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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Confused about switching for a electric shower extractor fan.
It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice.
So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. |
#2
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Confused about switching for a electric shower extractor fan.
on 13/05/2018, me supposed :
And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. Fit a PIR operated fan. That would cover the bath, or shower, or toilet being used in a room. Mine includes both a built in PIR and a humidity sensor. It comes on if you walk in the door and it continues to run after the bath or shower has been used, until the excess moisture has been dispelled to the outdoors. |
#3
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Confused about switching for a electric shower extractor fan.
Seems alittle bit ad hoc though. I have no fan, I open a window!
Brian -- From the Sofa of Brian Gaff Reply address is active Remember, if you don't like where I post or what I say, you don't have to read my posts! :-) "Harry Bloomfield" wrote in message news on 13/05/2018, me supposed : And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. Fit a PIR operated fan. That would cover the bath, or shower, or toilet being used in a room. Mine includes both a built in PIR and a humidity sensor. It comes on if you walk in the door and it continues to run after the bath or shower has been used, until the excess moisture has been dispelled to the outdoors. |
#4
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Confused about switching for a electric shower extractor fan.
On Sunday, 13 May 2018 11:42:31 UTC+1, me wrote:
It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. You can use a current sensing relay on the mains supply to the shower. http://wiki.diyfaq.org.uk/index.php?...tivated_switch Owain |
#5
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Confused about switching for a electric shower extractor fan.
On Sunday, 13 May 2018 11:56:49 UTC+1, Harry Bloomfield wrote:
Fit a PIR operated fan. That would cover the bath, or shower, or toilet being used in a room. Mine includes both a built in PIR and a humidity sensor. It comes on if you walk in the door and it continues to run after the bath or shower has been used, until the excess moisture has been dispelled to the outdoors. But then you've got the situation where you go in to get the towels to wash, open a window, kill a fly etc., and the damn thing turns on unnecessarily for half an hour! It just seems to me this hasn't been thought through properly. There should be a connection in the shower unit provided by the manufaturer which provides power when the electric shower is turned on. It's only an extra ten or twenty watts after all so you wouldn't need to uprate the shower cable. Anyway, reading around a bit it appears that most fans are switched from the light switch and I'm not sure how that gets past building control when it can obviously be left off when showering? |
#6
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Confused about switching for a electric shower extractor fan.
me brought next idea :
But then you've got the situation where you go in to get the towels to wash, open a window, kill a fly etc., and the damn thing turns on unnecessarily for half an hour! As you say, 20watts running for 20 minutes - so what! It just seems to me this hasn't been thought through properly. There should be a connection in the shower unit provided by the manufaturer which provides power when the electric shower is turned on. It's only an extra ten or twenty watts after all so you wouldn't need to uprate the shower cable. If the shower in use were the only time the fan might be needed, I agree, but for most people it is needed when the bathroom is occupied, so an occupation switch (PIR) works better. Anyway, reading around a bit it appears that most fans are switched from the light switch and I'm not sure how that gets past building control when it can obviously be left off when showering? |
#7
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Confused about switching for a electric shower extractor fan.
On Sunday, 13 May 2018 14:04:40 UTC+1, wrote:
You can use a current sensing relay on the mains supply to the shower. http://wiki.diyfaq.org.uk/index.php?...tivated_switch Owain I was an electronics engineer but my days of being bothered to cobble together electronic circuits are well gone. The principal is what I was after though. I just wish the shower manufacturer would build something into the shower itself. All it would need is an extra output on the shower power switch and a bit of 1mm T&E could be run from it to the fan...job done. |
#8
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Confused about switching for a electric shower extractor fan.
On Sunday, 13 May 2018 14:13:25 UTC+1, Harry Bloomfield wrote:
If the shower in use were the only time the fan might be needed, I agree, but for most people it is needed when the bathroom is occupied, so an occupation switch (PIR) works better. Ah right. In my case though it's just a shower room, nothing else. |
#9
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Confused about switching for a electric shower extractor fan.
On Sun, 13 May 2018 06:14:26 -0700 (PDT)
me wrote: On Sunday, 13 May 2018 14:04:40 UTC+1, wrote: You can use a current sensing relay on the mains supply to the shower. http://wiki.diyfaq.org.uk/index.php?...tivated_switch Owain I was an electronics engineer but my days of being bothered to cobble together electronic circuits are well gone. The principal is what I was after though. I just wish the shower manufacturer would build something into the shower itself. All it would need is an extra output on the shower power switch and a bit of 1mm T&E could be run from it to the fan...job done. You could join into the output side of the switch with some suitably sized cable, take that to a fused spur and then power the fan off that. I've always thought that an auxiliary contact on the shower switch would be the easiest solution. |
#10
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Confused about switching for a electric shower extractor fan.
On 13/05/2018 11:42, me wrote:
It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. Put the fan on it's own switch. Turn on fan when you want the fan on. Turn off after use. -- Adam |
#11
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Confused about switching for a electric shower extractor fan.
On Sun, 13 May 2018 11:42:29 +0100, me wrote:
It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. I thought the regs only needed fans in bathrooms with no window? In which case you'd always have the light on unless you were having kinky sex in the shower with an ugly mistress. -- Having swallowed the most amount of semen ever officially recorded Michelle Monaghan had 1.7 pints (0.96 liter) of semen pumped out of her stomach in Los Angeles in July 1991. |
#12
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Confused about switching for a electric shower extractor fan.
Indeed, if you're living in a house so small there's no outside wall on your bathroom, just commit suicide, you may aswell be in a jail cell.
On Sun, 13 May 2018 13:58:41 +0100, Brian-Gaff wrote: Seems alittle bit ad hoc though. I have no fan, I open a window! Brian -- Los Angeles's full name is €śEl Pueblo de Nuestra Senora la Reina de los Angeles de Porciuncula€ť and can be abbreviated to 3.63% of its size, €śL.A.€ť |
#13
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Confused about switching for a electric shower extractor fan.
On 13/05/2018 15:49, Jimmy Wilkinson Knife wrote:
On Sun, 13 May 2018 11:42:29 +0100, me wrote: It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. I thought the regs only needed fans in bathrooms with no window?* In which case you'd always have the light on unless you were having kinky sex in the shower with an ugly mistress. Why would anyone have an ugly mistress? Come on you have not thought this one through have you? -- Adam |
#14
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Confused about switching for a electric shower extractor fan.
On Sun, 13 May 2018 16:48:38 +0100, ARW wrote:
On 13/05/2018 15:49, Jimmy Wilkinson Knife wrote: On Sun, 13 May 2018 11:42:29 +0100, me wrote: It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. I thought the regs only needed fans in bathrooms with no window? In which case you'd always have the light on unless you were having kinky sex in the shower with an ugly mistress. Why would anyone have an ugly mistress? Come on you have not thought this one through have you? Maybe she has other qualities? -- McMurphy fell 12 stories, hitting the pavement like a paper bag filled with vegetable soup. |
#15
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Troll-feeding Senile Idiot Alert!
On Sun, 13 May 2018 16:48:38 +0100, ARW, another notorious troll-feeding
idiot, blathered: I thought the regs only needed fans in bathrooms with no window?* In which case you'd always have the light on unless you were having kinky sex in the shower with an ugly mistress. Why would anyone have an ugly mistress? Come on you have not thought this one through have you? The poor sociopathic ****** does not have ANY mistress, idiot! ALL he has is the idiots on Usenet that will take every single absolutely idiotic bait of his! |
#16
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Confused about switching for a electric shower extractor fan.
On 13/05/2018 17:26, Jimmy Wilkinson Knife wrote:
On Sun, 13 May 2018 16:48:38 +0100, ARW wrote: On 13/05/2018 15:49, Jimmy Wilkinson Knife wrote: On Sun, 13 May 2018 11:42:29 +0100, me wrote: It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. I thought the regs only needed fans in bathrooms with no window?* In which case you'd always have the light on unless you were having kinky sex in the shower with an ugly mistress. Why would anyone have an ugly mistress? Come on you have not thought this one through have you? Maybe she has other qualities? You have never been married and had a mistress have you? I have. -- Adam |
#17
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Confused about switching for a electric shower extractor fan.
On Sun, 13 May 2018 18:52:13 +0100, ARW wrote:
On 13/05/2018 17:26, Jimmy Wilkinson Knife wrote: On Sun, 13 May 2018 16:48:38 +0100, ARW wrote: On 13/05/2018 15:49, Jimmy Wilkinson Knife wrote: On Sun, 13 May 2018 11:42:29 +0100, me wrote: It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. I thought the regs only needed fans in bathrooms with no window? In which case you'd always have the light on unless you were having kinky sex in the shower with an ugly mistress. Why would anyone have an ugly mistress? Come on you have not thought this one through have you? Maybe she has other qualities? You have never been married and had a mistress have you? I have. You managed to find TWO worthwhile women!? In the UK?! -- Steve Ryder covering the US Masters: "Ballesteros felt much better today after a 69 yesterday." |
#18
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Confused about switching for a electric shower extractor fan.
On 13/05/2018 19:02, Jimmy Wilkinson Knife wrote:
On Sun, 13 May 2018 18:52:13 +0100, ARW wrote: On 13/05/2018 17:26, Jimmy Wilkinson Knife wrote: On Sun, 13 May 2018 16:48:38 +0100, ARW wrote: On 13/05/2018 15:49, Jimmy Wilkinson Knife wrote: On Sun, 13 May 2018 11:42:29 +0100, me wrote: It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. I thought the regs only needed fans in bathrooms with no window?* In which case you'd always have the light on unless you were having kinky sex in the shower with an ugly mistress. Why would anyone have an ugly mistress? Come on you have not thought this one through have you? Maybe she has other qualities? You have never been married and had a mistress have you? I have. You managed to find TWO worthwhile women!?* In the UK?! Have you found one woman? -- Adam |
#19
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Troll-feeding Senile Idiot Alert!
On Sun, 13 May 2018 18:52:13 +0100, ARW, another obnoxious troll-feeding
idiot, blathered: Maybe she has other qualities? You have never been married and had a mistress have you? EXACTLY! That's why the miserable attention whore, troll and ****** NEEDS morons like you to keep feeding him! |
#20
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Confused about switching for a electric shower extractor fan.
Brian-Gaff wrote
Seems alittle bit ad hoc though. I have no fan, I open a window! I have no fan either and don’t bother to open the window, just leave the door open and that works fine even when I have the door closed when using it in winter to keep it warmer with a fan heater on in there. We don’t have the silly rule about not having stuff plugged in in there and in fact the one I use most of the time is a combination shower room and laundry with the washing machine in it. "Harry Bloomfield" wrote in message news on 13/05/2018, me supposed : And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. Fit a PIR operated fan. That would cover the bath, or shower, or toilet being used in a room. Mine includes both a built in PIR and a humidity sensor. It comes on if you walk in the door and it continues to run after the bath or shower has been used, until the excess moisture has been dispelled to the outdoors. |
#21
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Confused about switching for a electric shower extractor fan.
On Sun, 13 May 2018 20:11:31 +0100, ARW wrote:
On 13/05/2018 19:02, Jimmy Wilkinson Knife wrote: On Sun, 13 May 2018 18:52:13 +0100, ARW wrote: On 13/05/2018 17:26, Jimmy Wilkinson Knife wrote: On Sun, 13 May 2018 16:48:38 +0100, ARW wrote: On 13/05/2018 15:49, Jimmy Wilkinson Knife wrote: On Sun, 13 May 2018 11:42:29 +0100, me wrote: It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. I thought the regs only needed fans in bathrooms with no window? In which case you'd always have the light on unless you were having kinky sex in the shower with an ugly mistress. Why would anyone have an ugly mistress? Come on you have not thought this one through have you? Maybe she has other qualities? You have never been married and had a mistress have you? I have. You managed to find TWO worthwhile women!? In the UK?! Have you found one woman? One woman or one worthwhile woman? -- My wife sat down on the couch next to me as I was changing channels. She asked, what's on TV? I said, Dust. And then the fight started... |
#22
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Confused about switching for a electric shower extractor fan.
On 13/05/2018 11:42, me wrote:
It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? That's what I do. It's only a couple of 6 watt CFLs (and not an electric shower, apart from the pump). --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
#23
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Troll-feeding Senile Idiot Alert!
On Sun, 13 May 2018 20:11:31 +0100, ARW, another obnoxious troll-feeding
idiot, blathered: You managed to find TWO worthwhile women!?* In the UK?! Have you found one woman? Nope, but he found some senile morons like you that keep feeding him which compensates for the ******'s mishap! |
#24
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Troll-feeding Senile Idiot Alert!
On 13/05/2018 21:23, Peeler wrote:
On Sun, 13 May 2018 20:11:31 +0100, ARW, another obnoxious troll-feeding idiot, blathered: You managed to find TWO worthwhile women!?Â* In the UK?! Have you found one woman? Nope, but he found some senile morons like you that keep feeding him which compensates for the ******'s mishap! Maybe he could tell you about his mother. -- Adam |
#25
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Confused about switching for a electric shower extractor fan.
In article ,
Harry Bloomfield writes: on 13/05/2018, me supposed : And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. Fit a PIR operated fan. That would cover the bath, or shower, or toilet being used in a room. Mine includes both a built in PIR and a humidity sensor. It comes on if you walk in the door and it continues to run after the bath or shower has been used, until the excess moisture has been dispelled to the outdoors. I did a shower room for someone else. For that, the fan is on a run-on timer with the light as usual, but to get a longer run after a shower, it's also triggered by a pipe stat on the shower hot feed, so it will stay on until the pipe cools. That part of pipe has an 8mm parallel pipe which snakes up behind the bathroom mirror, so that when you use the shower, the mirror is heated. When the shower is finished, this loop up behind the mirror convects via the piece of pipe with the pipe stat on it, to cool that pipe down. When I get around to it, I will write this up with diagrams. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
#26
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Confused about switching for a electric shower extractor fan.
"ARW" wrote in message ... On 13/05/2018 11:42, me wrote: It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. Put the fan on it's own switch. Turn on fan when you want the fan on. Turn off after use. Too primitive if you want the fan to run for different times after having a shower, multiple showers in a row with different people making the bathroom rather wetter and when you just want to pump the smell out after taking a dump after a decent curry the night before etc. Makes a lot more sense to have a PIR, shower use sensor if its a primitive electric shower, and humidity sensor so that it stops when the bathroom is dry enough again etc and automatically handles very humid weather and very dry weather in summer, if you lot ever get anything like that. |
#27
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Confused about switching for a electric shower extractor fan.
"Jimmy Wilkinson Knife" wrote in message news On Sun, 13 May 2018 18:52:13 +0100, ARW wrote: On 13/05/2018 17:26, Jimmy Wilkinson Knife wrote: On Sun, 13 May 2018 16:48:38 +0100, ARW wrote: On 13/05/2018 15:49, Jimmy Wilkinson Knife wrote: On Sun, 13 May 2018 11:42:29 +0100, me wrote: It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. I thought the regs only needed fans in bathrooms with no window? In which case you'd always have the light on unless you were having kinky sex in the shower with an ugly mistress. Why would anyone have an ugly mistress? Come on you have not thought this one through have you? Maybe she has other qualities? You have never been married and had a mistress have you? I have. You managed to find TWO worthwhile women!? In the UK?! He's happy to **** anything that isnt actually dead. |
#28
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Troll-feeding Senile Idiot Alert!
On Sun, 13 May 2018 21:43:02 +0100, ARW, another notorious troll-feeding
idiot, blathered: Nope, but he found some senile morons like you that keep feeding him which compensates for the ******'s mishap! Maybe he could tell you about his mother. The abnormal attention whore will tell you anything to get attention! Get a clue, finally! tsk |
#29
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Confused about switching for a electric shower extractor fan.
Andrew Gabriel formulated the question :
I did a shower room for someone else. For that, the fan is on a run-on timer with the light as usual, but to get a longer run after a shower, it's also triggered by a pipe stat on the shower hot feed, so it will stay on until the pipe cools. That part of pipe has an 8mm parallel pipe which snakes up behind the bathroom mirror, so that when you use the shower, the mirror is heated. When the shower is finished, this loop up behind the mirror convects via the piece of pipe with the pipe stat on it, to cool that pipe down. An interesting way of doing it, thanks.. |
#30
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Confused about switching for a electric shower extractor fan.
ARW wrote:
On 13/05/2018 11:42, me wrote: It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. Put the fan on it's own switch. Turn on fan when you want the fan on. Turn off after use. That is the remarkably primitive but transparent solution that I use. Seeing the fan has an overrun timer there is a neon on the ceiling switch for disambiguation. -- Roger Hayter |
#31
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Confused about switching for a electric shower extractor fan.
On Sun, 13 May 2018 03:42:29 -0700 (PDT), me wrote:
It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Don't the regs also specify switch in the power feed to the shower unit? Normally pull cord jobbie. You can pick up a switched (and permenant live for any run on) in that switch. Both of these would need to go through individual FCU's to protect the fan wiring and a fan switch to ensure proper isloation when working on the fan. -- Cheers Dave. |
#32
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Confused about switching for a electric shower extractor fan.
On 13/05/2018 23:45, Roger Hayter wrote:
ARW wrote: On 13/05/2018 11:42, me wrote: It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. Put the fan on it's own switch. Turn on fan when you want the fan on. Turn off after use. That is the remarkably primitive but transparent solution that I use. Seeing the fan has an overrun timer there is a neon on the ceiling switch for disambiguation. I can also turn my lights on separately when I need to with the "other switch". I have decided after much thought, to call the "other switch" the light switch. -- Adam |
#33
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Confused about switching for a electric shower extractor fan.
ARW wrote:
On 13/05/2018 23:45, Roger Hayter wrote: ARW wrote: On 13/05/2018 11:42, me wrote: It seems to me that ideally the shower extractor fan should come on automatically when the shower is switched on using the power control on the shower unit itself. But I don't see being able to do that because it would involve getting into the shower unit and connecting to the switched side of the shower unit switch. Now I could probably do this but it seems it's not what is normal practice. So what's the normal way of doing things? If I connect to operate from the light switch then what about in the daytime when you use the shower and want the extractor running but don't need the light on? Is it just expected that any time you use a shower you must have the light on no matter the time of day? And as the regs require this ventilation when the shower is in use surely there's no point operating the extractor from a light switch because then it doesn't have to be used. All seems odd to me and as I said...I'm confused. Put the fan on it's own switch. Turn on fan when you want the fan on. Turn off after use. That is the remarkably primitive but transparent solution that I use. Seeing the fan has an overrun timer there is a neon on the ceiling switch for disambiguation. I can also turn my lights on separately when I need to with the "other switch". I have decided after much thought, to call the "other switch" the light switch. I have two! I call them the switch for the main lights and the switch for the recess lights. Why, I leave as an exercise for the reader. They are quite near each other, but it is far from the end of the world if one operates the wrong one(s). -- Roger Hayter |
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