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Cool versus Warm Mist Auto Set Up


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#1 TheJackal

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Posted 29 October 2006 - 12:34 PM

FOAF reports second flush and adds cool mist 24/7 air exchange (pic 1). FOAF runs cool mist 24/7.

FOAF notices cool mist lowers terrarium temp to 70F with no condensation (pic 2). FOAF adds aquarium heater to cool mist set up to raise temp (pic 3). Temp now at 77F with new set up and with visible condensation (pics 4 & 5).

FOAF wonders if warm 77F misting is not a good idea. Sub does not seem to be getting too wet, although condensation can always be seen in terrarium.

FOAF thanks you in advance for your expertise!

Cheers!

Jackal

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Edited by TastyBeverage, 17 April 2010 - 06:16 PM.
fixed formatting

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#2 roc

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Posted 29 October 2006 - 07:39 PM

Koolmist is the way!

#3 golly

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Posted 29 October 2006 - 07:51 PM

No need to run the humidifier 24/7...30mins on 3 hrs off is still plenty imo.
You would have less overall cooling effect with the 3hr breaks ..An average temp of 72-78F is ideal...
Got some nice pins there...:eusa_danc

#4 TheJackal

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Posted 29 October 2006 - 08:46 PM

FOAF thanks you for your expertise!

#5 jrogers311

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Posted 29 October 2006 - 10:27 PM

The shrooms will tell you if they are too wet. Excessive humidity will often show in excess white fuzz at the base of the stems. Best of luck!

#6 TheJackal

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Posted 31 October 2006 - 11:59 AM

The shrooms will tell you if they are too wet. Excessive humidity will often show in excess white fuzz at the base of the stems. Best of luck!


Will they bounce back after white fuzz appears if humidity is cut down?

#7 Mosach

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Posted 31 October 2006 - 01:32 PM

Sweet setup dude! Where did you get the setup? did you order it or make it?

#8 yerbaadam

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Posted 31 October 2006 - 04:52 PM

aNYone here use a tropicair humidifier? -Are they any good?

>> biGGest hUGS- yer FriENd aND seRVAnt in thIS dRippY anD sPEctraL plAce we Are ALIVE in aLWAys >>nAScaR DENdriTE duDLEy

#9 TheJackal

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Posted 31 October 2006 - 10:39 PM

Sweet setup dude! Where did you get the setup? did you order it or make it?


It was a newb buy (Mycogarden) by FOAF. In hindsight, FOAF should have built from scratch or tried the low tech approaches. After adding cool mist, FOAF reported way too much humidity and for 3rd+ flushes will spawn onto some poo and not go overboard with humidity. FOAF's fruiting chamber is small and can only hold a 10"x3" pie pan, but produces plenty for FOAF's personal use and some sharing.

For this type of terrarium, a modified plastic water cooler dispenser would be better, as the terrarium dome is a bit flimsy. The set up is basically one bucket fitted with a fish tank heater and with another bucket on top serving as an incubator and then as a fruiting chamber with the dome cover added. One air pump pumps air through clay pebbles for the fruiting chamber and another through a reptile humidifier for added humidity if needed and with the cool mist for air exchange. Below is the diagram of the set up.

Cheers!

Jackal

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#10 TheJackal

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Posted 31 October 2006 - 10:44 PM

aNYone here use a tropicair humidifier? -Are they any good?
>> biGGest hUGS- yer FriENd aND seRVAnt in thIS dRippY anD sPEctraL plAce we Are ALIVE in aLWAys >>nAScaR DENdriTE duDLEy


FOAF uses one in the above set up, but not sure it would work well for a large fruiting chamber. The cool mist set up alone would probably be just fine for providing humidity and air exchange for larger growing chambers, but defer to the experts.

#11 Mosach

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Posted 01 November 2006 - 10:26 AM

What do you think the dome was originally used for? Its a weird shape.

#12 TheJackal

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Posted 02 November 2006 - 03:37 PM

What do you think the dome was originally used for? Its a weird shape.


No idea!

#13 jrogers311

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Posted 02 November 2006 - 08:05 PM

They aren't effected negetively by the white fuzz in my opinion, its just a sign that you can cut back a little on the humidification. Most people would be glad to have that problem!

#14 TheJackal

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Posted 11 November 2006 - 06:17 PM

Everybody seems to know that warm misting of a terrarium is not a good thing. However, I could not find any explanations of why that is, but I think I have figured out why warm misting can be bad.

It relates to the relationship between air temperature, humidity, and dew point. As humidity goes to 100%, the dew point or point at which dew or condensation forms gets closer and closer to the air temperature. So if you have a warm 80 F mist of 100% humid air, the dew point is also about 80 F. This means that anything that is equal to or colder than 80 F will have condensation formed on it when in it comes in contact with such a warm mist air stream.

This is the reason what a terrarium at 78 F will quickly become over saturated with moisture when a 78 F or higher warm mist is introduced. Accordingly, by keeping the air temperature of the mist lower than the temperature of the terrarium, humidity can be increased while minimizing condensation of the substrate.

Does the above explanation seem reasonable?

#15 roc

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Posted 11 November 2006 - 07:39 PM

You are making things to complicated... enjoy the simple things in life!

#16 TheJackal

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Posted 12 November 2006 - 12:30 AM

You are making things to complicated... enjoy the simple things in life!


You are soo right!

Cheers!

Jackal

#17 roc

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Posted 12 November 2006 - 09:30 AM

You are soo right!

Cheers!

Jackal


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#18 golly

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Posted 12 November 2006 - 11:57 AM

I believe your assessment is correct Jackal...The warm mist will indeed condensate on any cooler surface ..In summertime it may also raise the temp higher than optimum..The upside is that mold spores are killed when the water is heated to the steam point....
The Coolmist impeller type seems to be the best bet for large chambers...




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