Isolator on extractor fan

[JohnD]

With luck your hearing will go as you age, and you won't notice it.

 

[securespark]

Pictures of the fan and the situation would be a great help.

 

[JohnW2]

The simple choice is, either a slight bit of noise from a fan, or a bathroom filled with moisture and mould developing.

Up to a point, but many of those expecting an extractor fan to cure their mould problems will end up disappointed.

Probably more important is to try to avoid their being cold walls and ceiling when there is steam around (e.g. when having showers) - since once water vapour has condensed on those surfaces (there to promote mould), a fan will do almost nothing to remove it!

 

[Harry Bloomfield]

Probably more important is to try to avoid their being cold walls and ceiling when there is steam around (e.g. when having showers) - since once water vapour has condensed on those surfaces (there to promote mould), a fan will do almost nothing to remove it!

Few will enjoy having a shower in a cold room, so it's a fair assumption the room will be reasonably warm - which just needs the use of a fan, to extract the moisture, before it eventually condenses out on the walls.

 

[JohnW2]

Few will enjoy having a shower in a cold room, so it's a fair assumption the room will be reasonably warm - which just needs the use of a fan, to extract the moisture, before it eventually condenses out on the walls.

It obviously 'depends', but quite a lot of bathrooms and shower rooms, particularly small ones, are fairly poorly heated, not uncommonly only by a heated towel rail (or, sometimes, the dreaded underfloor heating!).

Whatever the theoretical discussions, I have certainly seen many cases in which an extractor fan, alone, has not cured a mould problem.

 

[Harry Bloomfield]

Whatever the theoretical discussions, I have certainly seen many cases in which an extractor fan, alone, has not cured a mould problem.

Ignoring personal comfort, concerned just with mould - if the choice were between heat, or a fan, then I would choose the fan, as the more effective solution.

 

[JohnW2]

... if the choice were between heat, or a fan, then I would choose the fan, as the more effective solution.

I wasn't suggesting a choice ('either/or'). Rather, I was suggesting that if one installs only a fan without also ensuring that the walls and ceiling are pretty warm when taking showers, one is quite likely to end up disappointed in relation to the effect on mould.

 

[JohnD]

Up to a point, but many of those expecting an extractor fan to cure their mould problems will end up disappointed.

Probably more important is to try to avoid their being cold walls and ceiling when there is steam around (e.g. when having showers) - since once water vapour has condensed on those surfaces (there to promote mould), a fan will do almost nothing to remove it!

When I had CWI installed, the bathroom (on a corner) got much warmer and drier, with the same existing radiator and fan. I don't even get mist on the bathroom mirror now.

 

[Harry Bloomfield]

I wasn't suggesting a choice ('either/or'). Rather, I was suggesting that if one installs only a fan without also ensuring that the walls and ceiling are pretty warm when taking showers, one is quite likely to end up disappointed in relation to the effect on mould.

I was trying to point out, that the extraction of moist air, is more important than warmth in the fabric.

 

[SUNRAY]

I was trying to point out, that the extraction of moist air, is more important than warmth in the fabric.

That assumes the air change is fast enough and adequate fresh air entering otherwise warm surfaces play an important role.