Chat

By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see Privacy Policy

Accept

Recommended

Recommended

Grow QuestionsI can't control temperature. I'm so discouraged.

I can't control temperature. I'm so discouraged.

SevenStonedstarted grow question 4 years ago

How are you guys keeping temperatures down!? I have an hlg 600 Rspec at 50% power and the Temps won't go below 81 degrees with the light on. I'm in a 71 degree house. 4x5 tent with a 400+ cfm fan and negative pressure. I also have fans blowing on the plants and the light.

Solved

Setup. Ventilation

like

DeadwebsiteBoringcommunityanswered grow question 4 years ago

Honestly dude every time I look at my tent the humidity is 45% and the Temp is 80.. I have 8 seedlings and 4 big plants growing in this environment. All the plants are doing fine. I have to water a bit more and the plants will Transpire more.. but it's not the "end of the world". It's totally fine to grow cannabis outside of the "best" possible temperatures and humidity. Cannabis grows all over the world in all sorts of Climates.. Plants can Acclimatize to all sort of growing conditions.

1 like

Complain

Selected By The Grower

Cannabis_For_Lifeanswered grow question 4 years ago

sounds like you have 4 options. Lower your house temperature. Dim your light more. buy a bigger tent. Or If you already have negative pressure your fan is pushing plenty of air out the tent. Other options it to vent the tent, if it has built in vents awesome. If not you'll have to crack the door. Itll relieve the pressure and allow more cool fresh air in and your fan will start properly evacuating the hot air.

like

Complain

Similar Grow Questions

Solved

What equipment do I need to close my tent fully??I want to be able to close my tent completely without it getting too hot in there, I currently have it open to keep it cool, but what do I need to close it? Isit just some ducting and fans and also a air con unit?

Setup. Ventilation

Setup. Other

4 years ago

1

4

Solved

Newbiegrower420

Cooling whilst using humidifier outside a small grow tent I have a small 90x90x60cm grow tent with a VIPARSPECTRA 300W LED. Heat levels are crazy and running a small humidifier with ice blocks inside the tent along side extraction isn’t cutting it. Could I buy a bigger humidifier, keep it outside the tent duct it in to keep it cool?

Setup. Ventilation

4 years ago

4

10

Solved

fire harard What is your security/safety backup for fire hazard in case of exhaust system failure. (those Chinese fans you know they will break it is only a matter of time right?)

Setup. Ventilation

4 years ago

7

8

Solved

Newbiegrower420

Grow tent Temperature I have a 90cmx90cmx60cm grow tent with a VIPARSPECTRA 300W LED Grow Light inside.. How much will an extraction fan and carbon filter bring down the temp inside? In this heatwave my tent is running at 33 deg C, no plants seeded yet. Will the fan be enough or should I get a cooler?

Setup. Ventilation

4 years ago

2

2

Solved

High humidity.Does anyone have some sage advice on how to keep humidity down? Today we had 36c outside temps and humidity in my tent hit 85%.. Firstly is this an issue? I normally have a reading of 50-60% but I can't lower it today. Second, how can I lower it.

Setup. Ventilation

4 years ago

2

2

Solved

Looking for some input.Looking for some input on inline fans n carbon filter for a 2x2x4 grow tent. Which ones to get/ stay away from? 6in or 4in? Much appreciated.

Setup. Ventilation

4 years ago

3

3

Solved

What air temp and RH should i be trying to acheive for flowering?What should i be trying to acheive with RH and air temp for flower stage. I recently was subject to some intense heat and RH shot up to 92%. I have ordered a De humidifier to combat that and i have a fairly decent control over the air temps but i am not sure what i am trying for.

Setup. Ventilation

4 years ago

4

4

Solved

Do you think this is a better position for carbon filter so it can have better airflow or is it more important to scrub air from the top and have 2 90 degree bends? I'll probably try this in my next grow. Pic with drying plants is setup from before with 2 90 degree bends.

Setup. Ventilation

4 years ago

4

6

Solved

How important is humidity?How important is it to keep humidity high in the early stages of growing? We are going in a tent and struggling to keep it above 45%

Setup. Ventilation

4 years ago

3

4

Solved

Retailer saying I need a bigger fan 1st post here going to be starting a diary soon, went to buy a complete set up today 240x120x200 tent 2x600w light kits 6" fan rhyno hobby 6" filter & all the rest, but retailer now saying fan & filter in that package won't be sufficient & I need to upgrade to a 8"fan n filter?

Setup. Ventilation

4 years ago

1

5

Solved

Newbiegrower420

Slowing a two speed inline fan Can I run a fan speed controller with a dual speed inline fan? My 4” two speed fan is slightly too powerful for my grow room. I’d like to slow the fan slightly but I have heard the these types of controllers don’t work with two speed fans? Any advice or what to buy to do the job?

Setup. Ventilation

4 years ago

3

3

Solved

Speed of outgoing TD Silent Do you adjust the ventilator speed over time? I have a TD Silent with 5 possible speeds and keep the lowest speed at night (so I can sleep) and on 3 or 4 during day to be sure. Is there a trick to find the best yet lowest speed?

Setup. Ventilation

4 years ago

1

2

Solved

Can I use a 100mm carbon filter on a 125mm exhaust?So, the title is pretty straightfoward. I was thinkin about getting some 127mm extraction tubes and make it really tight to fit the filter. TIA

Setup. Ventilation

4 years ago

1

2

Solved

Newbiegrower420

Humidistat levels vary wildly between Inkbird and ETI humidistats..I have two humidistats, one is an Inkbird 200 for control, the other is ETI 810-195 just for display.. The ETI is showing roughly 9-10% higher humidity levels compared to the Inkbird. Does anyone know which is more accurate? I want it get these humidity levels just right 👌🏼

Setup. Ventilation

4 years ago

2

3

Solved

Co2 bottle question (Tnb)Should I be running my exhaust fan and intake fan during the day while I have a Co2 bottle in the tent, or will Scrubbing air make adding it useless?

Setup. Ventilation

4 years ago

1

1

Solved

Newbiegrower420

Using humidistat to control fan, will this cause problems? So far fan running for 30 secs every two minutes! Plz advise if this is not a good idea??My exhaust fan is to powerful no speed control just two settings. On the lowest setting the fan is still sucking all the humidity that my humidifier creates out of the tent. So I have bought a humidity controller hooked it up with the humidifier and fan.. It’s working great!!

Setup. Ventilation

4 years ago

4

4

Solved

Сколько ватт на 1 кв.м LED Скажите сколько ватт света LED нужно на 1кв. метр. Сколько минимум, сколько норма, и сколько будет света прям за глаза прям. Светильники на 500w 100х100см LED. ТЕНТ 300х300, и сколько нужно вентиляции выдува в метрах кубических. планирую TD Silent

Setup. Lighting

Setup. Ventilation

4 years ago

1

Solved

Shockolateman08

Plug in dehumidifier...Micro grow space. What's a good plug in dehumidifier and do they actually work?? Or should I just invest in a larger one for the room RH instead of box RH? Ufo lights on the way 150w

Setup. Ventilation

4 years ago

4

Solved

Carbon filter life time How long should a carbon filter last? Been using mine for 3 grows now and its starts to smell everywhere... any recommendations for a decent carbon filter?

Setup. Ventilation

4 years ago

6

5

Solved

Can RH be raised to 100% for short periods of time?My extraction is noisy and the humidity is causing a sore throat at night. Can I switch it off and raise my RH to 95% on a regular basis without stressing the plants? I have an indoor grow 2"x2" that runs full ventilation. RH rises from 70% to 95% after 30 mins of no venting.

Setup. Ventilation

4 years ago

2