does anyone here know how to deal with heat signature?

Wow, that is alot of info and some very ingenios ideas.. Top work as always!
(Tried 2 give u some Rep, but it said i have Repped u recently n must spread it around 1st or some crap).

AquafinaOrbit said:

The bong idea presented before combined with a chiller element from say a used water cooler seems like it could then be connected back into the air intake. Meaning not only would the water cool the exit air, but the intake air would be at least somewhat chilled. Could allow for lights to be lowered slightly in some situations im sure.

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good idea and like I said, you can add something to the water to mask the smell as well instead of buying carbon filters...

groputillor said:

Very cool idea. I'm very small time but I'm always interested in how things work and how to make them better. Here's the thing I think would be the biggest obstacle though: Pushig against the mass of the water is going to slow the exhaust fan significantly and wear em out pretty quick right? But maybe if you put a lid on the top and another exhaust fan sucking air out of the water container...and then when all your crops are done and your about to close shop, connect a giant bowl to it, close the door, and go brain dead lol

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If you use a wider container and the same volume of water, it wont work as hard and still dissipate heat in the same manner. I like the actual big bong idea... plug the tube with a multi-tap and get 10 to 20 heads in there with hooka hoses

AquafinaOrbit said:

The bong idea presented before combined with a chiller element from say a used water cooler seems like it could then be connected back into the air intake. Meaning not only would the water cool the exit air, but the intake air would be at least somewhat chilled. Could allow for lights to be lowered slightly in some situations im sure.

Click to expand...

I'm not too sure about recycling that air. It's being filtered through a water tank and that causes high humidity and mold over time. Little water and burry the thing in the yard.

Xeno420 said:

If you use a wider container and the same volume of water, it wont work as hard and still dissipate heat in the same manner. I like the actual big bong idea... plug the tube with a multi-tap and get 10 to 20 heads in there with hooka hoses

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Haha nice. I don't know much about engineering but now I'm gonna start asking my roommate cause he knows his shit. Why would it matter what size the container was or how much water there was? The air would only be pushing against the water right in front of the opening of the air tube. And I'm not sure you could do anything to make the force of the water in that area change. Pissin in the dark here, is that wrong?

Wow!!! Tons of good info. I ended up running an 8in. Stovepipe along the crest of my roof in the attic and putting a series if vents all along it near each roof vent, fortunately I have many.I was already running the exhaust up there, but it made a big difference in the GR temp as well, I dropped an average of 4 degrees. I'm in the process of messing with a 50gal. Drum and the giant bong idea for cooling the entire system. Thanks for all the good feedback.

groputillor said:

Haha nice. I don't know much about engineering but now I'm gonna start asking my roommate cause he knows his shit. Why would it matter what size the container was or how much water there was? The air would only be pushing against the water right in front of the opening of the air tube. And I'm not sure you could do anything to make the force of the water in that area change. Pissin in the dark here, is that wrong?

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Volumetric pressure. Big containers can carry more water but it's not going to put a lot of negative pressure on the fans since the water in the intake pipe is not accupying too much of the area needed for free flowing downward pressure. I flunked high school and have a GED but I'm sure this is how it works. Lets say you have a 5 foot by 3 inch pipe and it is burried a foot down into a tub of water. If you blow into it, it will be easy to blow the water out and blow bubbles on the other end. Now say you have that pipe submerged all the way into the tub and you have the lung capacity to blow it all out and blow bubbles on the other end, the further the water get pushed down into the tube, the more possitive pressure will be pushed against your lungs... the ocean, the further down you go the more pressure right? This is due to the molecules in the water wanting to compress due to the weight above from gravity. Look into it. Less stress on the fans due to less negative pressure placed on thesecondary fan and less possitive pressure on the primary.

Are you guys serious, who scans for IR. You must live somewhere the police are bored. They don't just fly around looking for grows its a waste of time and money but then again where im at marijuana is basically legal.

johnnyhash58 said:

Wow!!! Tons of good info. I ended up running an 8in. Stovepipe along the crest of my roof in the attic and putting a series if vents all along it near each roof vent, fortunately I have many.I was already running the exhaust up there, but it made a big difference in the GR temp as well, I dropped an average of 4 degrees. I'm in the process of messing with a 50gal. Drum and the giant bong idea for cooling the entire system. Thanks for all the good feedback.

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How do you mask the huge gurgling noise?

Xeno420 said:

We are talking about infrared, not xray technology. I don't think that your walls will permiate that much of a signature due to the fiberglass lining in the middle. Your windows on the other hand are thin and can definately show IR if not shielded right. Where they get you is in the exaust. They fly above and scan with their camera and look for heat signatures that are out of place, like heat coming from a trap door that goes to your basement or a hole in the yard that leads to nowhere or simply by the frequency the MH and HPS lights are emmiting.

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Your windows won't show the heat from inside your home, they will reflect the heat OUTSIDE the home. You can't determine what's going on inside by reading radiant heat from the windows, because they reflect the outside temps, not the inside.

There is no "heat signature" for grow lights. IR can't see heat inside your home unless it's VERY poorly insulated. Even then, it doesn't SEE inside, it just reads the surface temps of the roof.

2 1000W lights isn't anything to be concerned with. Many people use higher wattage space heaters in their homes, and I've never heard of any of them being "raided" as suspected grow houses.

Keep your grow room the same temperature as the rest of your house, don't vent hot air directly outside from your grow room, and make sure your ceilings are insulated.

Xeno420 said:

Volumetric pressure. Big containers can carry more water but it's not going to put a lot of negative pressure on the fans since the water in the intake pipe is not accupying too much of the area needed for free flowing downward pressure. I flunked high school and have a GED but I'm sure this is how it works. Lets say you have a 5 foot by 3 inch pipe and it is burried a foot down into a tub of water. If you blow into it, it will be easy to blow the water out and blow bubbles on the other end. Now say you have that pipe submerged all the way into the tub and you have the lung capacity to blow it all out and blow bubbles on the other end, the further the water get pushed down into the tube, the more possitive pressure will be pushed against your lungs... the ocean, the further down you go the more pressure right? This is due to the molecules in the water wanting to compress due to the weight above from gravity. Look into it. Less stress on the fans due to less negative pressure placed on thesecondary fan and less possitive pressure on the primary.

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Makes sense. I realized it later that day: a bong with more water is harder to hit.

thebest1 said:

Are you guys serious, who scans for IR. You must live somewhere the police are bored. They don't just fly around looking for grows its a waste of time and money but then again where im at marijuana is basically legal.

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I will probably never have to worry about heat signature but feds will fly over someone they have good reason to suspect. And I think Xeno said he doesn't use HID lighting but the guy's question and the idea I think sparked out interest. It's an interesting concept, otherwise you wouldn't have read it to the end and posted lol.

Mr. Good said:

How do you mask the huge gurgling noise?

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Good point. I was thinking he wanted to put it in the house in another room or something.

doobnVA said:

Your windows won't show the heat from inside your home, they will reflect the heat OUTSIDE the home. You can't determine what's going on inside by reading radiant heat from the windows, because they reflect the outside temps, not the inside.

There is no "heat signature" for grow lights. IR can't see heat inside your home unless it's VERY poorly insulated. Even then, it doesn't SEE inside, it just reads the surface temps of the roof.

2 1000W lights isn't anything to be concerned with. Many people use higher wattage space heaters in their homes, and I've never heard of any of them being "raided" as suspected grow houses.

Keep your grow room the same temperature as the rest of your house, don't vent hot air directly outside from your grow room, and make sure your ceilings are insulated.

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A heat signature is just the color that represents a certain temperature range on infared cameras. They track people from helicopters with it because we all are about the same temperature. Grows aren't all the same temperature. Unless you have a really oversized operation I'm sure you're right, it won't show much heat through your insulation, but a lot of people do exhaust into their attic and from there to outside. And if that shit is hot enough, AND if you are already suspect due to neighbors smelling or rats dropping the dime, there is a SMALL chance they could use FLIR to get you, and it IS a valid PC that holds up in court. It was first found to be unconstitutional, but on appeal that was overturned and now that case is used as precident for others to get fucked. Not the biggest worry in a grow, but why not cover your bases if it doesn't cost too much hassle.