Inline Exhaust Fans

  • Axial motors are designed to move large amounts of air at very low pressure (eg minimal ducting, minimal bends, twists etc).
  • Centrifugal motors move large amounts of air against high pressure. This means the fan will retain its capacity very well over a long duct run.
  • Mixflow motors are as the name suggests, a mixture of axial and centrifugal.
  • In Line Ventilation

    Inline exhaust fans are typically located in a roofspace and can be used for a multitude of applications, including exhaust, heat transfer, sub floor ventilation and roofspace ventilation. Inline fans are connected to ducting or piping and can generally be ducted long distances whilst maintaining strong performance levels. Inline fans come in three motor types: Axial, Mixflow & Centrifugal. Without going into too much detail here is the basic difference between all three:

    For your convenience each inline fan listing comes with a pressure curve. We also include all other relevant information including specs and dimensions. Browse all fans below, or alternatively if you are looking for a complete inline fan kit use the quick links in the sidebar.

inline exhaust fans

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exhaust fan calculatorHow do I calculate which exhaust fan I need?

Fan suitability is usually determined by your room size and application. Generally we recommend aiming to achieve 15 air changes per hour for a bathroom, maybe 10 for a toilet. This is easily calculated, simply work out the size of your room in m3 (length x width x height in meters). You can then multiply this figure by 15 to give you an approximate capacity rating required for the fan. For your convenience all fans are measured in m3/hr. Please note 15 is our general recommendation, rooms prone to condensation may require 20-30 air changes.