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DIY Subfloor Kit 6 – Premium Silent TT 150mm with two intakes 120m3

This DIY Sub floor ventilation kit is designed to ventilate a sub floor space of up to 120m3 and comes with two intake points. This is a premium kit and includes the TT Silent inline fan.
This kit includes the following components:

1x TT Silent 150mm Inline fan – Click here for full fan specs
2x 6m of 150mm duct – this can be easily cut to suit your system. If more duct is required please see 'accessories' below.
1x External Vent
2x Intake Vent
1x BTO 150 x 150 x 150
1x 24hour Timer (The timer is plugged into a standard power point)
1x Flex & Plug (The fan is then plugged into the timer)
1x Roll of Hanging Tape
1x Roll of Duct Tape

These components were selected because they are suitable for DIY installation. Using this kit in conjunction with accessories which need hardwiring will require installation by an electrician.

$499.00 $549.00

Some buildings have very little subfloor ventilation. Inadequate underfloor ventilation can lead to an accumulation of moisture in the sub floor. This in turn can cause structural and health problems for the home and it’s occupants.

The most common reason for inadequate under floor ventilation is that there not enough vents, or they are too small for the size and layout of building. Building extensions, building location and soil type can all contribute to problems in the subfloor.

This underfloor kit is specifically designed to service areas of up to 120 cubic meters. This kit also comes with a BTO (Y Junction) which allows for two intake points.

TT Silent Mixflow Fan Features

  • Premium Silent Inline Motor
  • Only 33 dB(A) on the high speed (this fan is wired to the high speed)
  • Long life ball bearing motor
  • Suitable for continuous running
  • IP X 4 rated motor
  • Includes mounting brackets
  • Overheating protection with automatic restart
  • Dynamically balanced turbines

Extract Capacity (free flow)

Power Consumption On High (Watts)

Noise (at 3m on low)

Motor Type



Type Of Fan

Fan Brand

Warranty On Fan