Whats my dehumidifier Wattage?

ttystikk

Well-Known Member
I don't know much about humidity, but I do know you have to buy a special dehumidifier for working efficiently below 65 degrees.
Unless the space you're trying to dehumidify needs to stay cold, your best bet is just to stick a heater in there.

If it has to stay cold AND reduce humidity, you're running the risk of freezing your AC coils. Not what's inside the coils, but encasing them in ice.
 

lusidghost

Well-Known Member
Unless the space you're trying to dehumidify needs to stay cold, your best bet is just to stick a heater in there.

If it has to stay cold AND reduce humidity, you're running the risk of freezing your AC coils. Not what's inside the coils, but encasing them in ice.
That's what I ended up doing. My basement is a cold moisture trap and my son's room was getting mold. Now it's all dry and toasty and my floors are warm!
 

Bukvičák

Well-Known Member
Wrong. Any meteorologist will tell you that to dehumidify, you must add heat. This is as basic as gravity.
I do not care about meteorologist, I do care about budrot. Heating up your grow space in order to lower your RH is only math, there is still same amount of water in your air and even more because of higher evaporation caused by higher temperature. Risk is even higher! So your theory which is true (I am not saying it is not) is not apllicable in our environment with living biomass and pots full of water.
 

ttystikk

Well-Known Member
I do not care about meteorologist, I do care about budrot. Heating up your grow space in order to lower your RH is only math, there is still same amount of water in your air and even more because of higher evaporation caused by higher temperature. Risk is even higher! So your theory which is true (I am not saying it is not) is not apllicable in our environment with living biomass and pots full of water.
LOL

I'll bet I've been growing for longer than you've been alive.

But you go right on telling us how you have all the answers.
 

Bukvičák

Well-Known Member
LOL

I'll bet I've been growing for longer than you've been alive.

But you go right on telling us how you have all the answers.
01C7693E-23FB-4274-99AB-2622E6AC97FB.png
I like this chart, just do not confuse it with VPD. It is the same princip like VPD, but this can clearly show you what should happen with your RH when you rise your temp. So let say you have environment 22C and 65% with total 10,82g of water in 1kg of air. You rise your temp to 26C in order to lower your RH. Numbers you “should” observe is an “instant” drop to 50% at the time your temp reaches 26C. This will never happen in grow room with plants! Even if you will be lucky to see 55% it is still 11,73g water in the air so more than before. So Yes, your theory is correct but again, not in environment with living plants. I would like to ask than, what you have been doing for that 33 years (or more)?
 

BFERG

Well-Known Member
Actually I think the RH was adjustable, lowest setting was 35%. But my fuse might not be able to handle 1kw peaks.. Would have to run the electricity via another fuse and long cord
what size fuse/ breaker are you dealing with your unit is only drawing about 8.3 amps. depending on what all is on that circuit you should be fine
 

dizzyground

Well-Known Member
230V? Which country is that? Higher voltage is better, it results in less energy loss from long extension cords. Thin, small gauge cords are also bad.
Finland :p

what size fuse/ breaker are you dealing with your unit is only drawing about 8.3 amps. depending on what all is on that circuit you should be fine
Its 10amp fuse and already has stuff on it. I think you are counting in different voltage. My house has some 16A fuses too but changing them is something I don't want to do.
 

ttystikk

Well-Known Member
View attachment 5071181
I like this chart, just do not confuse it with VPD. It is the same princip like VPD, but this can clearly show you what should happen with your RH when you rise your temp. So let say you have environment 22C and 65% with total 10,82g of water in 1kg of air. You rise your temp to 26C in order to lower your RH. Numbers you “should” observe is an “instant” drop to 50% at the time your temp reaches 26C. This will never happen in grow room with plants! Even if you will be lucky to see 55% it is still 11,73g water in the air so more than before. So Yes, your theory is correct but again, not in environment with living plants. I would like to ask than, what you have been doing for that 33 years (or more)?
It would take years to tell you and it's already clear you don't want to listen.

Have a nice day.
 

Bukvičák

Well-Known Member
It would take years to tell you and it's already clear you don't want to listen.

Have a nice day.
I am one ear to listen and learn something new about growing weed especially about humidity control. But I have kinda feeling that only thing you will be repeating all the way round again and again is based on theory. And I know you do not like the fact, the theory is different than practice. So can we move further somehow? Or you are just another “more than three decades” grower who is not able to explain his claims other than with basic common theory about relationship between temperature and REALTIVE humidity?

edit: relative
 

dizzyground

Well-Known Member
Never mind, this thread is more about electricity so I appologise OP for spamming and leave. Thank you
Don't worry, its internet :lol: my question got answered already.
So you are saying that plants perspirate so much more if you raise temps that RH stay same? I would also know how much temperature affects plant perspiration.

One big budrot mistake is having HPS bulb too close to plants. Maybe the heat it puts out makes big colas sweat too much and then they get rot, with all kinds of RH levels. Leds might fix this, never tried.
 
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BFERG

Well-Known Member
Finland :p


Its 10amp fuse and already has stuff on it. I think you are counting in different voltage. My house has some 16A fuses too but changing them is something I don't want to do.
Yep sorry was thinking 120V guess I should have asked where you are :lol: :bigjoint:
 
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Bukvičák

Well-Known Member
Don't worry, its internet :lol: my question got answered already.
So you are saying that plants perspirate so much more if you raise temps that RH stay same? I would also know how much temperature affects plant perspiration.

One big budrot mistake is having HPS bulb too close to plants. Maybe the heat it puts out makes big colas sweat too much and then they get rot, no with all kinds of RH levels. Leds might fix this, never tried.
We are talking about growing weed indoor not about living room, meteorology or whatever else connected to the wheather and its changes. Dude is correct with theory I do not deny. But once you have plants and pots with medium inside the room, situation changes rapidly. Higher temp means higher transpiration thats obvious we do not need to talk about that, hopefully everybody agrees…? Higher temperature also means quicker evaporation of water from your medium, hopefully everybody agrees again. And all of that water goes the the air. In one moment you are happy you have properly working combo temp/Rh meter which only recalculate values of Rh accordingly to risen temp but at the same time you have more water expeling in the air. So RH may drop but it wont drop as much as it “should” be according the the chart. And the last thing you want once you are entering late flowering stage is lot of water in the air. Hot and humid environment is much more dangerous than cold and humid. Both sucks but one more than the other. In short, you need dehumidifer to remove moisture from the air. It also rise your temp because its the way how it works, they are more efficient with higher temps. Rising your temps only in purpose of lowering humidity is not the way when flowering weed, because you are actually doing nothing in sense of removing water. If your eyes do not see water, it is still in the air. Its kinda dumb explanation, but it does not mean it is not true. Hope it does make sense.
 

twentyeight.threefive

Well-Known Member
Don't worry, its internet :lol: my question got answered already.
So you are saying that plants perspirate so much more if you raise temps that RH stay same? I would also know how much temperature affects plant perspiration.

One big budrot mistake is having HPS bulb too close to plants. Maybe the heat it puts out makes big colas sweat too much and then they get rot, with all kinds of RH levels. Leds might fix this, never tried.
Plants don't perspire.
 
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