heat

  1. psytranceweederotic

    heat resistant indoor cannabis strains

    hi growers i live in thailand at 40 degrees celsius / 104F No Air Con. which indoor cannabis strain can handle this heat 40 degrees celsius / 104F and still give a good harvest? like Satori from Mandala Seeds. please only specify indoor cannabis strain that are very heat resistant reg. fem. (no...
  2. Nic Barlor

    Single Northern Lights auto with lots of suffering throughout life, going into flower

    So I started a second tent to keep up with my personal demand, and decided to put an auto in there (my first auto). Specs: 40cm x 40cm x 120cm (so it's pretty tiny/skinny) - 10 x 15W 4000K commercial LEDs - organic soil mix, 2 feeds of root starter + 1 veg feed from BioBizz organics (as per...
  3. grimplestix

    I air cooled my 800w California Lightworks LED

    So I have come into possession of a California Lightworks solar system 1100 led and traded in the two 315 cmh I was running in the 4x4. also going back to plastic pots from fabric- whole different discussion. This system still runs hot!! Its 800w at the wall with all spectrums running full and...
  4. OGbobbyjohnsson

    light

    so baught a hps lamp but i have to return it becuse the heat whas a big problem im growing in a smal area so now im not realy sure what to get im thinkin about 1 or 2 300w cfl what would you guys by need somting that is cheep and works good... Bless
  5. J

    2x4 environment issues leading to hermies

    Hi Basic info is, this is my second grow. I am in NSW Central Coast and I have a 2x4 tent with, MarsPro II Cree128 LED. A dehumidifier inside the tent. A clip-on 18cm oscillating fan for circulation A portable AC connected to a HeaterMate thermostat-controlled power switch inside the tent...
  6. M

    CMH/COB LED combo 5x5 tent?

    Greetings riu! I'm adding a 5' x 5' tent to my area, looking for advice on how best to light it up. I need relatively low heat of LED, but also want to take advantage of the UV and other benefits of ceramic metal halide. Buildasoil has a combo deal with a 315w CMH + (4) x 100w COB fixtures...
  7. Rainbow Warrior

    Lighting cycle

    hi guys, In a middle of a heatwave here. I gotta head out of town for day & night. Coz of the heat, I have to leave my sheddoor open, so my tomatoes don’t get too hot. That means heat leak at night. Can I turn the lights of for 24 hours and then go back to my 18/6 cycle, or is it better to...
  8. BassheadGrowsWeed

    Best way to keep room cool with what I have

    Alright so I recently added another tent to the guest room and things are getting hot. I’ve got my clone/veg tent (2.5x2.5x5) with a mars hydro reflector 96 in it running 18/6 (6pm-12pm). Currently there is just a vent pipe out the top into the room and the two passive flaps are open. I’ve...
  9. carlo987

    Calculating cooling requirements for a greenhouse

    Hi everybody, can anybody help me with how to calculate cooling requirements for a greenhouse?
  10. FLV_Flavis

    Window Ventilation

    For starters this is my first post and my first PERSONAL INDOOR grow. In the past I’ve helped others out and I usually grow outdoor, so I’m just hazy on a few aspects of the indoor growing operation, like ventilation. I heard the build of heat will stun my plant/ not allow it to grow as well as...
  11. MarijAndrea

    SOS need help! Can not find cause/solution to sick plants.

    Please help! Can’t seem to overcome some problems with my plants and after multiple days of hours and hours of research I cannot seem to find what is wrong with them. To give you an idea of what I’m dealing with, first off this is my first grow that I am in charge of alone, don’t have much help...
  12. D

    Outdoor Autos

    Hey fellow growers, I usually don't bother with autos but this year I thought I should give it a try (trying to double dip a bit) and I was wondering if any of you finished with an auto during the high temps of the summer. I have 4 Northern Lights, temps outside reach around 35 celsius. However...
  13. Xul

    Suggestions for fan placement?

    Hey Everyone, I have a room built within a room as my flower room, it's approx 3.5 feet by 4.5 feet and 7.5 feet tall...as you can see from the attached pictures, i have a fan vented out near the top, next to the entry (figured hot air rises so higher up would be better for exhausting the warm...
  14. D

    Uh...it was just 90 degrees in there...

    So upon waking n checking the temps, the room was up to 90 degrees. Adding a window ac is preffered but out oc the question. simply dont have the space for it.what are some affordable and *efficient* solutions to drop temps ~ 10/13 degrees? Seems alot of people run mini dual hose acs, but those...
  15. D

    YOUR flower room temps..

    Title says it all. Post up your flower room temps! I find it hard to believe that plants cannot handle 90+ degree temps...i mean they grow pretty well outside in 90+ degree temps - what's the difference between outdoor and indoor?
  16. D

    Hps eye protection/ppe? Rep your gear here!

    I'm sure your eyes are important to you... So what are you using to protect them in your room? What other types of ppe do you use? Hats? Gloves? Glasses? Rep your gear here!
  17. RippedCittee

    Upsizing my grow but worried about temps

    Okay so I am currently growing in a 2*4 tent and will soon be upgrading to a 4x4 or 5x5 tent. The tent I currently have is inside the house so the temps are pretty easy to control ( when it's hot the AC kicks on lol) but the big tent must go into the garage (unheated and uninsulated) now I have...
  18. C

    Need winter grow help... How to keep my tent warm!

    Starting a winter garage grow and I need feedback on my heating setup. I'm growing a Northern Lights Autoflower on a 24/0 light schedule and over the next 10 weeks my temps in the garage will be around 50 f highs in the day and 25-30 f lows at night. My setup is a 2ft x 4ft x 5ft tent with a 4"...
  19. Realbax

    Heat stress? Hermes?

    Hi everyone. I could use another set of eyes on this one. I have a new light im testing. Its very similar to the spydrx plus units from fluence. Thats actually part of the reason I'm testing this one which is a iluminar il8. This is taking place in a 4x4x7 tent. The tent has a 4" extraction...
  20. Oregonhwy101

    Co2 and heat

    Temps have sky rocketed and room is suffering, plants look fine i run co2 about 2500 ppm usually temps are around 78-80 but cant get temps down due to exterrior heat witht he extra heat should i turn co2 up a bit or let it ride and watch for heat stress ? They are 3 weeks into flower.
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