Help! Too Much Heat! - Light Advices

S

shtuyos

Active Member
Hello, I builded a wood indoor, here is the draw (its ugly but understandable), it has:
-2 Rooms Veg-Flower divided by wood shelf with holes to let the air go up, veg room is bottom 90 cm and flower room is up 115 cm.
- 1 x Exhaust Centrifugal Fan (Dospel VK 100) 290 M3/h, Connected with a carbon filter 200 m3/h. (up left in draw, i have a little wood shelf supporting the filter and the exhaust)
- 1 x Intake Fan (not sure but around) 180m3/h, with a Two Way Divider one goes to veg room and the other to flower room (Bottom left in draw, the one which goes to veg is bigger so a lot more new air there)
- 1 x 250 Watts Hps with reflector in flower room.
- 7 x 42 Watts CFL Cool White About 2500 Lumens each a total of 17.500, 4 of them are mounted on a table with chains for height control and 3 of them are fixed to the closet backwall at the highest point (chained table bottom right and fixed cfl in the middle in the draw, I plan to have to mothers in the back)
-3 fans for air circulation, 2 small clip fan those typical for growing in veg room, and one axial inline fan 150mm around 240 m3/h (was an exhaust fan) flower room pointing hps bulb.
-all the indoor have heat reflectors in the walls as reflector material
(like this one: http://i01.i.aliimg.com/wsphoto/v0/624884859/Silver-Color-font-b-Auto-b-font-Car-Windshield-Block-font-b-Sun-b-font-font.jpg

Got 8 plants from seeds 4 are flowering now and 4 are vegging in 7 liters pots.

I believe the air system its not a bad one, however i cant get good temps down 28 C° sometimes the indoor even goes to 32 C° a lot of air circulation inside, I measure the temp at cannopy level in the middle.

Also in the veg room its enough light? the distance from chained table to plants its about 7 cm, and the fixed maybe 20 or 25 Cm (the mother are soon reaching those lights!)

 
epicbud

epicbud

Active Member
If you can, separate the lights from the plants with a sheet of glass or plexiglass. This will help with your heat problems.
 
justugh

justugh

Well-Known Member
shtuyos said:
Hello, I builded a wood indoor, here is the draw (its ugly but understandable), it has:
-2 Rooms Veg-Flower divided by wood shelf with holes to let the air go up, veg room is bottom 90 cm and flower room is up 115 cm.
- 1 x Exhaust Centrifugal Fan (Dospel VK 100) 290 M3/h, Connected with a carbon filter 200 m3/h. (up left in draw, i have a little wood shelf supporting the filter and the exhaust)
- 1 x Intake Fan (not sure but around) 180m3/h, with a Two Way Divider one goes to veg room and the other to flower room (Bottom left in draw, the one which goes to veg is bigger so a lot more new air there)
- 1 x 250 Watts Hps with reflector in flower room.
- 7 x 42 Watts CFL Cool White About 2500 Lumens each a total of 17.500, 4 of them are mounted on a table with chains for height control and 3 of them are fixed to the closet backwall at the highest point (chained table bottom right and fixed cfl in the middle in the draw, I plan to have to mothers in the back)
-3 fans for air circulation, 2 small clip fan those typical for growing in veg room, and one axial inline fan 150mm around 240 m3/h (was an exhaust fan) flower room pointing hps bulb.
-all the indoor have heat reflectors in the walls as reflector material
(like this one: http://i01.i.aliimg.com/wsphoto/v0/624884859/Silver-Color-font-b-Auto-b-font-Car-Windshield-Block-font-b-Sun-b-font-font.jpg

Got 8 plants from seeds 4 are flowering now and 4 are vegging in 7 liters pots.

I believe the air system its not a bad one, however i cant get good temps down 28 C° sometimes the indoor even goes to 32 C° a lot of air circulation inside, I measure the temp at cannopy level in the middle.

Also in the veg room its enough light? the distance from chained table to plants its about 7 cm, and the fixed maybe 20 or 25 Cm (the mother are soon reaching those lights!)

Click to expand...
the best way to fix the heat is to go a powered intake for more air to be added in faster and to control the air intake temp

what is the temp of the air outside your grow area ....what is the temp inside your grow area running
 
G

GrnZ32

Member
Assuming your outside the tent ambient air is cooler temperature then simply attach a larger exhaust fan. Stronger duct fans will draw in more air through your inlets and ports and allow better air exchange overall. it wouldn't hurt to upgrade the intake as well but I feel the exhaust is more efficient for the same reasons turbochargers on your favorite sports-car are more efficient than superchargers put on drag racers. But hey its not an ICE and having both is even better so why not

since I don't believe a 250 watt air cooled hood exists, try to replicate the effect of separating the heated air like epicbud suggested with Plexiglas or glass and better situated circulation fan placement to direct air up and out.

Also it would greatly help if you upgrade that hps to a set of cree cxb3590 LED bulbs running at 150 watt effectively achieving the same thing in that space with space to put more LED's and amp up your overall harvest.
 
Last edited:
hotrodharley

hotrodharley

Well-Known Member
Where is the ballast for the HPS sitting? Have you considered buying a Cooltube reflector? Suggesting upgrading to an expensive lighting array doesn't seem useful at this point.
 
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