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Search the Community: Showing results for tags 'temperature'.



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Found 19 results

  1. Hullo, First timer here, 1.2x1.2x2m Mars tent with 600w Solis-Tek digi ballast, 6" exhaust, pulling through a f^k off carbon filter. Hand watered coco with Canna nutes. At the moment I'm just getting my bearings and while my Type K thermocouple thingamy has been invaluable during the hot weather (barely managing to keep below 30c during hottest part of day, but the girls are seeming to love it =) ). However I'm thinking I might need to get a handle on the moisture levels in the air as they really start to party hard. So would appreciate a product that will allow me to put sensors where they will do most good, and more importantly allow me to take readings without having to wake them up (ie have the display outside). Not above building some sort of home brew "fabracobbled", GitHub sourced thing, but prob more sensible to start with a working unit that will give me a baseline to be able to move forward from. Don't want IoT stuff, no RGB, simply something that works, every time, without alarms or "features" that won't get used, think Nokia rather than iPhone =) Finally I would like something that will manage to survive at least a couple of seasons, but not having me have to sell the kids. So if you have come across such a thing, please point me in the right direction. Cheers, PS Also I wondered if there was any benefits to other things to bring the moisture down rather than a full on de-humidifier ? (N.B. NOT affiliate links) Bags of magic stuff that pull in moisture (along the same lines, Or if it gets really bad, bite the bullet and get.. Big thanks in advance B
  2. Oioi I need some advice on keep temp low in tent and humidity high with out spending loads. I've got five dark devil auto on the go but temps are exceeding over 30 degrees and humidity drops when I turn extracter fan on. Any help would be appreciated
  3. I've just opened my tent to find condensation all over the lower part of it while my humidity meter reads 39%. My temperature is 25.5c while my fan seems to be running at low speed, which is set at 30%. Is my problem that my low speed set point is too low for the transpiration level of the plants while the correct temperature is being maintain so easily by the fan? Does that make sense to anyone else? Ta Fax
  4. Hi everyone just after some opinions and an answer to some questions. First of all what is the ideal temps and humidity when flowering starts? I read somewhere but cant remember where, do the plants take up some of the temp and bring it down? Im struggling to get my tent down below 25 degrees currently started week 2 of veg. Should I transplant into a bigger pot once I go into flowering? I have fabric pots what do you guys think of them? Thanks in advance.
  5. Just wondering how everyone is getting on in this mad heat. I generally only do 1 or 2 grows a year and they always (by pure luck) seem to fall mainly over the cooler months. Just wondering what everyone's set ups are, and what their temps are running at now? Feeling quite lucky that my 1000w in a 4 x 4 finished a month ago! Especially the loft growers! How the hell are your plants still alive
  6. Hi, using 400w hps in a 1.2 x 1.2 x 2m tent. It was 36C in there lihts on and 28C off. I changed my intake fan to be a 2nd extractor, improvised a passive intake, bought an air cooling unit and put it in but I still can't get it below 33C lights on and my plants apear to have stopped growing Any advice will be welcome. I'm running a 4inch Can Fan extraction unit to an open window and I've moved my hot ballast out of the room. Am running out of ideas
  7. Hello guys, I have a question about air-conditioning and before I start I completely understand how AC works. You have an unstable gas which draws heat from a space when it evaporates in a cooling coil then kicks out the heat when it condenses outside - typically on a roof top. My question is that with the smaller units which are fully self contained, non- commercial and have a foul air heat duct, will the air that they expel be stinking of weed and could I possibly add an inline carbon filter and supplementary fan to scrub the air?
  8. Just came across this on Kickstarter, looks like it could be a very useful grow room tool. https://www.kickstarter.com/projects/1309712609/thermoco-coin-size-smart-thermometer-and-recorder?ref=category
  9. Hi all, is 17 degrees far too low for lights off in coco grow, hand watering? Also, how do you check the lights off temp without disturbing the dark cycle?
  10. I have a DP90 propagation tent with a 4 tube T5 Lightwave unit. im concerned that the temperature for the just sprouted seeds is too high, the t5's are about 6" above the seedlings and im seeing temperatures of 30-33 deg c. is this temp ok? or should i raise the T5's up another 6" or so.?
  11. now then every1 wondering if i can pick some brains. been doing a lot of reading over the past couple of month and came across an article about temperature. this article basically says in the first 2 weeks of flowering to keep the temp the same through day and night. by doing this it concentrates growth energy into the buds rather than the internodal (which i assume is the stalk). this is the article any info would be helpful cheers
  12. Hello uk420. I am seriously considering purchasing the sun system xxxl 6'' inch dominator reflector. Any one currently using one? Does any one have experience with this make reflector or ones similiar? Also will the lead supplied fit into the 3 pronged connector looks like a kettle type on the sunmaster fx digital ballast ok?
  13. Hi, just wondering what the temperature should be (max) whilst flowering? Currently I'm running between 20c lights off/ 29-33c lights on! Does the flowering process cease above a certain temp? I know for bottom end its about 14c Any help be mucho appreciated
  14. AtticStairs

    From the album Loft_Grow

  15. AtticRight

    From the album Loft_Grow

  16. AtticLeft

    From the album Loft_Grow

  17. I'll start off by saying hello, I appreciate your time in advance and I can fully understand that you've no doubt heard this time after time after time but I assure you I've tried a lot and I still cannot seem to bring down the temperature (Beginner). My suspicions are that the tent is too small, the HPS light is too much for the size and maybe the extractor vent isn't doing the best it could. I'll let you decide. The tent is W90cm D50cm H155cm. It is layered with a reflective film and has two fans inside. The fan is 9" which is directed purely at the 600W HPS Duel Spectrum Bulb which gives off a ridiculous amount of heat I look like a science professor off Breaking Bad sweating my tits off. The second fan is a 4" fan which is directed at the plant itself (which looks to make no difference there or not by the thermometer). At the top there is a 3.5" extractor vent pulling the heat out of the tent via the bottom. Vent is situated at the top. Pictures shown. There is an intake fan that pulls air from the outside inwards via the bottom left of the tent. The Plant itself sits in Miracle Gro (yes I know, but I know of good results) which gives the nutrients. The plant is watered once a day with 1.5 litres of 5.9ph water. Humidity is not monitored at present. The room that it is in is 233cm by 250cm (2.3m by 2.5m). The temperature in the tent stays between 29 and 31 C (84 - 88 F) and it just will not go lower! The window is left open constantly. History: A little bit about what's happened. 6 seeds, germinated perfectly 100%, made rookie mistakes and overwatered; caused them to become droopy. Made another rookie mistake and stretched them too much; they was on the windowsil for 4 days, and the airing cupboard for 3 days before the small 30W light I was using must've been too much added with the heat that killed them all a part from 2 that I managed to save through Intense and long hours of reviving. This was originally meant to be a hydroponic go but as you can tell, I am better off starting at easy which is soil. I transferred them from rockwool to soil and they've grown a lot better. Within days they grew well. I then didn't water them for a week while they were situated on the windowsil. I then transferred them to the tent to which I followed the advice of hundreds online and put the HPS light 15" above the plant which was a ridiculous idea to me and proved to be wrong as the one plant burnt within 20 minutes!!! I put the light up to 25" above the plant and it seems to be fine the passed 24 hours. The 1 plant I watered and left on the windowsil to heal and I hope this will be okay to go back to the tent on recovery. My questions are as followed: Would you disagree with any of the above? Will my plant that been burnt survive? How do I bring down the temperature, it's roasting? Would you advise anything? Pictures are shown. Thanks a lot everyone I really do appreciate the help.
  18. Hello, This is my first proper grow, a 1 plant scrog. All was going well during veg with Temps around 24/25deg and Rh at around 60% Since starting flowering 1 week ago i have been having issues when the light is OFF, Temps are dropping to around 12/14deg and Rh at around 90%.! I do randomly get High Rh when the light is on, max 75%, This very minute while the lights are ON, the Temps is 26deg and Rh is 65%. while the light is off, ive set the extractor fan to come on every hour for 15mins but it isnt helping really, if anything its drawing in cold air which i dont want. my tent is 120x120x230, i only have an extraction fan (TT100), carbon filter, 400w light, 1x oscillating fan. and is in an out house so you could say its outside. The plant is looking healthy at the moment but i dont want things to get out of hand. what would you Herbalists suggest i do? Tube heater for light off temps? intake fan or dehumidifier for the Humidity.?
  19. Hey guys. Long time lurker first time poster. Doing a grow set up for a mate in an attic, I have maybe 10 grows under my belt. Only done a year in an attic, winter was easy, summer brought botrytis through my in ability to control heat / humidity. So I've got to plan well this time and I don't have anyone to talk it through... So here I am. I'm planning a sphere of scrog using 4 plants around a vertical 600w or 1000w in a cool tube with out a reflector as I've read this is best for lumens reaching the plant as there's less reflected light and I can get the plants closer. I had success with my modified scrog from one plant, flattening it out into a hemisphere and putting it at a 45 degree angle opposite my 600w with a reflector behind. I got average of 17oz per plant. With regard to heat and smell I'm thinking about either having the cool tube running its own feed from fresh air out the roof to fresh air and using co2 enrichment to reduce my need for air exchange. I figured a small 4" carbon filter with inline fan ramped down low to keep a negative pressure on the tent vent that to a separate small tent in which I'd have baffles to make the air travel further, an ozone generator, some ona gel maybe an odour neutralising spray and another 4" carbon filter and fan venting up the chimney. I'll use air con / dehumidifier in main tent as necessary. Either the above way or ditch the co2 enrichment and have massive air exchange using a 5" filter on the end of the cool tube venting into the aforementioned separate tent when my ozone generator and all that stuff is. Any thoughts and criticisms would be greatly received. Tent size and equipment is all changeable as it's not all bought. Thanks in advance