Salt N Pepa: Back Again

[midwestgrown]

I have the tent open so idk how much more out the air can get hahahahaI feel like im missing something simple... I tried to get the silver box off the light to use the dimmer.. Lol this shouldnt be hard... At least we cover all grounds.. Should i close it back up? I thought i was smart by having the air flow vent facing out of the tent giving cold air a chance but sometimes i get shit backwards

 

[midwestgrown]

I thought with the room cold it would be better at keeping heat off the tent

 

[syenite]

I have the tent open so idk how much more out the air can get hahahahaI feel like im missing something simple... I tried to get the silver box off the light to use the dimmer.. Lol this shouldnt be hard... At least we cover all grounds.. Should i close it back up? I thought i was smart by having the air flow vent facing out of the tent giving cold air a chance but sometimes i get shit backwards

Haha don't worry, we'll get there. It's not too hot yet, so you have time to think carefully about what you want to do.

I think I'm still unclear on one thing. Do you have any piece of equipment that is actively blowing or pulling air out of the tent? So here I don't mean the fans inside the tent that move air around it, or the box AC that pushes air into it.

(Also yeah in the meantime, if you can dim the lights a bit that will reduce the heat. Especially because seedlings don't need a ton of light.)

 

[TorturedSoul]

second law of thermodynamics trying to tell me that you can’t cool something but can only remove the heat from it.

I thought that law only applied to closed systems. But I always get to the part about temperature not being affected by gravity, start thinking about a quantity of a compressible substance getting dropped into a black hole's event horizon, and sort of forget what I was doing. Spaghettification probably warms a body up, lol. Although... Never mind.

I'm still unclear on one thing.

You're in better shape than me, then.

I thought with the room cold it would be better at keeping heat off the tent

Room can be at 1°K and, if that air is not flowing through the tent, it's not going to-- Well, okay, that's not precisely true. But, still, you want a good (adequate for the space and capable of moving air through a restriction if you have a carbon filter involved) exhaust fan moving air out of the tent from the top. Should be three passive vents (one on each side and the rear) near the floor. Open those. CLOSE DOOR. Adjust speed of fan to achieve a slight negative pressure. Then measure the temperature inside the tent after it stabilizes (if possible, the temperature of a few leaves). If too hot, increase exhaust fan speed, wait for temperature to stabilize, and check it again. (Relatively) cool air is great - if it is flowing all the way through the space. If it's just following a short path in and out, though...

What exactly is your ventilation setup? I'm confused (that's probably obvious). Also, I forget what model of light you have. You mentioned something about it being a Mars Hydro, and being dimmable... So one of the TS or SP series?

 

[Southerncough]

I thought that law only applied to closed systems. But I always get to the part about temperature not being affected by gravity, start thinking about a quantity of a compressible substance getting dropped into a black hole's event horizon, and sort of forget what I was doing. Spaghettification probably warms a body up, lol. Although... Never mind.



You're in better shape than me, then.



Room can be at 1°K and, if that air is not flowing through the tent, it's not going to-- Well, okay, that's not precisely true. But, still, you want a good (adequate for the space and capable of moving air through a restriction if you have a carbon filter involved) exhaust fan moving air out of the tent from the top. Should be three passive vents (one on each side and the rear) near the floor. Open those. CLOSE DOOR. Adjust speed of fan to achieve a slight negative pressure. Then measure the temperature inside the tent after it stabilizes (if possible, the temperature of a few leaves). If too hot, increase exhaust fan speed, wait for temperature to stabilize, and check it again. (Relatively) cool air is great - if it is flowing all the way through the space. If it's just following a short path in and out, though...

What exactly is your ventilation setup? I'm confused (that's probably obvious). Also, I forget what model of light you have. You mentioned something about it being a Mars Hydro, and being dimmable... So one of the TS or SP series?

The law means that this is no such thing as cold, only the absence of heat. Just as there is no such thing as darkness, only the absence of light

 

[midwestgrown]

Ok i took a bunch of pictures maybe we can get to the bottom of this...

 

[midwestgrown]

Ive also had the air flow vent in every spot

 

[midwestgrown]

I have it where thw white fan is facing the top of light... Maybe thats my problem i was teying to cool it off but maybe im causing hot air to circulate??

 

[midwestgrown]

My lady keeps this place dam near freezing lol i have to long sleeve it in the house

 

[midwestgrown]

This is the light i did try to get the silver box off but i cant seem to get the screws out

 

[Southerncough]

Looks like you need to connect the duct booster/fan to some dryer vent tubing through the port on top to draw the hot air away from the light

 

[midwestgrown]

Looks like you need to connect the duct booster/fan to some dryer vent tubing through the port on top to draw the hot air away from the light

I feel like im insane i did have it set up that way and it didnt work so i opened the thing up and took off the dryer hoses.... Now i gotta get more zip ties before i can put it bavk that way

 

[Stormblessed]

Yeah that in-line fan should b attached to one of those vent holes, when u say it wasn’t working what exactly wasn’t? Did u have the duct going out one of those holes?

 

[Southerncough]

Hmmm...the 4" duct booster fans are a little wimpy. I have an old one that i could blow harder than with my lungs LOL. Now i have a nice little 4" inline fan that's pulling air out of two tents through a wye and even then anything more than half power sucks the walls in! And that's with a passive intake open at the bottom.
I wish i could borrow a little cool weather from ya, our central AC is cranked but the house is poorly insulated so you have to sit right under an AC vent. BUT the pool's 96° and feels like a hot tub at night!
Meanwhile, upon reading about your "awesome" neighbor I strongly strongly strongly urge you to start looking at carbon filters. If she starts smelling your grow I have no doubt she'd love to make an example out of you in front her kids about how LGBT folks are bad, law breaking people

 

[Stormblessed]

Yeah I have a cheap 4” inline fan and if I put anything in the duct to filter it, it doesn’t blow hard enough to go through, I’m really learning u get what u pay for lol

 

[Stormblessed]

Actually it is a duct booster fan I think

 

[Stormblessed]

I’m using it for an exhaust fan because I’m cheap, but I don’t need a filter cause I’m not worried about the smell so it’s only really for temperature control so it still works kinda

 

[The Phantom]

I’m really learning u get what u pay for

Yes, definitely look around as to what everyone has for their grows. There are a million vendors out there that are only looking the hobbyists from their money as fast as possible by selling snake oil or products that you simple don’t need. It’s just like my favorite past time, fishing, all you need is some line and a hook. You don’t need a $100k bass boat, $70k truck, $3k side scanning sonars, $1k rods, or a million and two lures in every color under the sun to catch fish. I always tend to watch videos on commercial grows and follow their lead. They are in it 100% for profit and know where or where not to spend money.

 

[Radogast]

I just did an experiment

Empty tent in 68F degree room

added 1500w heater set to low power (presumable 500w or 750w)

heated tent to 94F degrees

installed 4" duct fan (vivosun just like pictured) in an upper vent with no ducting.

Fan blowing out, heater on, temp stabilized at 72 degrees

Fan blowing in, heater still on, temp stabilized at 83 degrees


- - bottom line - -

Fan blowing out of the tent is MUCH more effective than in

 

[Southerncough]

I’m using it for an exhaust fan because I’m cheap, but I don’t need a filter cause I’m not worried about the smell so it’s only really for temperature control so it still works kinda

She's in an apartment with a bigot neighbor who I'm sure would be thrilled for any reason to get rid of the lesbians upstairs...it's going to be either a GOOD filter or jail unfortunately