Replacing Bathroom Fan

[ukmercenary]

I want to replace this bathroom room fan that I currently have.
https://www.sparksdirect.co.uk/manr...r-wall-ceiling-20w-85m3-h-4-inch#.XtdkwsZ7m9Y

I would like to replace it with one which has a smooth front
https://www.toolstation.com/airvent-100mm-tile-extractor-fan/p82261#reviewTab

I also want to replace it as sometimes spiders seems to like to walk thru the gaps when it is turned off and night and make a home in my bath tub..

I believe the new fan would need to be IP24 and need to be 15w or less to run is that correct?

Also this is in Zone 1

 

[opps]

The flat one will still allow them to walk through.

The Icon range of fans have 3 doors that slide back when the fan starts. Provided that it is fitted properly it will be spider proof. I have one of the larger models with the humidistat and PIR module.

https://www.airflow.com/Products/axial_fan25/iCON-15-Fans-

A cheaper option might be a fan with a backdraft shutter. The have sprung loaded flaps that prevent the wind blowing through when the fan is turned off.

The need for a low voltage fan is dependent upon which "zone" it is in.

See https://www.envirovent.com/help-and-advice/bathroom-zoning/

If low voltage, you will need to fit a transformer somewhere appropriate.

 

[JohnD]

What sort of vent do you have on the outside?

A cowl vent keeps the weather out and has a single flap that shuts by gravity.

 

[ukmercenary]

The flat one will still allow them to walk through.

The Icon range of fans have 3 doors that slide back when the fan starts. Provided that it is fitted properly it will be spider proof. I have one of the larger models with the humidistat and PIR module.

https://www.airflow.com/Products/axial_fan25/iCON-15-Fans-

A cheaper option might be a fan with a backdraft shutter. The have sprung loaded flaps that prevent the wind blowing through when the fan is turned off.

The need for a low voltage fan is dependent upon which "zone" it is in.

See https://www.envirovent.com/help-and-advice/bathroom-zoning/




If low voltage, you will need to fit a transformer somewhere appropriate.

=======

Hi thanks, for this the airflow fans look very nice but sadly outside my budget. I believe the fan is zone 1. There is a transformer outside the bathroom which the Electrician fitted when I moved in.

I may just get this https://www.blauberg.co.uk/en/100mm...xtractor-fan-bathroom-kitchen-wet-shower-room as it has a mesh.
Do these kinds of fans worth with any (my) transformer? ( I will have to try to work out what model it is but i guess that might not be easy).

 

[ukmercenary]

What sort of vent do you have on the outside?

A cowl vent keeps the weather out and has a single flap that shuts by gravity.

It is one like this https://www.wickes.co.uk/Manrose-Flexible-Cooker-Hood-Kit---150mm-x-1-5m/p/167648...
Will this kind of vent stop cold air coiming thru?

 

[JohnD]

It has what they call a gravity grille, but these are very poor.

A cowl vent is better, rattles less, and will not fall apart in the first strong wind.


https://www.screwfix.com/c/heating-...l_vent&cm_sp=managedredirect-_-hvac-_cowlvent

They come in various sizes

 

[opps]

Hi thanks, for this the airflow fans look very nice but sadly outside my budget.

Yeah, they are expensive. I think you missed my mention of fans with inbuilt back draft shutters though. Back draft shutters can be added inline though if you don't want the added expense of buying a new fan with an inbuilt shutter.

https://www.i-sells.co.uk/1230-back...ng-and-two-shutters-for-use-with-manrose-fans

Alternatively, the following are some with the back draft shutters built in. Most of the big brands (eg Xpelair, Manrose, etc) sell similar fans though.

https://www.epicair.co.uk/backdraught-shutters.html

 

[foxhole]

Damage condensation can do far outways cost of decent fan .