• Systemair CB 250-9,0 3-Phase 400V Duct Heater – 9kW, 200mm, Round Spigot, Minimum 280m³/h, Aluzinc Steel with Stainless Steel Element
  • Systemair CB 250-9,0 3-Phase 400V Duct Heater – 9kW, 200mm, Round Spigot, Minimum 280m³/h, Aluzinc Steel with Stainless Steel Element
  • Systemair CB 250-9,0 3-Phase 400V Duct Heater – 9kW, 200mm, Round Spigot, Minimum 280m³/h, Aluzinc Steel with Stainless Steel Element
  • Systemair CB 250-9,0 3-Phase 400V Duct Heater – 9kW, 200mm, Round Spigot, Minimum 280m³/h, Aluzinc Steel with Stainless Steel Element
  • Systemair CB 250-9,0 3-Phase 400V Duct Heater – 9kW, 200mm, Round Spigot, Minimum 280m³/h, Aluzinc Steel with Stainless Steel Element
  • Systemair CB 250-9,0 3-Phase 400V Duct Heater – 9kW, 200mm, Round Spigot, Minimum 280m³/h, Aluzinc Steel with Stainless Steel Element

Systemair CB 250-9,0 3-Phase 400V Duct Heater – 9kW, 200mm, Round Spigot, Minimum 280m³/h, Aluzinc Steel with Stainless Steel Element

Regular price £516.91
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Description
  • High-Performance Heating: 9kW 3-phase 400V duct heater provides reliable warm airflow for standard spiral ducts.
  • Durable Construction: Aluzinc-coated steel body with stainless steel heating element ensures long-lasting corrosion resistance.
  • Safety Features: Built-in overheating protection with manual reset and rubber-sealed spigots for secure and safe operation.
  • Flexible Installation: Suitable for horizontal or vertical ducts; the connection box should face upward or rotated 90° to the side. Downward installation is not permitted.
  • Versatile Control: Compatible with room thermostats or Pulser systems; designed for maximum air output temperature of 50°C and minimum airflow of 280m³/h.

The Systemair CB 250-9,0 duct heater delivers efficient, reliable heating for standard spiral ducts, designed for both horizontal and vertical installation. Crafted from durable Aluzinc-coated steel with a stainless steel heating element, it features integral overheating protection with a manual reset function and rubber-sealed spigot connections for secure airflow. Ideal for control via room thermostat or Pulser, this 9kW 400V/3-phase heater ensures a maximum output air temperature of 50°C with a minimum airflow of 280m³/h. The compact, robust design provides easy installation while maintaining long-term performance and safety.


  • Brand: Systemair
  • Model: CB 250-9,0
  • Voltage: 400V / 3-phase
  • Power: 9 kW
  • Duct Diameter: 200mm
  • Minimum Air Volume: 280 m³/h
  • Material: Aluzinc-coated steel body, stainless steel heating element
  • Colour: Silver (Aluzinc finish)
  • Dimensions: Approx. 250mm (diameter) x 300mm (length) – estimate based on standard CB 250 series
  • Weight: 8–10 kg
  • Product Code: 5373

Our team will ship your order within 5 business days. The time it takes to receive your order depends on the shipping method chosen at checkout. 

We hope you will love it, but if you need to make a return, breathe easy. Returns are always free and can be done via. our support team.


Your purchase includes a 2-year Veralis warranty, offering complete assurance in the quality and longevity of your product. From internal components to craftsmanship and performance, every part of your device is protected. Should you experience any issue during everyday use, our dedicated support team will provide quick and reliable assistance, ensuring you receive a seamless solution with minimal disruption to your comfort.


  • Whisper-Quiet Operation

    Enjoy cleaner air and consistent comfort without any distracting noise.

  • Precision Airflow Engineering

    Enjoy clean, balanced comfort throughout your space.

  • Smart Energy Optimisation

    Our systems automatically adjust their output when needed

  • Built For Modern Living

    Beautiful to look at, effortless to use, and engineered to last.

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