Replacing extractor fan in bathroom - inline motor?

Ant555

I have an ageing ceiling extractor fan in the bathroom that needs replacing.  Its been in ages and is effectively a vented hole in the ceiling into the loft with a length of felxi duct to a motor thing mounted in the loft and then a small length of duct  from the motor to the outside vent on the gable end wall.

as this item is easily 15 years old so possibly old and inefficient technology, i would welcome any suggestions on my options as I see many extractor fans have the motor thing in the ceiling part itself (and then I would attach a slightly flexi hose to the outside vent) or is an inline motor still the way to go.

The distance from the ceiling hole to the outside wall hole is about 1.5metres

Thanks 

FaceHead

Yes an inline extractor fan is your best bet when ducting through a loft. They are generally more powerful (which you'll need for a >1m duct run, particularly with a bend in it), and as the motor is in the loft, rather than in the bathroom, they are much quieter.  

They are typically more expensive than your basic wall mounted extractor though. 

It sounds altogether like what you've got - although clearly they will have improved in 15 years. 

Grenage

If you can, use rigid rather than flexi pipe.

rob7475

Inline fans are better than ones directly mounted to the ceiling as they'll be quieter. Something like this has good extraction and runs very quietly if mounted correctly in the loft.

https://www.screwfix.com/p/manrose-mf100t-25w-in-line-mixed-flow-fan/719GY?kpid=719GY&ds_kid=92700055281954508&ds_rl=1249404&gclid=Cj0KCQjwpf2IBhDkARIsAGVo0D0MYJmL3fLvArVNEAOokMzYhKaGsq_b25CJpCmfXqtTSOJpD404o64aAvSTEALw_wcB&gclsrc=aw.ds

Insulated ducting also helps with noise reduction and reduces condensation build up within the ducting.

Jeepers_Creepers

All good info above.

If the bathroom grill is also being replaced, then consider going to 5" ducting size too. Other tips are to insulate all the ducting in the loft so that it warms up quickly in use and far less condensation will form in it, especially in Winter time. Consider a humidistat type too, if condensation in the bathroom has been an issue.

Chickereeeee

I bolted my in-line fan to a piece of paving stone, which rests on a piece of vibration absorbing material. These is zero noise or vibration from the motor itself, just the fan/air movement