Thanks for all the replies.
The Soler & Palau fans look really good - I notice from the TLC website a comment that these were previously known as the Vent Axia ACM - looking at the ACM100T it appears to have a better flow rate than the current equivalent from Soler & Palau and can be picked up marginally cheaper so seems likely I will go for that.
I assume I can couple this with a vent similar to the below in the bathroom:
https://www.amazon.co.uk/gp/product/B004X4RKL6/
and an outside vent of some type, all coupled together with flexible ducting?
Does anyone have any recommendations what I fit in terms of backdraught vents? I know you can get external vents with gravity flaps and cowls to prevent them rattling in the wind, is this the way to go or am I best with a plain vent on the outside and fit an inline back draught shutter? If I go with the latter where should this be fitted relative to the fan?
Also on an electrical note, I'd like to wire the fan to come on with the light with an overrun timer, however I don't tend to use the bathroom light through the spring and summer. Is there any way to wire up a timer fan such that it can be triggered by the lights but also fit a separate pull switch to trigger it manually when the lights aren't in use? Or am I over complicating things and should just fit a separate switch for the fan and operate it manually?
The Soler & Palau fans look really good - I notice from the TLC website a comment that these were previously known as the Vent Axia ACM - looking at the ACM100T it appears to have a better flow rate than the current equivalent from Soler & Palau and can be picked up marginally cheaper so seems likely I will go for that.
I assume I can couple this with a vent similar to the below in the bathroom:
https://www.amazon.co.uk/gp/product/B004X4RKL6/
and an outside vent of some type, all coupled together with flexible ducting?
Does anyone have any recommendations what I fit in terms of backdraught vents? I know you can get external vents with gravity flaps and cowls to prevent them rattling in the wind, is this the way to go or am I best with a plain vent on the outside and fit an inline back draught shutter? If I go with the latter where should this be fitted relative to the fan?
Also on an electrical note, I'd like to wire the fan to come on with the light with an overrun timer, however I don't tend to use the bathroom light through the spring and summer. Is there any way to wire up a timer fan such that it can be triggered by the lights but also fit a separate pull switch to trigger it manually when the lights aren't in use? Or am I over complicating things and should just fit a separate switch for the fan and operate it manually?