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Blow Air  |  SKU: WHS2-3S-1790

S2-3S water heater

€801,05
pay up to 30 installments,

Delivery and Shipping

At Krolit, we are committed to providing a seamless and reliable shipping experience for our customers. Once you place your order, it is generally processed within 1-3 business days, excluding weekends and holidays. As soon as your order ships, you will receive a confirmation email with your tracking number and shipment details, so you can easily track your delivery.

We offer several shipping options, including standard, express, and overnight shipping, to meet your needs. Shipping costs and estimated delivery times are clearly displayed at checkout and vary based on your location and the shipping method selected. Please note that all delivery times are approximate and may be subject to delays due to factors such as weather conditions, high order volume, or courier issues.

Currently, Krolit [offers/does not offer] international shipping. If international shipping is available, please be aware that customs duties, taxes, or other additional fees may apply, which are the responsibility of the recipient. We recommend checking with your local customs office before placing an order.

To ensure timely delivery, please ensure the shipping address provided at checkout is correct and complete. Krolit is not responsible for delays or lost packages due to incorrect or incomplete address information. If your package appears to have been delivered but you haven't received it, we recommend contacting the courier first. If the problem persists, our customer support team is available to assist you.

If you have any questions or concerns regarding shipping or delivery, please do not hesitate to contact us at [your email address] or by phone at [your phone number].

At Krolit, we value your satisfaction and are committed to ensuring your order arrives safely and on time.

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Description

The S Series air heater features a sturdy casing made of galvanized and powder-coated steel, ensuring strength and durability. This device is equipped with a 3-speed fan, allowing you to adjust performance to the specific needs of the space. Thanks to the advanced technology used in the air heater, heat output can be precisely controlled, thus increasing the device's functionality and improving its overall parameters. The extensive range of S Series heaters allows you to adjust the device's heat output to fully meet the thermal comfort of people in medium and large cubic capacity spaces. Key features:

  • Structure: Galvanized steel, powder coated
  • Fan: 3 speeds, adjustable
  • Heating power: Adjustable, for optimal comfort
  • Mounting: Dedicated mounting console, for a wide range of installation options and precise airflow direction

Places of use: The water heater is perfect for environments such as:

  • Warehouses
  • Warehouses
  • Production areas
  • Mechanical workshops
  • Logistics centers
  • Commercial pavilions

Technical parameters:

  • Power range: 2-66 kW
  • Weight: 16-29 kg
  • Frame: Galvanized steel, powder coated
  • Heat Exchangers: Available with 1, 2 or 3 row heat exchangers
  • Fan: IP 54 protection, compliant with European ErP 2015 standards

The heaters are equipped with dedicated accessories that allow for fully automated operation. This improves operational efficiency and allows for measurable savings through intelligent device control and energy consumption regulation. These features make the S Series air heater an excellent choice for ensuring optimal thermal comfort in various industrial and commercial environments.

Technical specifications

S1-3S S2-3S S3-3S S4-3S
Product code WHS1-3S-1789 WHS2-3S-1790 WHS3-3S-1791 WHS4-3S-1787
Nominal heat output [kW*] 3 speeds/ 2 speeds/ 1 speed 14.7 / 13.1 / 11.3 23.4 / 16.0 / 14.0 36.9 / 20.8 / 17.8 50.1 / 38.5 / 27.5
Heating capacity range [kW**] 1.57 - 19.5 2.1 - 30.8 2.92 - 48.8 4.17 - 66.2
Maximum air flow [m³/h] 3 speeds/ 2 speeds/ 1 speed 1400 / 1150 / 900 2000 / 1100 / 900 1800 / 850 / 700 3350 / 2250 / 1400
Maximum isothermal flow rate [m]
10 13 11 18
Number of ranks [pcs] 1 2 3 2
Water capacity [dm3] 0.5 1.3 1.9 2
Maximum heating fluid temperature [°C] 120 120 120 120
Maximum heating fluid pressure [MPa] 1.6 1.6 1.6 1.6
Connector diameter [cal] 3/4 3/4 3/4 3/4
Voltage/Frequency [V/Hz] 230/50 230/50 230/50 230/50
Motor rated current [A] 3 speed/ 2 speed/ 1 speed 0.40 / 0.30 / 0.25 0.58 / 0.30 / 0.20 0.58 / 0.30 / 0.20 0.84 / 0.65 / 0.54
Rated motor speed [rpm] 3 speed/ 2 speed/ 1 speed 1350 / 1150 / 900 1400 / 1000 / 680 1400 / 1000 / 680 1400 / 1050 / 750
Motor rated power [W] 3 speeds/ 2 speeds/ 1 speed 85 / 65 / 55 125 / 75 / 43 125 / 75 / 45 190 / 150 / 120
Motor IP protection rating 54 54 54 54
Net weight [kg] 15 21 23 27
Noise [dB***] 3 speeds/ 2 speeds/ 1 speed 51 / 45 / 43 54 / 48 / 46 53 / 47 / 45 56 / 50 / 48
* - for parameters 90/70°C and inlet air temperature 0°C ** - maximum capacity for 120/90°C, 0°C inlet air temperature, 3rd stage // minimum capacity 40/30°C, 20°C inlet air temperature, 1st stage *** - measurement at 5 m distance from the device

Main Benefits of the S2-3S Blowair Water Heater

  1. Optimized energy efficiency : Works with low temperature hot water (40-65°C), ideal for integration with condensing boilers or heat pumps, guaranteeing energy savings of up to 25% compared to traditional systems.
  2. Compact and adaptable design : Compact structure and versatile mounting options (wall or floor), perfect for small or medium environments such as shops, offices, professional studios or small workshops.
  3. Even Heating : High-efficiency fan and copper/aluminum finned coil to distribute hot air evenly, eliminating cold spots.
  4. Minimal maintenance : Corrosion-resistant materials (treated steel, epoxy finishes) and high-quality electrical components for long-lasting durability.
  5. Low noise impact : Blowair technology with balanced fan and low-noise motor, suitable for spaces where silence is a priority (e.g. clinics, dental practices).
  6. Intuitive control : Simplified management via integrated or remote thermostat, with 3-speed adjustment to adapt to different thermal needs.
  7. Environmental sustainability : Reduces CO₂ emissions when combined with renewable sources, contributing to low energy impact buildings.

Conclusion
The S2-3S Blowair fan heater is the ideal solution for those seeking efficient, quiet, and compact heating in small to medium-sized spaces. Its ability to combine high performance with low costs makes it perfect for commercial businesses, offices, or small production spaces where rapid and uniform thermal comfort is essential. Thanks to Blowair technology, it guarantees reliable and sustainable operation, with an accelerated return on investment thanks to energy savings.

Ideal for: retail shops, medical practices, offices, small artisan workshops, utility rooms.

Conclusion
The S2-3S Blowair fan heater is the ideal solution for those seeking efficient, quiet, and compact heating in small to medium-sized spaces. Its ability to combine high performance with low costs makes it perfect for commercial businesses, offices, or small production spaces where rapid and uniform thermal comfort is essential. Thanks to Blowair technology, it guarantees reliable and sustainable operation, with an accelerated return on investment thanks to energy savings.

Ideal for: retail stores, medical practices, offices, small artisan workshops, and utility rooms. Product certified for safety and efficiency according to EU regulations.

Frequently Asked Questions

FAQ - Blowair S2-3S water air heater
The Blowair S2-3S uses hot water from a central heating system. This water circulates through the heat exchanger, while the fan blows air through it, distributing heat evenly throughout the room.
The S2-3S fan heater is ideal for industrial and commercial environments, warehouses, sheds, and greenhouses. It can be mounted on either the wall or the ceiling, depending on the available space.
The S2-3S model features a 3-speed fan. It can be connected to a manual speed controller or a room thermostat for automatic temperature management.
No, Blowair designed the S2-3S to ensure a good balance between performance and silence. The noise level is suitable for various contexts, even those requiring acceptable acoustic comfort.
The S2-3S is compatible with:
• Fixing brackets
• Room thermostats
• 3-stage regulators
• 3-way mixing valve
• Grille or air diffuser (optional)
Check accessory compatibility with your specific model.
Yes, it is recommended to:
• Clean the heat exchanger
• Check that the fan is working correctly
• Check the electrical connections
Regular maintenance ensures efficiency and durability over time.

Product safety

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