Heat is lowering humidity, cool mist the solution? - Mushroom Cultivation

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Visigoth
enthusiast

Registered: 11/28/01
Posts: 481
Last seen: 10 years, 10 months

Heat is lowering humidity, cool mist the solution?

#563992 - 02/26/02 04:52 PM (21 years, 9 months ago)

My friend has a incubator he was using a heating pad to heat. The heating pad died so he bought a heater/fan to blow on it. It's hooked up to a timer so it doesn't fry the jars, only problem is it's warming up the rest of the room when it's on and the humidity is dropping in the grow chamber. If he switches from a peroxide jar bubble stone method to a cool mist humidifer running 24/7 will this correct the problem. Size of terrarium is 36 gallons. Thanks!!!

Vis

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"15 minutes in freezing conditions?!?! You'd become a popsicle before you made that!!!"

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Champion des Champignons
long standing member;)

Registered: 07/26/00
Posts: 2,680
Loc: Alba

Re: Heat is lowering humidity, cool mist the solut

[Re: Visigoth]
#564522 - 02/27/02 03:07 AM (21 years, 9 months ago)

Heat tends to increase temp not lower it, it's more likely the fan is blowing away the humidity through any holes in the grow chamber. Bubblers are usually used to provide air exchange rather than humidity, although it will produce some. Is it the only source of humidity?

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hmmm........

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Anno
Experimenter

Registered: 06/17/99
Posts: 24,166
Loc: my room
Last seen: 5 days, 1 hour

Re: Heat is lowering humidity, cool mist the solut

[Re: Champion des Champignons]
#564526 - 02/27/02 03:37 AM (21 years, 9 months ago)

>Heat tends to increase temp not lower it

Yeah, there is some thruth in this :wink:

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puscle
genius of love

Registered: 01/06/01
Posts: 4,539
Loc: NY

Re: Heat is lowering humidity, cool mist the solution?

[Re: Visigoth]
#564527 - 02/27/02 03:37 AM (21 years, 9 months ago)

Try wet perlite.

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Nomez
journeyman

Registered: 12/17/01
Posts: 71
Last seen: 21 years, 7 months

Re: Heat is lowering humidity, cool mist the solution?

[Re: puscle]
#564666 - 02/27/02 08:59 AM (21 years, 9 months ago)

See.. the thing is... warm air holds more moisture... rh is a ratio of moisture in the air to the amount of moisture it can hold. if the air is cooler it will have a higher rh becuase the air holds less moisture. but at different temps you could have different rh's and still have the same amount of moisture in the air...

ive been trying to piece together this damn rh thing in my head for the last 2 weeks....

just remember if it is cooler in the chamer the rh should be much higher... if it is a lot warmer in the chamer the rh doesnt nessicarily need to be as high... for example if you had it 90 degrees (AHHHH) in there you wouldnt the same rh as if it were 80 degrees or 70... although im not sure how big the change in rh is with smaller changes in temp

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always impossible?
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Edited by Nomez (02/27/02 09:04 AM)

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Anno
Experimenter

Registered: 06/17/99
Posts: 24,166
Loc: my room
Last seen: 5 days, 1 hour

Re: Heat is lowering humidity, cool mist the solution?

[Re: Nomez]
#564673 - 02/27/02 09:04 AM (21 years, 9 months ago)

Nomez, you?re on the right track. Actually air doesn?t "hold" moisture, water vapor and air are coexistent, it?s not like air would be absorbing moisture.

Read http://www.ems.psu.edu/~fraser/Bad/BadFAQ/BadCloudsFAQ.html for more information.

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Grow Mushrooms from Spores - PF-Tek for Simple Minds

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