I need to extract 247 cubic metres per hour from my bathroom. I will be using a 150mm (6") ceiling fan capable of extracting 250 m3/ph (Solar and Palau Silent 300). I have a 1.5 metre run. Currently I have
100mm (4") circular flexible hose already installed. Will this existing hose be sufficient for the job? If it is I intend to use a 150mm =96 100mm reducing spigot. I have read that 100mm is sufficient for up to 250m3/ph but i have not been able to confirm this.Increasing the diameter of the hose will tricky because of the configuration of the void space through which it will travel. The wider the diameter the bigger the problem. If I go larger than 100mm hose I will need to use rectangular flexible hose. The ideal option (180mm x 90mm) is not available as rectangular flexible hose. It seems that the only rectangular flexible hose options are options available are (150mm x 70mm) or (204mm x 60mm). Assuming the existing hose i have is not sufficent, is the 150mm x 70mm enough or do i need to use the 204mm x 60mm.
Many thanks for you help