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Jammo85

Extractor off for 12hrs will plants run out of Co2

18 posts in this topic

My grow room is a room contained inside my concrete shed 

The room is 2m x 2m and 6ft tall 
there is 9 plants in there around 17inch tall. 
started 12/12 yesterday

 

the air flow in is 4inch passive 

 

the extractor is 6inch 

 

could I turn the extractor off for 12 hours to heat with heating costs or would that be detrimental to the plants health? 
 

 

is there should device/plug where it would automatically put my extractor on Full power for 12hours of lights on and then switch it to low power for 12 off so I’m not sucking up al the heat but exchanging the air often enough? 
 

or would they be ok with the extractor for that amount of time? 

 

 

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it sounds like u would be better off with a controller to turn the fans down when the lights are off

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1 minute ago, joint-tastic said:

it sounds like u would be better off with a controller to turn the fans down when the lights are off

Could that be done automatically as im in work when lights off

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Just now, Jammo85 said:

Could that be done automatically as im in work when lights off

 

yeah u can get an smscom twin fan controller

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4 minutes ago, Jammo85 said:

Could that be done automatically as im in work when lights off

 

 

 i use a sms com hybrid and they are the bollocks, keeps things toastie especially with a heat mat in place

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Thank you 

 

until I get that are the plants suffering when that’s set to be off for 12 hours?

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1 minute ago, Jammo85 said:

Thank you 

 

until I get that are the plants suffering when that’s set to be off for 12 hours?

 

u would be better off turning up the heating until you can get to the shop to get an smscom twin controller, or wait for a delivery, because it is not good to turn the fans off when the lights are off

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1 minute ago, ratdog said:

 

 

 i use a sms com hybrid and they are the bollocks, keeps things toastie especially with a heat mat in place

Just a quick google and I’ve come up with a few.... 

how quick should I get this as of right now that extractor is off for another 8 hours....will they run out of co2 in this time

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Just now, Jammo85 said:

will they run out of co2 in this time

 

 

they wont run out mate, temps especially root temps are the issue here imo

 

 

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Just now, Jammo85 said:

Just a quick google and I’ve come up with a few.... 

how quick should I get this as of right now that extractor is off for another 8 hours....will they run out of co2 in this time

 

you should turn the fans back on and crank up the heating,lol

 

they won't run out of co2, but it could cause mold to start growing and is not healthy for the plants

 

the controller that u need is called smscom twin fan controller mk2 and costs about 90 quid

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2 minutes ago, Jammo85 said:

....will they run out of co2 in this time

 

They will never run out of CO2  , they make their own too .  Unless you have a hermetically sealed room and airlock with CO2 scrubber (you dont ...unless you have the disposable income of an international drug baron )  they will always have sufficient to photosynthesise.  

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if you have the cash i would buy the 4 amp hybrid, it has an extra feature for humidity in late flower and costs £250 or there about's, no hum whatsoever and stealthy as fuck. i have two and i wish i had them years ago

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Brilliant thanks lads.....

 

a got a bit of cash coming from Xmas bonus....I was going to replace the shed roof and insulate it better 

this morning you could see lines On the flat shed roof where there was less insulation and it was melting in an unnatural way....

 

(not so much of a bonus but here’s half a weeks wage thanks for all the free overtime you do) 

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Plants only need co2 for photosynthesis during lights on. At night they need oxygen (which there will be plenty of) and will give off co2. 

 

You still need enough airflow to control humidity though. I usually have my fan pulling more air through at night to prevent mold.

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Yeah I just noticed the walls are soaking in there now as moisture is through roof. 
 

I’ll get onto the plug ASAP 

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