my ceiling mounted bathroom extractor fan has started to make a loud noise when it is in operation. I have taken a look in the loft and cleaned the non return 'valve' flap as it was quite dusty. This seem to do the trick for a while but alas the noise has come back even louder?
Customized Logo Brand Square Extractor Window Exhaust Fan with Sensor Air Extractor Fan $3.59 - $5.45 Min. order: 100 pieces 220V Air Electric Bathroom Ventilating Wall Mount Exhaust Fan $5.45 - $6.55 Min. order: 100 pieces 4"/5"/6"/8"/10"/12" 110V 220V Silent Greenhouse Air Ventilation...
If you wish to use insulated flex duct (not recommended) you should use 6” line with an adapter) Any ventilation going through uninsulated / unconditioned spaces should be insulated to help eliminate condensation issues (not only that which may form inside the pipe / but also on the exterio...
180mm Ducting Pipe Non Return Valve Round Duct Rigid Tube Connector with Shutter Extractor Fan Backdraft Damper Stopper $0.99 - $1.99 Min. order: 500 pieces 4 Inch Kitchen Bathroom Extractor Fan, 6 Inch ABS Ventilation Exhaust Fan, Plastic White Square Bathroom Kitchen Fan $3.89 - $4.99 Min....