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Dehumidifier?

Chronic777

Member
What do you guys use?

Im looking to buy one for a small-ish space (bedroom in garden) it has to have a humidistat & be quiet

Are ones that use refrigerant dangerous or noisy?

So far looks like im gonna have to buy one for £150+ to get one that uses dessicant & has a humidistat

Thanks...
 

rocket high

Active member
Veteran
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i use this one but mine is black cost me £160.
It does use refrigerant..but its fine ...
but on the other hand it does make a bit of a din ... you hear it more at night tho.
Which para's me out lol :smoweed:
 
G

GR8shoeBaDizzle

worth every penny.....you dont wanna go 8-10 weeks to find a molded crop....its gut-wrenching and heart breaking to lose
 

Chronic777

Member
Im very glad i got it, it feels secure to have it

So what do you say i should keep humidity at?
Im at 55% in first week of flowering now, it hits 58-60% at night
Should i bring it down to 45% now, or just in last 3 weeks?
 

lost in a sea

Lifer
Veteran
it wont matter that much really, anywhere from 30 - 50 % is ideal for fast transpiration rates.....

in theory since ionisers release charged particles which collide with odor molecules, they arent what your plant wants to really to be around... i have a couple of dehumidifiers (one actually packed in the other day) i now always have the ion thing off....also if on when using to dry bud it thieves some of the taste from your nugs.......
 

Chronic777

Member
it wont matter that much really, anywhere from 30 - 50 % is ideal for fast transpiration rates.....

in theory since ionisers release charged particles which collide with odor molecules, they arent what your plant wants to really to be around... i have a couple of dehumidifiers (one actually packed in the other day) i now always have the ion thing off....also if on when using to dry bud it thieves some of the taste from your nugs.......

I keep forgetting its not only about mould control but transpiration aswell, is the ioniser really bad?

Ill def switch it off during harvesting but do you think it would rob much favour/smell during flowering growth?

Cheers
 

lost in a sea

Lifer
Veteran
faster transpiration not only speeds up growth, it also reduces stress levels which helps reduce hermie prevalence..

the ioniser isnt really really bad no... but in theory with the charged particles being released, they could react with terpenoids or active chemicals....... since most molecules have a charge, or various charged areas, ionized particles would react with them and break them down..

i found it definitely weakened the taste of drying nugs and quite possibly the strength as well, so in theory it could do the same during growth...
 

Chronic777

Member
Cool, ive been leaving my dehumid on 55-60%, its stayed at 55% all the time & i got really good air exchange aswell, i got good growth heightwise and a few pistils (3rd week flowering starts 2mro), but i want to see some more accelerated flower growth ;)

So you reckon i should drop it down to 45%?

Im gonna switch the ioniser off i think, the whole reason im growing blue cheese is for the flavour & taste
 

lost in a sea

Lifer
Veteran
right ive changed my opinion now!!!!

i had a good discussion with a friend on the matter, and a good few reefers, and he's changed my mind ..

i dont now think it will effect your plants at all whilst growing, the ions only basically simulate what fresh air actually does, which has the same charge as them and naturally reacts with odour molecules anyway..

if you can get it to 45% without raising the temps too much then go for it....ideal temperature is around 23-26 celcius in flowering, low enough not to stress them, but just right to keep most of the stomata open, and them drinking at full speed....

if it helps to keep the smell at bay, at some point, then use the ioniser, it will help cut it down.........i dont have a security issue or anything so have never been pushed to really have it on..

i still swear it ruined 2 plants when left on drying them.........but the thing had reset itself and gone on "Turbo" drying mode, as well as ion mode so maybe ot could have been more the quick dry effect.....

do you have a co2 controller ?? or supplement co2 anyway ?

they/it is a very (very) good investment for those only growing a few plants like us........and commercial heads, if they can be bothered lugging the intensely heavy bottles around!!
 

Chronic777

Member
The ioniser deifnately effects smell i know that much, im leaving it off, i reckon you were right lol

I cant get my humidity down to 45%, its just impossible where i am, my dehumids been on for 72 hours nonstop and its still only got as low as 47% with the lights on, usually around 50%, thats pushing the dehumid full blast 24/7, i reckon its fine at 55% im just gonna leave it on that 55% setting & hope for the best, i reckon as long as i keep good air flow & im not jumping into the 70/80%'s i shouldn't get budrot, ill do 45% for the last 2/3 weeks maybe

My temps usually 20-26c so not too far off, no co2 for me as i breathe the same air as my plant gets
 

lost in a sea

Lifer
Veteran
no way should you get bud rot at under 60% humidity, 55% is good...those dehumidifiers use alot of energy so your best not having it on full blast.....mine runs 2000w on full wack!

co2 really isnt dangerous at low levels or anything, carbon monoxide is the killer....

they do both(Co and Co2) have a higher affinity with haemoglobin than oxygen....carbon monoxide is something like 10 times worse per molecule....heavy smokers can have up to 20% of the oxygen binding sites blocked by Carbon monoxide, where as you or i could breath co2 levels around 1500 ppm constantly without raising the amount of co2 in our blood beyond a low limit, just because of how much easier it is for haemoglobin to remove Co2 than Co.

not long ago i used to chill in a room, all night every night, that had 20 cubic metres of grow space and i was releasing 30 cubic metres worth of Co2....and smoking dope in there all night (not smoking actually in the grow box's!!)

^^^^did that for years as well....

i have a friend with a box in his room, he releases triple what he should for the size of his box, he sleeps in there and has no problems.... controllers dont raise the ppm to dangerous levels.....and ideally if your plants are big enough, in a well sealed box, they will drink up most of the ppm before it even made it to you..

a plant wants a Co2 ppm of 1200 - 1600 for maximum growth, a Co2 controller will maintain the levels around this ppm.........a human begins to feel sick at around 15,000 ppm......so it would take something going seriously wrong to make you even feel a bit quesy....

its actually one of the best investments you could make.........30% bigger plants and roughly 30% faster growth as well....they are also healthier, more potent and less stressed..

co2 raises the ambient temperature because it absorbs infra red heat, but on the other hand higher Co2 levels helps the plant deal with heat stress...
 

Chronic777

Member
I might look into it for my next grow, but right now i planned on spending £300 max as its my first time & ive gone well over £700!
 

lost in a sea

Lifer
Veteran
I might look into it for my next grow, but right now i planned on spending £300 max as its my first time & ive gone well over £700!


i agree dont over spend.......theres all the time in the world to add more bits and bobs to your setup as you improve......

equipment is only half the battle........i think strain selection is actually more important, almost anyway...
 

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