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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Frank's easy mini-GH tek: quit worrying about RH! 11
#18322939 - 05/26/13 12:34 PM (10 years, 8 months ago) |
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This is part of my series on how I get things done. I hope it helps!
So I had this posted as part of my spring projects thread. I figured I would move it out to the main forum and go into more detail.
My GH is set up for maximum FAE and high RH at all times. Cubes and other fresh air loving species benefit greatly from this. There are others ways to do this, of course- this is just how I meet the needs of my mushrooms.
I use an ultrasonic humidifier and a filter/wick-type evaporative humidifier.
It's a $35 evaporative humidifier bought from a department store during winter months. It holds 1 gallon of water and it has a low and high setting. I use the low setting.
Quote:
Note that these are commonly called a number of different things, most commonly a "cool mist." This can be misleading as sometimes ultrasonics are labelled as "cool mist." Check to make sure your humidifier uses a filter before purchasing.
The ultrasonic is a $60 ultrasonic, also from a department store during winter months. It holds 1.25 gallons of water (I believe).
I bought these with no particular specifics in mind, the only thing you should consider is how often you want to fill them (capacity) and if they fit in your GH (very important.) Just stay away from foggers meant for reptile terrariums and other small or low-capacity ultrasonics, you'll be filling them constantly.
It's very easy to overthink a greenhouse. Here's the adjustable variables as I see them:
Humidity (surface): Each substrate in the greenhouse gets cased to provide a nice microclimate of 99% RH at the surface of the substrate where it matters. The ultrasonic provides a "misting" by running 15 minutes on every 1-2 hours. This keeps the casing layer moist but never wet.
Humidity (environment): An evaporative humidifier is used to buffer the RH levels inside the GH. My humidifier in my environment keeps the RH level at a minimum of 85%. Every one hour the ultrasonic is on for 15 minutes and the RH jumps up for a bit.
FAE: As much as possible. I run my evaporative humidifer 24/7 for my edibles that don't mind a bit lower RH in the chamber. For cubes I have been finding my casing layers dry up too quickly. To compensate, the cool mist is on 30 min then off for 30. The ultrasonic runs 15 min on every hour, right after the cool mist shuts off You can adjust the amount of FAE by how zipped/unzipped the curtain is on the sides.
Here's how it is set up, it's very simple:
Two 4-tier wire shelves back to back. Ultrasonic on the top, evaporative humidifier on the bottom corner. Curtains unzipped 1/4 of the way on both sides.
Curtains pulled back by the evaporative humidifer for good FAE.

Timer for the ultrasonic is 15 minutes on every one-two hours.

I use only distilled water in the ultrasonic. This way I never need to worry about scaling and buildup ruining the fogger disc.
The scaling on the evaporative humidifer gets cleaned once a month with vinegar, a good soak and scrubbing will break all those mineral deposits off. The filter/wick gets washed off every two weeks and changed every month or two.
Other than filling the humidifiers, it is pretty much set-n-forget.
I have messed with a few different GH setups in the past, here's that shit I don't like:
1) Impellers. These fucking things never failed to soak my GH, no matter how many slits or timings I tried. Too much wet, too loud, too much maintenance.
2) Computer fans. I know they work for a lot of people but I want TONS of FAE in my GH. Even larger computer fans have never satisfied me.
3) Hygrotherm. It's a cheap humidity/temp controller intended for reptile terrariums. Precision humidity control may have its perks, but the humidity I care about is at the surface of the substrate. It was a waste of $90.
4) Slits. I don't like cutting up my GH 
5) Piping in the humidifiers from the outside. I've found it unnecessary and a pain in the ass.
Cubensis, WBS bag:

P. Galindoi:
King oyster:

There are a million ways to dial this in for different species, but I am sticking to the basics because more specific greenhouse methods are something you will need to figure out given your specific environment and conditions.

Edited by FrankHorrigan (10/11/13 12:57 PM)
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Maya Boomba
Stranger
Registered: 04/14/13
Posts: 198
Last seen: 9 years, 11 months
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan] 1
#18322972 - 05/26/13 12:40 PM (10 years, 8 months ago) |
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Please don't ever remove the info you put here frank it's worth too much. I'm thinking if I should print every single page of your journal and stash it somewhere in a safe....
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cronicr



Registered: 08/07/11
Posts: 61,436
Loc: Van Isle
Last seen: 2 years, 7 days
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Maya Boomba] 1
#18323164 - 05/26/13 01:16 PM (10 years, 8 months ago) |
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about time frank, ther's alot of gh's around again these days
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  It doesn't matter what i think of you...all that matters is clean spawn I'm tired do me a favor
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veda_sticks
Cultivator




Registered: 07/29/07
Posts: 14,191
Loc: UK
Last seen: 4 years, 24 days
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Maya Boomba]
#18323167 - 05/26/13 01:16 PM (10 years, 8 months ago) |
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Awesome writup. all makes sense :-)
One of these days ill get round to posting a tek of my own.
-------------------- PF TEK - writeup by EvilMushroom666 Lets Grow Mushrooms - RogerRabbit & RoadKills website with sample videos plus the full PF TEK video series. Alot of great information - BUY THE DVD Cakes can and will pin! - So you think cakes suck for pins. Your wrong Franks Simple Coir/Verm Tek Franks Proper Pasturisation Tek Franks Spawning To Bulk - Monotub Professor Pinheads RTV Injection Port Tek Foo Mans No Soak WBS Prep Tek
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Novanity1
Student

Registered: 08/29/10
Posts: 326
Last seen: 9 years, 1 month
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Maya Boomba] 1
#18323188 - 05/26/13 01:19 PM (10 years, 8 months ago) |
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Frank is your filter-type cool mist considered a wick type humidifier?
Similar to this one: http://www.vicks.com/products/humidifiers/v3100-cool-mist-humidifier/
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Novanity1]
#18323198 - 05/26/13 01:21 PM (10 years, 8 months ago) |
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Novanity, yes it is, I need to add that to the OP
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Novanity1
Student

Registered: 08/29/10
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Last seen: 9 years, 1 month
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18323295 - 05/26/13 01:39 PM (10 years, 8 months ago) |
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Well how about that. When I first setup my GH I bought that specific humidifier and then read all kinds of threads saying it was the "wrong type" so I returned it and got an impeller type. But in the back of my head I was thinking "why not just use it with a USH". 
Would it matter that it blows sideways instead of straight up?
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Novanity1]
#18323375 - 05/26/13 01:53 PM (10 years, 8 months ago) |
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Nope, it won't make a difference. It'll circulate the air in there just fine
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Saint Stephen


Registered: 03/05/13
Posts: 152
Loc: In and out of the garden
Last seen: 10 years, 7 months
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18324450 - 05/26/13 05:58 PM (10 years, 8 months ago) |
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How small can a green house be and still be work? My pmp is running out of room. i was hoping to use maybe 3 tiers of shelves?
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Timehole



Registered: 04/28/12
Posts: 156
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18324554 - 05/26/13 06:23 PM (10 years, 8 months ago) |
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Another awesome write-up frank! If I ever get around to making a GH, this thread shall be my guide.
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gimp
Stranger



Registered: 08/25/09
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: Saint Stephen]
#18324599 - 05/26/13 06:33 PM (10 years, 8 months ago) |
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--------------------

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billb
The Wolf I Feed



Registered: 10/09/11
Posts: 1,040
Loc: Dancing with the Dead in my Dr...
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: gimp]
#18325162 - 05/26/13 08:49 PM (10 years, 8 months ago) |
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I like it!!!!
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cronicr



Registered: 08/07/11
Posts: 61,436
Loc: Van Isle
Last seen: 2 years, 7 days
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: billb]
#18325184 - 05/26/13 08:53 PM (10 years, 8 months ago) |
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all thats missing are the mushrooms;) so i will be waiting(love your edibles btw)
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  It doesn't matter what i think of you...all that matters is clean spawn I'm tired do me a favor
Edited by cronicr (05/26/13 09:38 PM)
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: cronicr]
#18325344 - 05/26/13 09:38 PM (10 years, 8 months ago) |
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Quote:
Saint Stephen said: How small can a green house be and still be work? My pmp is running out of room. i was hoping to use maybe 3 tiers of shelves?
You can scale it down. You just need to adjust your ultrasonic timings accordingly so you don't flood your GH 
Quote:
cronicr said: all thats missing are the mushrooms;)
Quote:
FrankHorrigan said:


Link is in the OP 
I don't have any recent active grows in the GH. It's kept in a cold room for kings most of the year and I didn't figure many folks here would find that as interesting as they do over in GMM
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cronicr



Registered: 08/07/11
Posts: 61,436
Loc: Van Isle
Last seen: 2 years, 7 days
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18325350 - 05/26/13 09:39 PM (10 years, 8 months ago) |
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priceless timing as i was just complimenting those through an edit
--------------------
  It doesn't matter what i think of you...all that matters is clean spawn I'm tired do me a favor
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: cronicr]
#18325382 - 05/26/13 09:45 PM (10 years, 8 months ago) |
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My first time casing the kings, worked like a charm
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SpaceVox



Registered: 01/22/05
Posts: 622
Loc: Netherlands
Last seen: 10 months, 22 days
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18325966 - 05/27/13 12:22 AM (10 years, 8 months ago) |
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Ow frank, now you are making me buy things again :P
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veda_sticks
Cultivator




Registered: 07/29/07
Posts: 14,191
Loc: UK
Last seen: 4 years, 24 days
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: SpaceVox]
#18326568 - 05/27/13 04:30 AM (10 years, 8 months ago) |
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Wicking type humidifier?
In the past like the other poster mentioned posts say it should be an impellar type humidifier or it wont humidify a greenhouse, but im guessing your using it more for FAE?
And because your using a casing layer its more tolerent of lower RH plus having an ultrasonic come on its keeping effectivly misting the casing layer and the water that evaporates from the casing layer is also helping to contribute to humidity?
What if you didnt want to use a casing layer and just fruit trays or substrate blocks?
-------------------- PF TEK - writeup by EvilMushroom666 Lets Grow Mushrooms - RogerRabbit & RoadKills website with sample videos plus the full PF TEK video series. Alot of great information - BUY THE DVD Cakes can and will pin! - So you think cakes suck for pins. Your wrong Franks Simple Coir/Verm Tek Franks Proper Pasturisation Tek Franks Spawning To Bulk - Monotub Professor Pinheads RTV Injection Port Tek Foo Mans No Soak WBS Prep Tek
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FrankHorrigan
The Inquisition



Registered: 01/04/11
Posts: 10,573
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: veda_sticks]
#18327235 - 05/27/13 10:02 AM (10 years, 7 months ago) |
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Quote:
veda_sticks said: And because your using a casing layer its more tolerent of lower RH plus having an ultrasonic come on its keeping effectivly misting the casing layer and the water that evaporates from the casing layer is also helping to contribute to humidity?
Pretty much, yeah 
By itself the wick type humidifier will not provide humidity higher than 86% IME. It really does work great to disperse the moisture from the ultrasonic around though.
So the wick type humidifier is really just for constant FAE + maintaining a certain minimum RH for the environment. The ultrasonic takes care of the rest.
If you don't want to case your trays, then it's just a matter of adjusting your ultrasonic timings to make sure the substrate doesn't dry up too fast. If you really wanted to get fancy you can put the cool mist on a timer as well, but I love my 24/7 FAE 
I prefer casing them for the GH as well.
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veda_sticks
Cultivator




Registered: 07/29/07
Posts: 14,191
Loc: UK
Last seen: 4 years, 24 days
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Re: Frank's easy mini-GH, no condensation and 24/7 FAE [Re: FrankHorrigan]
#18327280 - 05/27/13 10:15 AM (10 years, 7 months ago) |
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Quote:
FrankHorrigan said:
Quote:
veda_sticks said: And because your using a casing layer its more tolerent of lower RH plus having an ultrasonic come on its keeping effectivly misting the casing layer and the water that evaporates from the casing layer is also helping to contribute to humidity?
Pretty much, yeah 
By itself the wick type humidifier will not provide humidity higher than 86% IME. It really does work great to disperse the moisture from the ultrasonic around though.
So the wick type humidifier is really just for constant FAE + maintaining a certain minimum RH for the environment. The ultrasonic takes care of the rest.
If you don't want to case your trays, then it's just a matter of adjusting your ultrasonic timings to make sure the substrate doesn't dry up too fast. If you really wanted to get fancy you can put the cool mist on a timer as well, but I love my 24/7 FAE 
I prefer casing them for the GH as well.
Awesome, always give out good clear info.
Ive never really tried casing layeres (except for 1 verm casing) but i know i will have to use one at some point as ive got a pan cyan print i need to try so will need one for that.
Once i get things sorted out and have a bit more money ill need to try setting up a greenhouse for doing some edible grows, probably oysters and lions mane and some button mushrooms (finally got a button mushroom kit that hasnt actually compleltly colinised the casing layer)
-------------------- PF TEK - writeup by EvilMushroom666 Lets Grow Mushrooms - RogerRabbit & RoadKills website with sample videos plus the full PF TEK video series. Alot of great information - BUY THE DVD Cakes can and will pin! - So you think cakes suck for pins. Your wrong Franks Simple Coir/Verm Tek Franks Proper Pasturisation Tek Franks Spawning To Bulk - Monotub Professor Pinheads RTV Injection Port Tek Foo Mans No Soak WBS Prep Tek
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