Air intake is only a part of the indoor growing equation. Ideally, your extractor fan system should replace the air in your grow . It helps ensure that the air in your grow tent is conducive to healthy growth, strong plants and great yields. And circulation fans are used to keep . To calculate the volume of your grow room/tent, multiply its length, width, and height (ideally in feet). The simplest setup is to hang the carbon filter inside the tent. In smaller tents, passive air intake may suffice using the tent's ventilation panels. The size of your grow tent will depend on the size of your garden and the type of plants you want to grow. A 33 grow tent setup will give you a little more space. logdog said: If your environment is fairly stable passive intake is usually sufficient in my experience, I run a 5x5x8 tent and usually get by fine with a 6 inch passive duct in extremely hot weather I will tape this duct to a portable ac if I need extra cooling but rarely do. Apart from installing a grow room air conditioner, venting a grow tent is the only way to keep the temperature down. Get an air box intake filter or a cone car air filter to filter air coming in Like x 1 GrasscityGal Well-Known Member #17 GrasscityGal, Oct 14, 2019 Sade said: I have an intake set up pulling in fresh outside air into my tent. Our final CFM formula would be: 64 (base CFM) x 1.2 (led lights) x 1.6 (carbon filter) x 1.9 (bends) = 233 CFM. The indoor growing equation does not include air intake. Dec 15, 2011. In most cases a 4x4 tent should not need an intake. By supplying fresh air from outside your grow tent, you provide CO 2 for your plants, driving their photosynthesis. To function properly, your grow room must be a negative pressure . 60%. Any extra air runs up and out the chimney. The HEPA or carbon filter you use will prevent these . 2. Do Grow tents need air intake? If we only had LED grow lights, a CO2 filter, and a few bends. As we enter an era of legalization the air intake filter should become more important than the carbon-scrubbing exhaust filter that was designed to . 5.5 m/s. The proper size fan for a 4x4 grow tent: Let me give you an example calculation for a 4x4 grow tent, which is a pretty common size among indoor growers: Most 4x4 tents measure 48in x 48 in x 80 in. They hold two to four marijuana plants, but the extra room will make the growing experience less congested. Then, use the remaining available straps to hang the carbon filter. The problem is that when the light is off the temp is gona be really low n that draft of cold air at night caused me mildew before. However, at 100% the box has almost no effect on the amount of air being pushed out of the tent. Passive air intake can be used in larger grow tents, but they will need higher exhaust fans. Divide the overall volume of your sealed grow tent by three to optimize the exhaust according to the ideal exhaust duration. Grow tents give you the ideal environment for growing: flood-proof floors and heavy-duty doors with zippers covered by thick Velcro panels designed to create an air-tight seal, keeping the odors and pests in and the air out. Secure either end of the duct to the fun, buy using clips. #1. After we have taken the proper measurement of the room, we simply need to divide it by three . Show Comments. 3. At the same time expelling the air inside will keep temperature and moisture build-up under control, preventing mold and mildew from forming on your plants' leaves, inhibiting growth. So the total volume of air in a 4x4 grow tent is 4ft (length) x 4ft (width) x 6.667ft (height) = 106.67 cubic feet. Moves air through your target. Ventilation has helped me access CO2 from outside . Keeping temperature down; Second, indoor grow lights generate a lot of heat.Marijuana doesn't like too hot environments. Currently my ventilaition setup consistes of a hi-powered 5 inch Ruck with a 5 inch low powered intake fan. Now you need to find an exhaust fan that can output this much CFM, as per your own grow tent and accessories needs. Working at a low noise level, an intake fan will bring fresh air permanently inside the tent, creating a better airflow for your plants. Larger grow tents can benefit from using passive air intake as well but will require higher CFM exhaust fans. You need an air extractor fan system to keep the air in your grow room or grow tent fresh. Keep in mind I also have a 6" duct for air intake. The money would be better spent on air cooling your light or increasing extraction. Ducting 90 Bend. If you have a grow tent that is 4' x 2' by 5' tall the tent when set up contains 4x2x5 . For an average 4 2ft hobby grow tent, for example, the calculation would look like this: 4ft (length) 2ft (width) 5ft (height) = 40ft. Helps Strengthen the Stem of Plants: Therefore, my grow tent has 40 cubic feet. Keep The Perfect CO2 Level For Cannabis Like all plants, cannabis needs carbon dioxide to survive. source. How do I filter my intake air grow tent? iPower 6 Ducting, 25. Issue 2: Secondly, it's the mold buildup due to the RH from the grow room air. 8.6 m/s. Preheats the air saving money on my heating bills. location efficiently for optimal ventilation. Thanks a lot you guys and keep up the great work. Do you need an intake filter for a grow tent? Tip: when choosing your lights, aim for 40W per plant. Since aluminum reflects light, loop the ducting in a small spiral outside the tent to avoid having a . It really depends on the room your set up in, if you need active . An exhaust should replenish all the air for every grow tent every three minutes. Air intake You'll need small inline fans to ensure adequate air intake in your grow tent. 33. Ideally, your extractor fan system should replace the air in your grow room every minute, or at least every three to five minutes. UPS dropped off my new 576w led grow light today so I was able to hang it and run it. 6 mo. It's really the intake vent that I may need to be creative to keep the light out. Sep 15, 2014. 8.5 m/s. Answer There are three things that running an exhaust fan accomplishes when it exchanges the air inside your grow room with fresh air. A grow room ventilation is a system that ensures a continuous flow of air between the outside world and the indoor grow area. To calculate the ideal duration of which an exhaust fan should be turned on inside a grow tent, we must first measure the grow tent. Passive systems will actually not use an intake system. If your tent doesn't have suitable openings for intake ducting, you can buy a flange kit for grow tent walls and install an opening fairly easily.. Although, you need to calculate this based on tent size. If you have a large tent that is too big, it may be necessary to cut a hole in the center of the top . ECO FARM 4"/6"/8" IN-LINE FAN EXHAUST AND INTAKE FAN. Many factors like grow tent size To measure CFM, or cubic feet per minute, you will need to multiply your room's length x width x height. What is an air intake fan for a grow tent? Active. Solution: Well, using a good carbon filter right and the end/beginning of the grow tent exhaust is a quick solution to the problem. 1. For the majority of grow tent growers, a passive intake system works perfectly. The most common grow room systems use a combination of exhaust fans and ducts or pipes to maintain airflow. The air will go through the carbon filter first and then the exhaust fan will blow the air out of the room. http://DFzRadio.com Julian from Arlington, TX phoned in LIVE and has an outtake fan going through his carbon filter and cooling his HID grow light in his gr. Many factors like grow tent size, grow lights, and inline fans contribute to creating the optimal growing environment. What size grow tent do I need? For this, you'll need a carbon filter, appropriate ducting, and a good inline fan: iPower Carbon Filter. Their role is to cool the growing room, being much more used during the summer. Third, the fresh air coming into the grow box carries with it a fresh supply of CO2, which the plants need constantly to keep growing. Anyway if you want a fan designed for these tents then depending on your country look at "hydroponics duct fan" or similar. Sometimes, depending on the kind of crop you want to grow, you may need to filter the air that comes out of your grow tent to keep the extra pungent smell of some crops in check. A well-organized 3 x 3 can deliver (an average of) a pound of weed every month. 5.0 m/s. ago. Using an old carbon filter provides light-proof air intake for grow tents. Rather than using an air intake system, passive systems utilize an inline exhaust fan, creating a vacuum that draws stale air out of the tent, pulling in fresh air from intake ports at the tent base. No, just do passive air intake. It also includes some mechanism for keeping airflow inside the grow room. Ventilation and exhaust are the core of it all. We recommend getting a fan slightly larger than the . Mathematical Explanation. Ensure that the flange end of the filter is facing the filter directly. Open all bottom vents and close all vent socks up high. So, if a ventilation fan is rated as 455CFM, you can expect the fan to move 455 cubic feet of air every minute. Do I need air intake in my grow tent? This stands for cubic feet per minute. CO2 is one of the key ingredients for proper plant growth. Filters the air a second time. Many factors like grow tent size, grow lights, and inline fans contribute to creating the optimal growing environment. Now Im upgrading my CF anyway as the budget one I have is 12 months old and on the way out. For small-scale gardening, a grow tent that is 2 to 4 feet wide and 2 to 3 feet tall is typically adequate. Differences between air intake and extractor fans For example, if your grow tent is 4' x 4' x 8', you are working with 128 cubic feet. Wintertime that's not a problem. So this is the first tent I've ever owned so I have a couple of questions. LOW NOISE LEVEL: Durable plastic fan housing and blades for extremely low noise (<37 dB); Variable . Intake fans are crucial in a grow tent because they create cleaner air, eliminating dust from coming in. Vent Uncovered. Gastanker, you are right about bringing the cold air into. You are probably familiar with the acronym CFM. Once you attach the fan, ensure the tapered end faces the exhaust hole. However, in the grow tent, the levels of CO2 keep decreasing. Posted December 13, 2010. Personally I would use a duct fan to exhaust the tent from the top, which creates negative pressure, which turns any hole into an automatic intake. Hey lads, Im thinking of upgrading from a 1msq tent to a 240 x 120 one, over twice the size. I think this is because intake filters are difficult to incorporate into grow tents that do not have the same type of airtight seal a rigid plywood grow-box does.