Dehumidifier inside 4x4 grow box????
- Thread starter Th3Stud
- Start date
JoeBlow5823
Well-Known Member
Dehumidify the whole garage. You do have proper air exchange in your tent right?
Dontjudgeme
Well-Known Member
If you’re pulling in air from the outside and not running a sealed tent, a dehumidifier inside the tent is useless. Well I wouldn’t go as far as saying useless, just not as effective as dehumidifying the room the tent is inside of. Gonna take a nice size dehuey to control a room, but very possible. I however have mine in my tent because 1. it’s big, and 2, my door is always open so leaving it outside the tent will do nothing but dehumidify my whole house. I tried both both ways and inside the tent was more effective for my specific situation. Since you are in an enclosed area, outside the tent would do just fine.
I have a 4x4 tent in oregon. Humidity is an issue here. I ran a dehumidifier in my tent and it didn't even bump the hydrometer. If you are bringing in fresh air you have to consider your total cfm intake. I run 2) 240 cfm fans when the lights are on. When the temp trips the thermostat an other 240 cfm kicks on along with a big fan on the cool tube. I want to say 600 cfm. That's about 1000 cfm total. Being I displace my exhaust outside I would have to use an industrial grade dehumidifier to keep up with that many cfm. What I have done is run a small a/c unit directly into the tent. That seems to drop the humidity fairly effectively. I'm super new at indoor grows. I have tried 400, 600 and 1000 watt hps/mh bulbs in a cool tube. Reducing the number of plants and running a 600 watt bulb has gotten me the best humidity results. We shall see how this 600watt grow compares to last 1000 watt. Temps are down, humidity is down. Lumens are definitely reduced.... is the relative humidity lower outside your grow room? If so maybe run your exhaust outside and pick up fresh air from inside your home?? I live amongst many vineyards. The second my humidity goes up, powdery mildew follows. Grape plants apparently are a serious breeding ground for mildew
JoeBlow5823
Well-Known Member
Why are you exhausting outside?I have a 4x4 tent in oregon. Humidity is an issue here. I ran a dehumidifier in my tent and it didn't even bump the hydrometer. If you are bringing in fresh air you have to consider your total cfm intake. I run 2) 240 cfm fans when the lights are on. When the temp trips the thermostat an other 240 cfm kicks on along with a big fan on the cool tube. I want to say 600 cfm. That's about 1000 cfm total. Being I displace my exhaust outside I would have to use an industrial grade dehumidifier to keep up with that many cfm. What I have done is run a small a/c unit directly into the tent. That seems to drop the humidity fairly effectively. I'm super new at indoor grows. I have tried 400, 600 and 1000 watt hps/mh bulbs in a cool tube. Reducing the number of plants and running a 600 watt bulb has gotten me the best humidity results. We shall see how this 600watt grow compares to last 1000 watt. Temps are down, humidity is down. Lumens are definitely reduced.... is the relative humidity lower outside your grow room? If so maybe run your exhaust outside and pick up fresh air from inside your home?? I live amongst many vineyards. The second my humidity goes up, powdery mildew follows. Grape plants apparently are a serious breeding ground for mildew
I was running 1000 watt mh and it simply overheated the room the tent was in. In addition I saw lower humidity when exhausting not only the tube but the tent air itself outside.
JoeBlow5823
Well-Known Member
Gotcha. Pushing air outside can just be expensive/hard on your HVAC system because any air getting pushed outside is being replaced with outside air coming in through any air leaks in your house.
