DIY Subfloor Kit 2 – VKP Minibox 100mm for area up to 35m3

This DIY Subfloor ventilation kit is designed to ventilate a subfloor space of up to 35m3.
This kit includes the following components:

1x VKP Minibox 100mm Inline fan – Quiet and compact unit.Click here for full fan specs.
1x 6m of 100mm duct – this can be easily cut to suit your system. If more duct is required please see 'accessories' below.
1x External Vent
1x Intake Vent
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


This DIY Subfloor Kit Includes:

VKP Minibox 100 kit parts

Some buildings have very little subfloor ventilation. Inadequate underfloor ventilation can lead to an accumulation of moisture in the subfloor. 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 35 cubic meters. This kit comes with the compact VKP Minibox, which can be a good choice if you have space restrictions or want something a little quieter.

Installation Diagram

subfloor kit 2 diagram

VKP Minibox Fan Features

  • The fan casing is made of steel with polymeric coating.
  • The removable cover provides easy access to the motor.
  • Single-phase motor with external rotor and overheating protection and automatic restart.
  • The motor is equipped with ball bearings for long service life designed for at least 40 000 hours.
  • For precise features, safe operation and low noise, each turbine is dynamically balanced.
  • Motor protection rating IPX4.

Running Costs

This DIY subfloor kit comes with a VKP Minibox – this is a 45w motor. Based on daily usage (4 hours per day) this fan will cost approximately $23 annually (or 44 cents per week).

Please note: These calculations are based on a rate of 35 cents per 1000w per hour, based on current peak time rates. Actual cost will vary depending on your individual rates and usage amount.

Please note: These calculations are a rough estimate and will obviously be dependent on your rates and usage levels

SKU: EUFUKS Categories: ,
Extract Capacity (free flow)

Power Consumption On High (Watts)

Noise (at 3m on low)

Motor Type


Type Of Fan

Fan Brand

Warranty On Fan