vole
Member
Hello!
Let me first apologize for my origin and usage of metric units, I will try to add proper conversions when I remember!
Secondly, let me introduce myself. I am not and have never been a huge fan of cannabis, but I was in dire need of a hobby between semesters so I decided to start a small grow operation just for fun. I will of course have a taste of the final product but the majority I will give away to aficionados among friends.
So having a lot of free time on my hands, I decided to add a third wardrobe in my bedroom, but for other purposes than clothing storage. I spent half a week collecting the material I would need, but soon it was time to get to work:
Spent a full day with my limited set of tools to get the wardrobe in place:
When everything was in place, it was time to connect the electricity. I managed to bring darkness upon the whole first floor in the building during the first test run, but luckily I could locate the fuses and switch them back on before the neighbors emerged from their dens.
It was a simple error, and when corrected, all wiring could be hidden nicely:
Now I considered myself done, and conveniently I received a package with seeds and a propagator on the same day - so I planted three seeds of White Widow Automatic.
Today the first one came sprouting out of the soil, and for reasons unknown I decided for the first time at this point to test-run my wardrobe setup. Luckily it was light-proof and sufficiently sound-proof, but I am not satisfied with the temperatures.
I have four thermometers in the area, which has the dimensions 100 x 50 x 180 cm or 3,3 x 1,6 x 6 foot.
On the top, right next to the exhaust of the cool tube (400 watt metal halide), is a thermostat that controls the fan connected to the carbon filter. During light hours, the thermostat (unsurprisingly, due to its location) always shows 30+ degrees Celsius (86+ Fahrenheit).
In the middle, I have a standard outdoor thermometer hidden under some white plastic (to keep it out of light) and this measures between 25 and 29 degrees Celsius during light hours (77-84 Fahrenheit)
On the floor, I have an automatic humidifier with built in thermometer which usually shows somewhere between 24 and 27 (75-80) degrees.
I also have a tiny min/max thermometer on the floor which usually shows one degree less than on the humidifier (keep in mind that these are both under light).
I know that this is more or less fine temperatures, but I have all my fans on maximum speed which is something that I would like to avoid (and thought that I would be able to avoid).
I have a 300 m3/h (176 cfm) fan pulling air through the 15 cm (6") cool tube, and a 200 m3/h (117 cfm) fan pulling air out of the carbon filter. In addition I have a 30 x 12 cm (11" x 5") passive intake at the bottom, with two 180 m3/h (105 cfm) fans in front directing air upwards.
I believe this ought to keep low and consistent temperatures in the grow area (the intake air is around or slightly under 20 degrees Celsius (68 fahrenheit).
What could be the reason for those high and inconsistent temperatures? Should I do something about it?
I have a few ideas myself:
1) Expand the passive intake
2) Direct circulation fans more upwards
3) I have blocked the ventilation grills with a thin layer of universal carbon filter, to keep light out and sound down. I could remove those but I really don't think they are blocking the air flow, I could breathe through two layers without feeling much of a difference.
Thanks for reading and sorry for the huge wall of text.
I will continue uploading pictures in this thread while (if) the little girls grow up.
Best regards!
Let me first apologize for my origin and usage of metric units, I will try to add proper conversions when I remember!
Secondly, let me introduce myself. I am not and have never been a huge fan of cannabis, but I was in dire need of a hobby between semesters so I decided to start a small grow operation just for fun. I will of course have a taste of the final product but the majority I will give away to aficionados among friends.
So having a lot of free time on my hands, I decided to add a third wardrobe in my bedroom, but for other purposes than clothing storage. I spent half a week collecting the material I would need, but soon it was time to get to work:
Spent a full day with my limited set of tools to get the wardrobe in place:
When everything was in place, it was time to connect the electricity. I managed to bring darkness upon the whole first floor in the building during the first test run, but luckily I could locate the fuses and switch them back on before the neighbors emerged from their dens.
It was a simple error, and when corrected, all wiring could be hidden nicely:
Now I considered myself done, and conveniently I received a package with seeds and a propagator on the same day - so I planted three seeds of White Widow Automatic.
Today the first one came sprouting out of the soil, and for reasons unknown I decided for the first time at this point to test-run my wardrobe setup. Luckily it was light-proof and sufficiently sound-proof, but I am not satisfied with the temperatures.
I have four thermometers in the area, which has the dimensions 100 x 50 x 180 cm or 3,3 x 1,6 x 6 foot.
On the top, right next to the exhaust of the cool tube (400 watt metal halide), is a thermostat that controls the fan connected to the carbon filter. During light hours, the thermostat (unsurprisingly, due to its location) always shows 30+ degrees Celsius (86+ Fahrenheit).
In the middle, I have a standard outdoor thermometer hidden under some white plastic (to keep it out of light) and this measures between 25 and 29 degrees Celsius during light hours (77-84 Fahrenheit)
On the floor, I have an automatic humidifier with built in thermometer which usually shows somewhere between 24 and 27 (75-80) degrees.
I also have a tiny min/max thermometer on the floor which usually shows one degree less than on the humidifier (keep in mind that these are both under light).
I know that this is more or less fine temperatures, but I have all my fans on maximum speed which is something that I would like to avoid (and thought that I would be able to avoid).
I have a 300 m3/h (176 cfm) fan pulling air through the 15 cm (6") cool tube, and a 200 m3/h (117 cfm) fan pulling air out of the carbon filter. In addition I have a 30 x 12 cm (11" x 5") passive intake at the bottom, with two 180 m3/h (105 cfm) fans in front directing air upwards.
I believe this ought to keep low and consistent temperatures in the grow area (the intake air is around or slightly under 20 degrees Celsius (68 fahrenheit).
What could be the reason for those high and inconsistent temperatures? Should I do something about it?
I have a few ideas myself:
1) Expand the passive intake
2) Direct circulation fans more upwards
3) I have blocked the ventilation grills with a thin layer of universal carbon filter, to keep light out and sound down. I could remove those but I really don't think they are blocking the air flow, I could breathe through two layers without feeling much of a difference.
Thanks for reading and sorry for the huge wall of text.
I will continue uploading pictures in this thread while (if) the little girls grow up.
Best regards!
Worst case scenario is after all not so bad - buying a new exhaust fan.
