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Toilet extraction fan required?

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Discuss Toilet extraction fan required? in the UK Electrical Forum area at ElectriciansForums.net

A

Andystraughan

On a house refurb at the minute and the joiner (who knows it all) is insisting that the downstairs loo requires a extraction fan. Its a tiny room toilet and sink. No windows and approx 3 metre away from any outside wall.

there is an extraction fan going in the up stairs ensuite and main bathroom which both have showers

is is this required?

any advice or a link to the correct building regs would be greatly appreciated

Andy
 
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ian.settle1 said:
Thought it was in the building regs that if there was no form of natural ventilation fitted (ie a window that opens) then some sort of mechanical ventilation had to be installed (eg a fan)
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put it this way ian, only dirty b&ggers would not consider some kind of ventilation in a very small toilet in the middle of a house with no window lol
 
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Corpy76 said:
Having a fan installed would create negative pressure and not allow the stench of your dump to escape the room, ie air and therefore smells as well enters the room vie gaps under door etc but exits via fan.
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only if the door is sealed!
i usually ask if the want a louvered vent installed in the door [ElectriciansForums.net] Toilet extraction fan required?
 
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MDJ said:
Ask yourself this first. "would you have a dump in there and then 5 mins later let a visitor use the loo after" answers on the back of a postage stamp please.
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Since when has anyone been allowed to take a dump in the downstairs toilet?! That was (probably still is) a thrashing offence according to my old mum!
 
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Corpy76 said:
Sry I ment escape into the rest of the house ie air is traveling into to toilet though the gaps under so the smell can't get through that way as scent is carried by air! So the smell can only leave the room via the fan!
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To get the fan to work best you need to allow air to enter the room for the fan to expel to the outside.

Fit the fan on the opposite wall to the bog door and fit the bog door making sure it swings open & shut freely.

Start the fan and slowly close the door until you feel the suction of the fan pulling the door shut.

At this point, measure the gap between edge of door and the door frame length x width and calculate the area of this gap. This is the size of the vent to fit into the door at a low level.
 
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Geordie Spark said:
To get the fan to work best you need to allow air to enter the room for the fan to expel to the outside.

Fit the fan on the opposite wall to the bog door and fit the bog door making sure it swings open & shut freely.

Start the fan and slowly close the door until you feel the suction of the fan pulling the door shut.

At this point, measure the gap between edge of door and the door frame length x width and calculate the area of this gap. This is the size of the vent to fit into the door at a low level.
Click to expand...

All rooms have reasonable ventilation otherwise you would head into the loo with your sun newspaper and by the time you got to Dear Deidre. You would have suffocated.
 
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Corpy76 said:
All rooms have reasonable ventilation otherwise you would head into the loo with your sun newspaper and by the time you got to Dear Deidre. You would have suffocated.
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I agree, but here we're not talking about adventitious ventilation - we're talking about having the right amount of airflow to make the fan work as it should, and that little bit of info. I posted is not a figment of my imagination either.
 
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