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83 posts

Master Geek


  #2513298 27-Jun-2020 00:07
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timmmay:

 

concordnz: Get them to wire fan into your light switch & on a delay off timer. (Whenever the light is on the fan is running)
This is increasingly common & recommended practice in some areas.

Think of it like a Turbo Vehicle - which continuez to run on a delay even after you have turned the key off, locked it, & walked away.....

Try and get the 'fan' situated at the 'exit' rather directly attached to the ceiling - this will reduce 'fan noise'.
(& use insulated ducting - to further reduce 'fan noise')

 

That sounds annoying, especially if you have young kids who might be easy to wake. The extractor probably needs to run for 10 - 15 mins after a shower, but you don't want it to run it at all if you're say just brushing your teeth.

 

Manual fan controls are fine. We also have three lighting groups in our bathroom - ceiling, mirror, and LED strip lighting under the vanity.

 

 

 

 

We have a PDL timer module hooked up to ours. Press the button and it runs for a set period of time (ours is set for 10 mins) then turns off (or immediately if the button is pressed again). Has an optional mode where holding the button down will override the timer and cause it to stay on until the button is pressed again, or can also be set to turn on on the first button press, stay on until the button is pressed again then run for the set time period or until the button is pressed again. They make a similar, if more expensive module for PDL Iconic that is configured and can be controlled via Bluetooth. Keeps the fan control separate from the lights, and we have found it to be much more flexible and reliable than a traditional fan timer module (the ones that run both the lights and fan from one switch, but can also be hooked up to a seperate switch for just the fan, leaving the lights as is).


76 posts

Master Geek


  #2513558 27-Jun-2020 10:14
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I can recommend this one - https://www.bunnings.co.nz/hpm-150mm-ducted-inline-fan_p8902950.

 

I did an ensuite reno this time last year and spent quite a bit of time researching extractor fans.

 

Our ensuite is in the centre of the house, and extracts out to under the eaves, which would be 7 metres or more away.

 

This fan has heaps of grunt. We take two showers back to back and there's never any visible steam.

 

I don't notice the breeze from it when I'm in the shower, but you can definitely feel it around your legs when standing in the ensuite, and if I leave the door ajar it will suck it closed. That's with it on the maximum speed. I haven't tried it on the slower speed.

 

We leave it running while we get dressed, but I see that Bunnings also have one with a timer for an extra $40.


 
 
 
 




102 posts

Master Geek


  #2513567 27-Jun-2020 10:37
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beddy:

I can recommend this one - https://www.bunnings.co.nz/hpm-150mm-ducted-inline-fan_p8902950.


I did an ensuite reno this time last year and spent quite a bit of time researching extractor fans.


Our ensuite is in the centre of the house, and extracts out to under the eaves, which would be 7 metres or more away.


This fan has heaps of grunt. We take two showers back to back and there's never any visible steam.


I don't notice the breeze from it when I'm in the shower, but you can definitely feel it around your legs when standing in the ensuite, and if I leave the door ajar it will suck it closed. That's with it on the maximum speed. I haven't tried it on the slower speed.


We leave it running while we get dressed, but I see that Bunnings also have one with a timer for an extra $40.



That one was on my radar as well. I will need to talk to HPM support to ensure it can handle 10 metres ducting.
Thanks for the great suggestion.



102 posts

Master Geek


  #2513569 27-Jun-2020 10:42
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Another option that i have in mind is to install a Cleanaire system. I noticed that its possible to do a DIY and they only supply the heat exchange core. (ducting and other accessories needs to be purchased separately)
Does anyone know the cost of one of those units? Just the unit.
Thanks

16487 posts

Uber Geek


  #2513675 27-Jun-2020 14:34
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Make sure they use stainless screws in the bathroom and outside, so they don't corrode. Simx do a range of fans, and some types you can run a reasonable distance to a soffit, if it isn't close to a soffit




102 posts

Master Geek


  #2513676 27-Jun-2020 14:36
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mattwnz:

Make sure they use stainless screws in the bathroom and outside, so they don't corrode.


Noted
Thanks

158 posts

Master Geek

Trusted
DR

  #2513855 28-Jun-2020 10:57
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beddy:

 

I can recommend this one - https://www.bunnings.co.nz/hpm-150mm-ducted-inline-fan_p8902950.

 

I did an ensuite reno this time last year and spent quite a bit of time researching extractor fans.

 

Our ensuite is in the centre of the house, and extracts out to under the eaves, which would be 7 metres or more away.

 

This fan has heaps of grunt. We take two showers back to back and there's never any visible steam.

 

I don't notice the breeze from it when I'm in the shower, but you can definitely feel it around your legs when standing in the ensuite, and if I leave the door ajar it will suck it closed. That's with it on the maximum speed. I haven't tried it on the slower speed.

 

We leave it running while we get dressed, but I see that Bunnings also have one with a timer for an extra $40.

 

 

I have one of these for our main bathroom with ~4 m run from the internal inlet to outlet under the eaves. Is a very good unit, however one issue that did occur for us this winter (North Canterbury, we get -5'C frosts reasonably often) is that condensation built up in the ducting and the fan started going slower due to the resistance of the large pool of water! I removed all the water, but I'm going to insulate and also put solid support under the ducting with a gradient to stop this happening again.


 
 
 
 




102 posts

Master Geek


  #2513857 28-Jun-2020 11:01
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zenourn:

beddy:


I can recommend this one - https://www.bunnings.co.nz/hpm-150mm-ducted-inline-fan_p8902950.


I did an ensuite reno this time last year and spent quite a bit of time researching extractor fans.


Our ensuite is in the centre of the house, and extracts out to under the eaves, which would be 7 metres or more away.


This fan has heaps of grunt. We take two showers back to back and there's never any visible steam.


I don't notice the breeze from it when I'm in the shower, but you can definitely feel it around your legs when standing in the ensuite, and if I leave the door ajar it will suck it closed. That's with it on the maximum speed. I haven't tried it on the slower speed.


We leave it running while we get dressed, but I see that Bunnings also have one with a timer for an extra $40.



I have one of these for our main bathroom with ~4 m run from the internal inlet to outlet under the eaves. Is a very good unit, however one issue that did occur for us this winter (North Canterbury, we get -5'C frosts reasonably often) is that condensation built up in the ducting and the fan started going slower due to the resistance of the large pool of water! I removed all the water, but I'm going to insulate and also put solid support under the ducting with a gradient to stop this happening again.


I measured yesterday and in my case it will be 10 metres. Definitely i will call a couple of manufacturers tomorrow to see if their fans can do the job.

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