances, electrodes, or hybrid (traditional fuels + electric) technology.

Electrodes and hybrid technologies are only available for steam generators.

Resistance: Current 360 – 640 V. Ideal for power below 5 MW, and for all industrial utilities and processes. Consolidated technology, simple design, and easy to use.

Electrodes: Current 5000 – 15000 V. Conceived for higher powers and heavy-duty applications.

Hybrid: Ideal for energy transition, and can be used with traditional fuels (also hydrogen) or electric power. Based on instant energy costs or even simultaneously for peak needs.

Compatible products

For steam generators electrically operated

Demineralization plant

Boiler water feeding requires low hardness concentration and conductivity to reduce the blow-down (heat loss). Two different types of treatment can be used: membrane-based technology and ionic-exchange solutions. Dedicated pre-treatments are necessary, based on the available water source.


It is necessary to remove CO2 and O2 to prevent corrosion phenomena. There are two options available: conventional packages composed of a tower and a drum, or the compact “smart” unit where the degassing equipment is realized inside the drum. The performance range is 7-20 ppb, according to the type of the installed unit.

Condensate treatment

It is necessary to purify the steam condensate from the process, to reduce water consumption and recover the heat contained in the condensate.

Dosing of chemical products

Oxygen scavengers are used as the protective dosage downstream of the thermo-physical degassers and as the alkalizing agents to maintain a high pH inside the boiler. The choice of proper water treatment represents the energy optimization of the steam generator/water treatment package and a source of savings in water extraction and discharge costs.

Compatible products

For thermal oil heaters electrically operated

Skid pump

Composed of an oil circulation pump and a control system installed inside the electrical panel, the skid pump is necessary to circulate the oil inside the boiler and the entire plant. Fluid circulation pumps must be correctly sized in flow rate and prevalence to ensure correct fluid velocity in the circuit.

Expansion tank

This tank absorbs the volumetric expansion of the diathermic fluid in the circuit due to thermal expansion caused by oil heating. Using a tank with the function of a well-dimensioned expansion vessel avoids putting the circuit under pressure beyond the design values.

Thermal oil drain tank

A storage tank is where oil is stored when the system is emptied for maintenance or other activities.


An indirect steam generator makes it possible to exploit heat coming from a thermal oil heater to produce energy in the form of steam. Inside, the hot oil passes through a coil that heats the water and transforms it into steam.