Electric unit heaters

An electric unit heater draws energy from the mains supply and converts it into heat using electric heating elements. The built-in fan forces air through the heat exchanger, allowing the heated air to distribute evenly throughout enclosed spaces and provide effective heating. These electric units are used to heat industrial and commercial premises of varying volumes.

Yes, but the correct heating output must be selected. The required output depends on the volume of the space, its insulation, and the external conditions of the building. The EHU-3S performs well in a variety of industrial and commercial spaces, and both its airflow and heating output must be matched to the specific requirements. You can calculate a preliminary heat load using our calculator, or contact our consultant for the best result.

Yes, provided that correctly specified controls are used (e.g. the HMI VOLT controller with a room thermostat function) along with the electrical protection devices required by regulations. The PTC heater features self-regulating temperature control, which eliminates the risk of overheating even during continuous operation. The room thermostat in the controller automatically switches the unit heater off and on once the set temperature is reached, adapting the heating output to the current demand.

Yes, the EHU-3S holds a CE certificate and an EU Declaration of Conformity.

All electric units fitted with heating elements, regardless of their heating output, must be protected by a residual current circuit breaker (RCCB) with a rated residual operating current of 300 mA as fire protection. The electrical circuit should also include a main isolating switch allowing safe disconnection of the unit heater from the installation. Full specifications are provided in the unit's technical documentation.

Yes, if you hold the relevant electrical qualifications. If not, installation must be carried out by a qualified electrician. Electric unit heaters do not require complex installation like a water heating system (no pipework, valves, or heating network connections), but they do require a correctly wired three-phase 400 V connection for the heater and appropriate electrical protection devices. Due to the weight of the unit (25 kg), we recommend installation by a team of at least two people.

Yes. Electric unit heaters are among the most commonly recommended solutions for buildings equipped with a photovoltaic installation. Locally generated energy covers a significant portion of the unit's heating output demand, particularly during the transitional seasons (spring, autumn) when the thermal load of the spaces is moderate.