• CB 315-12.0 Circular Duct Heater 315mm– 12kW Electric Heater Battery, 400V 3-Phase, Stainless Steel Element, Overheat Protection, Minimum Airflow 430 m³/h
  • CB 315-12.0 Circular Duct Heater 315mm– 12kW Electric Heater Battery, 400V 3-Phase, Stainless Steel Element, Overheat Protection, Minimum Airflow 430 m³/h

CB 315-12.0 Circular Duct Heater 315mm– 12kW Electric Heater Battery, 400V 3-Phase, Stainless Steel Element, Overheat Protection, Minimum Airflow 430 m³/h

Regular price £747.37
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Description
  • Efficient 12kW Heating Performance – Designed to deliver powerful and consistent air heating in ventilation ducts, making it ideal for commercial and industrial HVAC systems requiring reliable temperature control.
  • Durable Industrial Construction – Manufactured from high-quality Aluzinc-coated sheet steel with stainless steel heating elements to ensure long-lasting durability, corrosion resistance, and dependable performance.
  • Integrated Safety Protection – Equipped with built-in overheating protection and a manual reset function to help prevent system damage and ensure safe operation in demanding environments.
  • Flexible Installation Options – Suitable for both horizontal and vertical duct installations; connection box must face upward or sideways for proper safety and accessibility.
  • Airtight Spigot Connections – Features rubber seals on the connecting spigots to ensure secure duct connections, reduce air leakage, and maintain efficient airflow within the ventilation system.

The Systemair CB 315-12.0 Circular Duct Heater is a high-performance electric duct heater designed for efficient heating in ventilation systems with standard spiral circular ducts. Built from durable Aluzinc-coated sheet steel and equipped with stainless steel heating elements, this 12kW heater ensures reliable performance and long service life in commercial and industrial HVAC applications. It features integrated overheating protection with a manual reset function to enhance safety during operation. The unit includes rubber seals on the connecting spigots for secure and airtight installation. Designed for flexible installation, the heater can be mounted in both horizontal and vertical duct systems, provided the connection box is positioned correctly. With a minimum required airflow of 430 m³/h based on an air velocity of 1.5 m/s, the CB 315-12.0 ensures consistent heating while maintaining a maximum output air temperature of 50°C, making it suitable for control via a room thermostat or Pulser controller.


  • Brand: Systemair
  • Model: CB 315-12.0
  • Product Type: Circular Duct Heater
  • Product Code: 5387
  • Heating Capacity: 12 kW
  • Voltage: 400 V
  • Phase: 3-Phase
  • Minimum Airflow: 430 m³/h
  • Maximum Output Air Temperature: 50°C
  • Material: Aluzinc-coated sheet steel casing with stainless steel heating element
  • Colour: Metallic Silver / Steel Finish
  • Duct Diameter: 315 mm
  • Dimensions: 315 mm duct connection diameter; overall length approx. 400–450 mm
  • Weight: 7.4 kg

Delivery time: 3-5 working days.


Your purchase includes a 1-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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