Bathroom condensation

You mention, it was installed 3 yrs ago.........

Have the issues with condensation always been there since install

Or

Started more recently ??

In my experience, I find towel rail(s), don't provide as much heat as a conventional radiator(s) & many a landlord that we are contracted to reverts back to the conventional rad

OK ok before anyone says Ah!!! but Towel Rails / Rads are more aesthetically pleasing to the eye, that of course is true, but aesthetically pleasing does not always mean as equally or better for the job (performance wise)

Have you checked & cleaned out the Mainrose Gold Extractor fan, as extractor fans are dust magnets ??

 

I always install 6" fans as i find that they flow far more air out of bathrooms be it stale air or air when the shower is on and make sure that the timer runs on for a good few minutes after its switched off!
4" fans IMO are no use where a shower is fitted in a room and the cost difference is negligible between the two.

By all means correct me if im wrong but im speaking from personal experience.

Happy fanning
Mr J

 

Pretty much covered above. If you have condensation, you need extra ventilation. That's pretty much it.

Yes, I know that heating the room further will also 'help', but what that tends to do is keep more moisture in the aire - and it'll condense out the first chance it has, such as when the room cools overnight.

It is all pretty self evident. If you, for example, open a window whilst you're showering, you will freeze your bar locks off, BUT you'll have very little condensation 'cos it will all have been vented away. So 'cold' does not always mean 'damp'; 'warm' does not always mean 'dry'.

So, you should either have an extractor on a timer - for a goodly 5 minutes after lights out - or else a humidity-controlled one, but make sure it's sensitive enough.

And cracking open that window at the same time will help too.

 

Would definately suggest going for either a fan with overrun timmer or a humistat model

With a timer fan, you don't usually run this from the ring mains (maybe you can if fused down via an FCU) ?

Timer fan requires nuetral, switched live and permanant live so use 3 core and earth cable, again from the lighting circuit
Experiment with the overrun timing but something like 15-20 mins should clear the steam after showering

Only problem here is that you may not switch on light if showering during the day so then no fan and If you get up during the night for a whaz, switch on the light and you then have the fan running for 20 minutes

I've not used a humistat fan myself but they seem to make sense, taking the above into consideration

 

Is this a chrome plated towel rail or white steel constructed?

 

Does the fan extract through the wall or into the roof?

 

So it seems that you have a 3 core and earth supply to the fan but a fan model with no timer function ?

I take it that just 2 cores are connected to the fan at present with the permanent live terminated
May be worthwhile checking that the fan end of the permanent live is indeed "permanently live"
You can do this simply with a neon screwdriver, test the screwdriver is working first by testing on the fan terminals whilst its running, then test the permanent live

If wiring all seems ok, then a straightforward swap could be an easy option which would improve the condensation problem

http://www.screwfix.com/p/manrose-m...rd-axial-bathroom-extractor-fan-w-timer/62530