Advertisements
  • LED Grow Light for cannabis, HLG lighting, Percys Grow Room Ad
  • Ali Bongo, Head Shop UK, buy best bong UK, Percys Grow Room
Notifications
Clear all

High humidity

SG2
 SG2
(@goldseal94)
Ocimene
100 Post Likes
250 Post Likes
Active Grow Diary Bling
500 Post Likes
YouTube Member Bling
1 Complete Grow Diary Award
Forum Regular
Points: 3227

Cuz there’s so much moisture In the air when I’m cooling the room from outside it sucks in to cool the room and then the Dehumidifier Carnt keep up. High humidity’s!!!!!!!!

im running a InkbirdSmart. Thermostat With a heater and using the intake/exhaust for cooling, a inkbird humidy with a Argo humidifier and pro breeze 1500ml dehumidifier, just upgraded from the 500ml.  

humidity % continues to rise until the room exhausts. Ok for now but wen I a get to flower I’m going to be fooked. 

Forgiveness is a gift we give our selfs.

ReplyQuote
Topic starter Posted : December 4, 2020 5:07 pm
galandil, Zombie Nation, monkeydo and 2 people liked
Topic Tags
Bogleg
(@bogleg)
Geraniol
100 Post Likes
250 Post Likes
Percy Grower
Points: 755

Is there a description of your grow room/environment somewhere that you can link to?  From what I gather you are growing in a room and pulling air into said room from outside (outdoors)?

Is that correct?  Here are my questions:

What kind of climate do you live in? 

What kind of room is the grow room (closet, unfinished, garage, etc.)? 

How big is the grow room?

How are you intaking and also exhausting your air (size of fans/ducts, cfm speeds)?

What kind of lights are you running?

What are the relative humidity and temperatures in your grow room with the lights on and off?

Water is life.

ReplyQuote
Posted : December 4, 2020 6:01 pm
galandil, Zombie Nation, twisted1 and 1 people liked
SG2
 SG2
(@goldseal94)
Ocimene
100 Post Likes
250 Post Likes
Active Grow Diary Bling
500 Post Likes
YouTube Member Bling
1 Complete Grow Diary Award
Forum Regular
Points: 3227

@bogleg thank you for the reply I’m attempting to grow in my shed, in uk winter weather, 4 inch ducting for intake and exhaust from outside. Migrow led 4 way. 240watts. 1500x600x900. Air tight Enclosure. With 2 x 4 inch fans via controllers attached to rhino carbon filters in and out. Inkbird probes, 4 inch ram air circulation fan, oil heater. 
relative temps and humidity good question, ill have to Turn everything off except the light and let you no. The outside air is 2 degrees at 90% RH. 🤦‍♂️

Forgiveness is a gift we give our selfs.

ReplyQuote
Topic starter Posted : December 4, 2020 7:57 pm
Hart, Zombie Nation, monkeydo and 1 people liked
Bogleg
(@bogleg)
Geraniol
100 Post Likes
250 Post Likes
Percy Grower
Points: 755

@goldseal94 Are the intake and exhaust fans constantly running or are they cycling on and off with a timer?

Water is life.

ReplyQuote
Posted : December 4, 2020 8:30 pm
Hart, Zombie Nation, monkeydo and 1 people liked
SG2
 SG2
(@goldseal94)
Ocimene
100 Post Likes
250 Post Likes
Active Grow Diary Bling
500 Post Likes
YouTube Member Bling
1 Complete Grow Diary Award
Forum Regular
Points: 3227

@bogleg they both kick in wen the temp gets above 25.

Forgiveness is a gift we give our selfs.

ReplyQuote
Topic starter Posted : December 4, 2020 8:54 pm
Bogleg
(@bogleg)
Geraniol
100 Post Likes
250 Post Likes
Percy Grower
Points: 755

And are they constant speed or variable speed?  How hot does it get in winter in the shed with the lights on and no fans running?

What I'm driving at is whether or not it would be possible to only intake as much air as needed, so you aren't heating and removing moisture from more air than is necessary.  So if the fans ran with a cycle (say 1 minute on, and 9 minutes off), would the temps get above 25C, and would the RH average lower?

Water is life.

ReplyQuote
Posted : December 4, 2020 8:57 pm
Hart, Zombie Nation, monkeydo and 1 people liked
Woolie
(@woolieback)
Limonene
1K Post Likes
2.5K Post Likes
5k Post Likes
Active Grow Diary Bling
250 Post Likes
500 Post Likes
10k Post Likes
Chat Moderator Bling
Reddit Rep
5 Complete Grow Diaries
100 Post Likes
OG
Points: 55321

Hi buddy try pulling the filter off your intake and replace with a pair of stockings and possibly shut the intake fan off , as above the vents can help your high rh while light run 

Sucking ⛽

ReplyQuote
Posted : December 4, 2020 9:26 pm
Hart, Zombie Nation, monkeydo and 1 people liked
SG2
 SG2
(@goldseal94)
Ocimene
100 Post Likes
250 Post Likes
Active Grow Diary Bling
500 Post Likes
YouTube Member Bling
1 Complete Grow Diary Award
Forum Regular
Points: 3227

@bogleg so have the oil heater thats linked to the inkbird device to activate when the temp goes below 20 and swith off at 25 and have the fans on a seperate timer to com on every 9 minutes for  minute. 

 

Forgiveness is a gift we give our selfs.

ReplyQuote
Topic starter Posted : December 4, 2020 9:31 pm
Hart, Woolie, Zombie Nation and 2 people liked
SG2
 SG2
(@goldseal94)
Ocimene
100 Post Likes
250 Post Likes
Active Grow Diary Bling
500 Post Likes
YouTube Member Bling
1 Complete Grow Diary Award
Forum Regular
Points: 3227

@straight_coco to have the outake always on i have to have equal amount of intake for the pressures  and i cannot heat it quick enough cuz the space is so small and air tight and the air is so cold 

 

Forgiveness is a gift we give our selfs.

ReplyQuote
Topic starter Posted : December 4, 2020 9:35 pm
Hart, Woolie, Zombie Nation and 2 people liked
SG2
 SG2
(@goldseal94)
Ocimene
100 Post Likes
250 Post Likes
Active Grow Diary Bling
500 Post Likes
YouTube Member Bling
1 Complete Grow Diary Award
Forum Regular
Points: 3227

ive got smscom fan controlers as low as i can get em on 4 inch ducking and it  blowing a gail though my space, rvk fan  

Forgiveness is a gift we give our selfs.

ReplyQuote
Topic starter Posted : December 4, 2020 9:39 pm
Hart, Woolie, Zombie Nation and 2 people liked
jacks_farm
(@jacks_farm)
Linalool
100 Post Likes
250 Post Likes
500 Post Likes
1K Post Likes
2.5K Post Likes
Known Member
Points: 9085

@GoldSeal94

You don't want equal amount of pressures or there no point having a filter.

I would try having the extraction fan on and the intake fan off, (I don't have a intake fan and I grow in a shed in the UK (south east))

and the heater on constant, IMO its better to have the room hitting 33c and 25c lights off with the humidity hitting 60 than 25c and 15c lights off

with the humidity hitting say 80 

check this chart out for an example 

Dew Point

As the tempter goes up the humidity goes down, also causing a strong vacuum will reduce the humidity loads 

don't let the plant canopy get too think as this will also increase humidity, water just before the light go on, 

after watering the humidity will spike but with the light on the temps will be higher so the humidity will still be lower than light off 

 

 

ReplyQuote
Posted : December 5, 2020 12:03 am
galandil, Hart, Woolie and 4 people liked
Zombie Nation
(@zn)
Valencene
1 Plant of the Month Win
10k Post Likes
5k Post Likes
Active Grow Diary Bling
1 Complete Grow Diary Award
The High Council Award
Sex Pot Grow Off
250 Post Likes
500 Post Likes
1K Post Likes
2.5K Post Likes
OG
Points: 100983
Posted by: @goldseal94

@straight_coco to have the outake always on i have to have equal amount of intake for the pressures  and i cannot heat it quick enough cuz the space is so small and air tight and the air is so cold 

 

Get some kingspan/celotex etc. or even loose lay rolls of insulation (itchy shit though) and insulate your tent especially the floor and then run passive intake as mentioned above...will save on your heating bills, keep air in the tent warmer and reduce RH as much as possible, or insulate the shed, run passive and put heater outside tent to warm intake air

 

ReplyQuote
Posted : December 5, 2020 7:09 am
monkeydo, Hart, twisted1 and 2 people liked
jacks_farm
(@jacks_farm)
Linalool
100 Post Likes
250 Post Likes
500 Post Likes
1K Post Likes
2.5K Post Likes
Known Member
Points: 9085

For a short time i did a very basic setup in a shed and the plants cooked in the summer hitting 38c and droppinging down to 10c in the winter.

So I built a large high shed and lined the roof/floor and walls with 30mm rockwall and have passive intake airflow that roll over some tube heaters, works really well and does not take up any room, 

You could have a 12"x 8" hole (in the floor one end of the shed, cover with mesh stop flys)with a 4ft long box (6"heigh × 8") wide with open at each end, slide 2 × 4ft tube heaters in there. 

 

 

 

ReplyQuote
Posted : December 5, 2020 7:51 am
galandil, monkeydo, Hart and 2 people liked

Our forum is free to join. We are an international cannabis forum that helps people all over the world grow their own personal supply of cannabis. Through our site you will find cannabis breeding forumscannabis deficiency forumsindoor cannabis growing forums, and much more. 

We are a home growers cannabis forum, and we only allow people who grow cannabis for personal use to be members. Our mission is to help you grow your own cannabis. We do not buy/sell/trade cannabis, or equipment for growing cannabis. Our site is strictly a cannabis smokers forumcannabis growers forum and forum for medical cannabis users.

Use our guides on how to grow cannabiscannabis grow diaries, and growers forum to find all the info you need to learn how to grow your own cannabis.

Any member who is suspected of growing cannabis for commercial gains will be banned immediately.

Please read our forum rules, and enjoy the site.

Find us on all social networks! Just search for Percys Grow Room