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#272455 25-Jun-2020 18:18
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As the title says, I'm looking at installing a bathroom extractor fan and are looking for some recommendations.

 

I've been looking at this one WEISS ER08P INTELLI-FLOW EXTRACTION SYSTEM - anyone have this and can share their thoughts on it?

 

Keen to hear all thoughts!

 

Thanks!

 

 


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  #2512477 25-Jun-2020 19:31
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What installation position / restrictions? Do you need to do through the wall, do you have a ceiling cavity, do you have eaves you can vent through?




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  #2512486 25-Jun-2020 19:58
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Super simple installation I'm thinking... Ceiling to outside vent. Plenty of room in ceiling cavity and access to outside house. Standard 70s style height ceiling. 


 
 
 
 


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  #2512490 25-Jun-2020 20:07
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If you have a ceiling vent then it usually goes through the ceiling cavity and out through the eaves if there's room.

 

I've used Simx Mixed flow fans and Fantech Provent. Much better than the small fans you can get in the hardware store. The one you linked to says 63~650m3/hr which is a huge range, and I'd want to know how much volume trickle puts through. Looks like it's got good features, but you might need more ducting. Definitely worth looking at.

 

The ones I use are pretty grunty and 150mm models do about 400 m3 per hour. Standard two speed fans, work well, reliable. They don't have the 5 year warranty of the one you linked to. From memory supply and installation was $600 when I had the old one replaced, initial install will cost more to wire to switchboard, fit switch, etc.


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  #2512492 25-Jun-2020 20:16
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 I have installed couple of the below 200mm silenced extraction fans in a new house build. I bought the acoustic ducting from mingfans as well. He has a online trademe store and gave me a demo at his warehouse in Auckland between the silenced version and non silenced version. Both had really good sucking power. I also got the timers installed through him in the fan units.

 

http://www.mingfans.co.nz/index.php/product/index/id/99.html

 

http://www.mingfans.co.nz/index.php/product/index/id/52.html

 

 

 

 





Do whatever you want to do man.

  

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  #2512499 25-Jun-2020 20:19
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Ming fans has been around a good while. I might get one of their fans when this one fails - they all fail eventually. The challenge is getting it wired to the existing three position switch.


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  #2512500 25-Jun-2020 20:21
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Don't know if this helps - but to put bathroom extractor in our 1960s home with quite a low pitch roof and quite wide eaves, the ceiling height was about 300mm higher than the soffits, so it was possible to put a vent at the top of the exterior-facing wall in the bathroom, run large diameter (200mm?) ducting to a fan suspended from the rafters above the soffit, then to a vent under the soffit.  Total length of ducts is short - maybe 600mm. Couldn't see what was going on in that space - so drilled a small hole in the soffit and poked an endoscope in to have a look.  The fan unit could just fit through the hole needed to fit exterior vent so poking it through and attaching the ducting was a bit of a mission - as I couldn't get both hands through the hole - but it was doable if you swear at it enough.  Alternative would have been a hole in the roof, or feeding squashed ducting through only about a 100mm gap between the top wall plate and roof battens, which would restrict airflow too much.  Anyway - it works, relatively quiet as the fan unit isn't directly attached to any structure, no condensation in the bathroom at all now.  Could possibly be improved by adding another vent to allow air to be drawn in - the fan draws enough negative pressure to pull the door ajar if it's not latched.




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  #2512508 25-Jun-2020 20:31
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Thanks for everyones input so far!


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