Electric unit heater EHU-3S series
The EHU-3S electric unit heater is a professional heating solution for demanding industrial facilities such as production halls, warehouses, factories, and stores. Manufactured in Poland, it stands out with its solid design. Thanks to a housing made of high-quality carbon steel, it ensures long-term durability and resistance to mechanical damage.
Key features:
- Airflow from 1200 m³/h up to 3000 m³/h
- Weight: 25 kg
- PTC heating element
- Motor power starting from 90W
- IP54-rated motor
- Easy installation and wide compatibility
What makes the EHU-3S series unique?
Innovative heating technology
Equipped with a two-stage PTC heating element with a power output of 7 kW or 14 kW. The heater automatically adjusts heating intensity based on needs.
Adjustable airflow
The device ensures optimal air circulation thanks to a three-speed fan, perfectly suited to different working conditions.
Intelligent control
The heater pairs best with the dedicated HMI VOLT controller, which features a thermostat and allows control of multiple units simultaneously, significantly improving heating management in large facilities.
Durability in harsh environments
The powder-coated housing not only ensures an aesthetically pleasing appearance but also protects the device from harsh environmental conditions.
Why should you choose an electric unit heater with a PTC heating element?
Heaters equipped with a PTC element offer a modern and energy-efficient solution. The self-regulating temperature function eliminates overheating risks, enhancing safety and extending the unit’s lifespan. Automatic power adjustment reduces energy consumption, while rapid heating ensures efficiency even in demanding conditions.
| Feature | PTC heating element | Traditional heating element |
|---|---|---|
| Safety | Self-regulating temperature prevents overheating and fire risk. | Requires additional overheating protection; risk of failure without proper control. |
| Energy efficiency | Automatically adjusts power to temperature for optimized energy use. | Constant power consumption, regardless of conditions. |
| Heating performance | Uniformly heated surface. | Uneven heating with hot and cold spots due to sensor-based control. |
| Durability | High durability due to resistance to physical and chemical factors, minimizing overheating risks. | Cold and hot spots reduce lifespan. More susceptible to damage. |
| Heating time | Reaches optimal temperature faster. | Slower heating process. |
| Voltage sensitivity | Low sensitivity to voltage fluctuations. | Higher sensitivity, affecting performance. |
| Cost-effectiveness | Longer lifespan and lower energy consumption = savings. | Shorter lifespan and higher energy consumption = no savings. |
An additional PTC heating element safety feature is the supervisory relay, which measures the current drawn by the fan. If the current is too high or too low compared to the nominal value, the relay prevents the heating element from activating. This protects the system from activating the PTC heating element when the fan is not running.
Technical specification
| Electric unit heater EHU-3S | |
|---|---|
| Product code | EHU14-3S-2503 |
| Maximum airflow [m3/h] 3 stage/2 stage/1 stage |
3000 / 2000 / 1200 |
| Voltage/frequency [V/Hz] | 400/50 |
| PTC power [kW] | 7 / 14 |
| Nominal motor power [W] 3 stage/2 stage/1 stage |
185 / 140 / 90 |
| IP protection rating of motor | 54 |
| Net weight [kg] | 25 |
| Noise [dB*] 3 stage/ 2 stage/ 1 stage |
57 / 55 / 49 |
* - the measurment at the distance of 5m from the device
Files to download
Here you will find: user manuals, CE compliance declarations, product brochures, CAD models, and more.
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Additional information
IP 54 protection rating
The device's fan has an IP54 protection rating, meeting the requirements of the European Directive 2009/125/EC (ErP 2015).
Month warranty
Each device is covered by a 24-month manufacturer’s warranty.
Temperature range
The fan is designed to operate with air temperatures from -30°C to +60°C and a relative humidity of ≤90%.
What sets Reventon apart?
- Flexible and customer-centric approach
- Constant availability of stock in Poland
- Fast order fulfillment worldwide
- Modern, efficient, and reliable products
- Flexible sales offer and attractive discounts
- Detailed technical documentation
- Professional technical support team
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