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OfflineOysterFace
phileomycophagist


Registered: 06/13/12
Posts: 154
Last seen: 8 years, 10 months
Why is impeller type good, and ultrasonic bad????
    #16840360 - 09/13/12 10:22 AM (12 years, 4 months ago)

ive been reading through RR notes and he always sugests using an impeller style humidifier.  i have an ultrasonic already and dont want to buy a new humidifier..  why is there a big difference??  what is the disadvantage of the ultrasonic???


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  OysterFace's Bulk Cubensis TEK

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InvisibleDynGBreeD
┌∩┐(◣_◢)┌∩┐

Registered: 01/15/11
Posts: 3,639
Re: Why is impeller type good, and ultrasonic bad???? [Re: OysterFace]
    #16840378 - 09/13/12 10:25 AM (12 years, 4 months ago)

Impeller also offer's a small amount of FAE.


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OfflineHybridprX
Biodegrader of coir
Male User Gallery


Registered: 01/29/08
Posts: 2,588
Loc: Canada Flag
Last seen: 7 years, 4 months
Re: Why is impeller type good, and ultrasonic bad???? [Re: OysterFace]
    #16840387 - 09/13/12 10:27 AM (12 years, 4 months ago)

The ultra-sonics admit to much vapour and can cause pooling water to form.

They'll work but you need to modify it using pop bottles or similar containers to cutt down the amount of moisture going into the fruiting chamber.

As where a coolmist (impeller style) admits much less moisture and can be adjusted/programmed
to specific humidity levels.

The one I used could only hit 80% but that is fine for mono tubs/casings.

They dont put off a smaller amount of F.A.E, they put off more F.A.E which can lead to a dried substrate if the tubing is pointed downards and not set on a timer.



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Edited by HybridprX (09/13/12 10:29 AM)

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OfflineOysterFace
phileomycophagist


Registered: 06/13/12
Posts: 154
Last seen: 8 years, 10 months
Re: Why is impeller type good, and ultrasonic bad???? [Re: DynGBreeD]
    #16840409 - 09/13/12 10:30 AM (12 years, 4 months ago)

my ultrasonic is adjustable as well... and i use a small fan to move air from time to time... am i good??  are the impeller types really much better if i can adjust my ultrasonic??


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  OysterFace's Bulk Cubensis TEK

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OfflineHybridprX
Biodegrader of coir
Male User Gallery


Registered: 01/29/08
Posts: 2,588
Loc: Canada Flag
Last seen: 7 years, 4 months
Re: Why is impeller type good, and ultrasonic bad???? [Re: OysterFace]
    #16840418 - 09/13/12 10:32 AM (12 years, 4 months ago)

If you can adjust the humidity it is fine.

I was going on information I read about ultra-sonics in the original pf tek like 7-8 years ago, defiantly probably made some advances in the models heh.


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InvisibleRahz
Alive Again
Male


Registered: 11/10/05
Posts: 10,315
Re: Why is impeller type good, and ultrasonic bad???? [Re: HybridprX]
    #16840517 - 09/13/12 10:53 AM (12 years, 4 months ago)

An ultrasonic running full time can swamp a casing. With a variable repeat cycle timer an ultrasonic can be quite useful, though FAE will still need to be managed. I grow in something similar to a monotub sans polyfil with an ultrasonic running 2 minutes on 15 minutes off and adjust as needed. A cool mist is better in a larger environment (mini-greenhouse) where the droplets have time to evaporate and raise humidity.


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rahz

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