Newbie who wants to replace bathroom extractor fan

[James]

there speaks the prophet of doom^^^^^. .

That's the problem with maths and physics, sometimes the calculations provide you with information you don't want to hear!!

 

[Tony Reidy]

cobblers. a 230V fan is allowed as long as it's IP44 or better. would you insist on a 12V shower unit in zone 1?

Makes sense but now you mention it a 12 V shower does sound safe

 

[telectrix]

Makes sense but now you mention it a 12 V shower does sound safe

try heating the water with 12V. the amperage would be around 800A. some serious cable size there.

 

[James]

Makes sense but now you mention it a 12 V shower does sound safe

I have come across in injection moulding machines heaters that run on 5v dc. a 1kw heater element drew 200A
maybe all showers should be 5volts, fed off an isolating transformer in an adjacent room (center tap to earth = +/- 2.5v) shower would be considerably safer but the cable size for 2000A would be bigger than the pipework!!!

 

[Octopus]

hi, thanks for the useful info, but i'm interested in getting a manual fan with a higher flow rate. my bathroom has no window and people take long showers, the current fan almost never speeds up and i have to remove the front plate cover every time just to temporarily increase the speed.

the very LAST THING that shower room needs is a manual fan.

Higher through put and longer timer ......

 

[fatah]

don't give up the day job as that video clip shows nothing.

back to my original post - have you checked the "output" from the vent outside?

Also if you don't have any heating is a shower room the steam will be worse...........

the heater was removed and will be replaced.
i havent checked the outside fan and its been left unchecked for around 40 years. maybe all it needs is a good cleaning, i suppose?

 

[fatah]

the very LAST THING that shower room needs is a manual fan.

Higher through put and longer timer ......

i'll try cleaning out the vent/duct and the outside cover, before replacing fan

 

[Octopus]

before replacing fan

With what fan ? How will you decide?

Unless you detail the run of the vent, you won’t have a clue......

 

[Midwest]

Is the 'old' fan broken (not working)?

 

[fatah]

Is the 'old' fan broken (not working)?

it works, but i'd rather a replace it with a higher power one

 

[Bobster]

it works, but i'd rather a replace it with a higher power one

I don't think you're understanding the advice being given here.

If the outlet or ducting taking the air away from the fan is knackered, then a more powerful fan will not help.

The one you have there, from the comments I have read (never used one personally) the fan you have is a decent one.

 

[fatah]

I don't think you're understanding the advice being given here.

If the outlet or ducting taking the air away from the fan is knackered, then a more powerful fan will not help.

The one you have there, from the comments I have read (never used one personally) the fan you have is a decent one.

yeah, i think the duct and exit cover need cleaning out the dust/junk.
its not been cleaned since moved into the house .
but now i wana just replace it because the front plate cover of the fan, got lost/thrown away during the cleaning.

 

[Bobster]

You also need to make sure the duct if there is one is installed correctly, that you haven't got unnecessary length, or have sharp turns in it.

 

[Octopus]

You can lead a horse to water but you can't make it drink ..

 

[Octopus]

You can lead a horse to water but you can't make it drink ..

What a very odd rating to be given by the op.....