How To Install Inline Fan In Grow Tent

How to Install Inline Duct Fan in Grow Tent

One of the most effective methods to get started in gardening or a DIY agricultural project is to get an indoor grow tent. There are a number of important aspects to consider in order to guarantee that your grow room operates at peak efficiency. For example, the quality of the air that your plants breathe has a big impact on the overall growth levels of your plants. Consequently, knowing how to install an inline duct fan in a grow tent is one of the most important considerations to make in this process.

First and foremost, you will want sufficient ventilation to aid in the promotion of the development of your plants.

Even more importantly, it will assist in cleansing the air.

As a result, your plants will develop into healthy and robust individuals.

Installing an Inline Duct Fan in A Grow Tent

While installing an inline duct fan may appear to be a difficult task, it is actually rather straightforward and may be completed by the homeowner. You will only need to be aware of a few important parts of the procedure in order to succeed. One of the most important considerations is that the ducts should be straight and without any bends in order to provide adequate air flow. To assist you in appropriately installing the duct fan, here are some suggestions to remember:

Mount Your Inline Fan on the Tent Ceiling Bars

After you’ve set up the tent, the following step is to attach the inline fan to the ceiling. Generally speaking, mounting the fan to the ceiling bar of the grow tent is the most suggested method. As a result, try utilizing adjustable clips to assist you in hanging the fan and allowing it to dangle a few inches below the ceiling. It’s a procedure that will guarantee that you have enough room on the ground and will also aid in the removal of hot air from the upper area of the tent throughout the night.

  • The most important component of this operation is to make certain that the carbon filter is installed appropriately.
  • Furthermore, you have the option of hanging it or choose to set it in a secure spot on the floor.
  • Once the fan is in place, make sure the tapered end of the fan is towards the exhaust hole.
  • Check to be that the flange end of the filter is directly facing the filter when installing it.

Clips should be used to attach either end of the duct to the sandbox. The other part was then attached to the carbon filter. It is possible that you will need to use a different method for filters that will be placed on the flow.

Connect the Fan to the Ducting

In the event that you fail to properly connect your inline fan to the ducting system, hanging it may be ineffective. As a result, make certain that the ducting is correctly connected so that the free circulation of exhaust gases is promoted. Aside from that, the pipe should be free of flaws and should not have any bends that might result in holes. Even more importantly, the ducting should not be too long since the length may reduce the efficiency of the fan’s operation. Remember to exercise caution so that light does not get through the ducting into the grow tent, which is designed to be light resistant in the first place.

  • Keep in mind to make sure the ducting is routed through an exhaust port.
  • If you leave it neglected, it might serve as an access point for vermin and other unwanted visitors.
  • When connecting the fan to an electric source, take precautions to guarantee the highest level of safety.
  • The use of a competent electrician to assist with electrical connections is highly recommended while making these types of connections.
  • For example, make certain that the fan is connected to the right power outlet in order to avoid problems such as surges.

Inline Duct Fan Set Up in Grow Tent Frequently Asked Questions (FAQ)

A. Yes, a fan is required in your tent in order to assist adjust the air quality in the shelter. The humidity and temperature levels required by the plants in the grow tent must also be precisely controlled for maximum growth. A fan in a grow tent will ensure that air is circulated properly, and you will find it simple to regulate the temperature to meet your specific demands.

Q. How long do I keep a fan in my grow room?

A. It is entirely dependent on the inside conditions of the grow chamber, as previously stated. When you believe the temperature and humidity levels have risen over the acceptable ranges, you may always switch them off completely. Later on, you will have the option of scheduling the fan to turn on and off at certain intervals. For example, you might set the fans to run in 10-minute intervals every hour for a total of 1 hour.

Q. Why do I need a fan in my grow room?

When it comes to managing air quality, a fan is really important. Plants are living entities, and they require clean air for a variety of reasons, including growth.

In contrast to a typical farm, a grow room necessitates the use of artificial resources in order to regulate the air quality. Keep in mind that the quality of the air in the grow room is directly linked to the amount of yield you will receive from the space.

Q. How often can I run the exhaust fan in a grow tent?

In order to save energy and maintain ideal air quality, it is generally recommended that the fan be operated at particular times throughout the day. By renewing the air for at least a third of the time, you may reduce the amount of time it takes to exhaust. Consider purchasing the finest grow tent exhaust fan for your needs in order to get the highest possible output. elit scing elit Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo, luctus nec ullamcorper mattis, pulvinar dapibus leo.

Q. How do I install a duct fan in the grow tent?

When it comes to this operation, components such as insulated and heavy-duty ducts are frequently utilized. The efficacy of a device is greatly influenced by factors such as its length and size. Make sure the duct is as short as feasible, which is a good tip. This one-of-a-kind length contributes to reducing the distance that air must travel before exiting the garden.

Q. What size extractor fan do I need for a grow tent?

A variety of factors influence the selection of the best fan for your grow tent. For example, the size of the grow room and the quantity of plants in the space are important considerations.

Q. What is the size intake fan for a grow room?

Inline fans must provide 1 CFM per square foot of available area in the room, which is the industry standard measurement. You can find out the size of your room by multiplying the length by the breadth of the room. This should assist you in gaining a notion of the size of the system you have and the intake fan that will be appropriate for it as well.

How Does an Inline Fan Work?

An inline exhaust fan may best be characterized as a fan that is installed inline with a pipe to remove waste from the system. Even more so, the fan is often built in a location that will give the greatest amount of air filtering advantages possible. The effectiveness of the fan is influenced by a number of different aspects. When it comes to the capacity of the fun, the distance between the ducting where the air goes through will be determined by several factors. In addition, the power rating of the motor and the size of your grow room are important considerations.

Benefits of Using an Inline Fan In Grow Tent

As a result of the fan being installed in a strategic place, the noise levels in the room that will be purified will be kept to a minimum. Reduced noise levels Additionally, if you have a well-insulated roof space, or if you prefer a silent model, the quiet fans will be beneficial to you. The length of the duct run – inline fans are intended to be used in conjunction with ducting. When compared to simple fans, this indicates that they can preserve a significant portion of the mentioned capabilities.

For example, if you wish to collect unpurified air from a grow tent, the length of the tube should be as short as it possibly can.

It’s simple to create many inlet or outlet locations with an inline fan by utilizing do-it-yourself approaches. When you have a large grow area and wish to have several intake locations, this function is really useful.

Components for Creating an Inline System

  • Ventilation system requires an internal vent, which serves as the point of extraction for the system, to function properly. Generally speaking, these vents and grills are available in a variety of forms, sizes, and colors to accommodate various characteristics of a grow room environment. It is preferable to use a short vent in order to limit the distance that air must travel
  • The use of ductwork to link the vent and the motor, as well as the connection of the motor to an external vent, may be required. There are many different types of ducting available, and the most suitable for grow rooms are the flexible varieties. Another kind is semi-rigid and insulated ducting, which are two of the most common options. Fan– A fan is the most important component of a grow tent system, and the fan you choose will be determined by a number of criteria. These considerations include the size of the space and the specific purposes for which the fan is intended. Calculator for exhaust fans– this tool may be used to determine the degree of extraction necessary for a system. It is preferable to have a fan with a diameter and length that are identical to the ducting that you will be using. It is important to remember that a fan can only be used with ducting that has a specified diameter. The amount of effort that the fan must do to cleanse the air will be reduced if the length of the fan is decreased. Lastly, an external vent can be installed on the exterior wall or on the roof, depending on the design of the building. Many alternatives are accessible in this area
  • For example, As an optional feature, you may also install a backdraft shutter in conjunction with the ductwork to assist avoid problems such as air flow backward. This will also assist to keep the system closed while the fan is not in use, which will be beneficial. Duct tape should be sufficient for holding everything in place. As a result, consider including work claps into the process.

A grow room ventilation system is a device that maintains a constant flow of air between the outside world and the inside growing environment. The system also incorporates some sort of ventilation system to keep air flowing through the grow area.

How Does A Ventilation System Affect Plants?

The primary purpose of a grow room is to give plants with the optimal growth environment, as opposed to what is accessible to them outside of the facility. As a result, this also entails delivering a continuous supply of fresh air that is high in CO2. Using a ventilation system, you can keep the CO2 levels in your grow room at the appropriate range for plant growth. As the quantity of CO2 in the air decreases, it becomes necessary to maintain a steady supply of fresh air from the outside. Plants are accustomed to growing in the elements and wind of the outdoors, where they are exposed to the elements.

The following facts will help you understand why these systems are so important for plant growth:

How to install an exhaust fan in a grow tent?

It is the primary purpose of a grow room to give plants with an environment that is superior to that which may be found outside while growing plants. Thus, delivering a continuous supply of fresh air that is high in carbon dioxide is essential. Ventilation systems assist growers with keeping the CO2 levels in their grow rooms at appropriate levels for plant growth. The requirement for a continuous supply of fresh air from the outside increases as the quantity of CO2 in the air decreases. In nature, plants are accustomed to growing in the elements and being exposed to the wind and rain.

Here is some information to help you understand why these systems are so important for plant growth: a.

  • The inline fan should be connected to one of the new ceiling bars in your grow area. Consider utilizing adjustable rope clip handles to suspend fans from the ceiling, which work nicely for this purpose. Either move the inline fan over so that it fits directly into the exhaust hole, or connect the inline fan to your ducting for further convenience. A convenient exhaust hole allows you to run the inline fun through and out of the machine for maximum ease. Hang the carbon scrubber — in most cases, it should come with handy ropes to make installation easier
  • Connect the carbon scrubber to the inline fan in such a way that the fan pulls air through the carbon scrubber. Consider utilizing ducting or just connecting them together if they are the same size as one another. Confirm that your components are the correct size and that they are arranged in the proper sequence. Through the bottom intake holes and up to the filter, the outside air will be passively drawn in from the surrounding environment. After then, the air is moved via the inline fan and out through the exhaust holes as a result of this innovative strategy.

The success of your grow is determined on the attention to detail. If you want to maximize your produce, you’ll need to educate yourself on the subject. How to install an inline duct fan in a grow tent is covered in this article. Read on to learn more. When you know how to properly do this operation, it will be simple to keep the air quality for your plants at an acceptable level. The use of an inline duct fan makes it simple to cleanse the air, and the addition of a carbon filter can improve the fan’s overall effectiveness.

Furthermore, you must take into account the remaining aspects and make certain that you “boil down to the minor particulars.” You may rest assured that your grow room will provide the highest possible output.

See also:  How To Pitch A Tent In The Rain

How to Ventilate Your Grow Space

You must have adequate ventilation in order for your plants to flourish. By giving your plants with fresh air from outside your grow tent, you are supplying them with CO2, which is necessary for their photosynthesis. Meanwhile, removing the air inside will help to keep the temperature and moisture buildup under control, avoiding mold and mildew from growing on your plants’ leaves and so hindering their ability to thrive.

The extra benefit of refreshing the air within is that it helps to eliminate unpleasant smells. The information in the following tutorial will teach you all you need to know about installing and configuring your ventilation system.

Essential Grow Tent Parts

Assuming you have previously chosen or purchased your grow tent, this tutorial is equally useful if you are working in a grow room. This is a list of the three most important components that you’ll need to put together while building a ventilation system:

Inline Duct Fan (Active Exhaust Fan)

An inline duct fan, also known as an extractor fan, is a device that is used to exhaust hot and humid air from within a growing chamber or tent. Even little variations in temperature and humidity may have a significant impact on your chances of generating a fruitful harvest. Furthermore, unregulated heat and humidity cause poor growth circumstances, resulting in your plants being unable to absorb water or simply failing to make it through the day. The use of an inline duct fan in your grow room is essential for controlling the climate in your growing environment.

Using an active exhaust fan to draw in cooler air can assist you in maintaining a comfortable inside temperature level.

In ventilation systems with passive intake, inline duct fans also serve as a vacuum, drawing in new CO2 from the outside air and bringing it into the system.

Duct Tubes

Inline duct fans are attached to your grow room using ducting that is clamped or glued in place. The ducting serves as a channel to divert stagnant air away from your grow space. They are typically constructed of aluminum, although they may also be multilayered to provide additional protection against rips. Its size and bends have an impact on the performance of your inline duct fan, but we’ll get into that later.

Carbon Filter

A carbon filter will be required in order to prevent scents from traveling to your garage or closet. This device, which is also known as a carbon scrubber, removes the smell of plants from the air, capturing the odor and neutralizing it. Carbon filters are a must-have for growers that have to cope with very strong odors. They are also used to trap pollen and spores, which helps to keep the air clean for farmers who suffer from allergies or respiratory problems such as asthma.

Typical Grow Tent Setups

There are several configurations for these components that may be used to create airflow into your grow environment. As a standard configuration, the fan and the filter are placed inside, which makes it easy to control while also dampening the noise from the fan. If air is being drawn out of your grow room, one or both of these components can be placed in any sequence within the ventilation chain. It is possible to customize your ventilation system in at least four different ways in order to meet your requirements.

The fan and/or filter can be placed outside of the grow tent in this situation.

Because heat rises to the top of the building, venting that hot air at that point will improve the efficiency of the ventilation process. Your carbon filter will also operate better if it is installed at the greatest possible elevation.

What Size Inline Fan do I Need?

There are many different sizes of grow areas, and each one requires a particular amount of airflow to be properly ventilated. It is critical for maximum plant growth that stale air within your grow room is exchanged with fresh air from the outside of your grow area. CFM (cubic feet per minute) is the unit of measurement for this number. To determine the quantity of airflow required for your grow room, first calculate the volume in cubic feet of the space. Most grow tent specifications are offered to you in inches; thus, you must convert the size of your space from inches to feet.

This will match the capacity of your grow room, and the needed airflow will be equal to this value in cubic feet per minute, or CFM, as well.

When the dimensions are added together, the result is 72 ft 3 in length.

Keep this amount handy since you’ll need to adjust it to account for the ducting, carbon filter, and any other accessories you decide to install.

Factoring in Accessories

In order to boost your base CFM, you must multiply it by the efficiency percentages of your accessories. Adding components to your grow room, including as ducting and carbon filters, may limit fan performance, which will have an impact on the fan size you require. When it comes to ducting, the quantity and sharpness of its bends play a role in determining the resistance to airflow. As a result, airflow decreases the longer it needs go, making a straighter ducting path more effective. The greater the sharpness of the curve, the greater the severity of the efficiency drop; a 30° bend reduces airflow by 20%, while a 90° bend reduces airflow by 60%!

  1. If you are utilizing LED grow lights, you must also take into consideration their heat production, which can raise your necessary CFM by as much as 50%.
  2. Because the efficiency of accessories on the market might vary substantially, you can utilize approximated efficiency percentages based on the type of component you are using.
  3. This amount is multiplied by the efficiency % of each component to arrive at the final result.
  4. Adding in the heat output of your grow lamp (about 50%) gives us a needed CFM of 249 cubic feet per minute.
  5. The following is a breakdown of this calculation: Multiplying your base CFM (72) by the percentages of ducting (20 percent), carbon filter (60 percent), silencer (20 percent), and grow light heat (50 percent) of your choosing will provide about the 249 CFM you require.
  6. This will let the fan to operate at lower speeds while remaining quieter, as well as providing additional area for future expand space system growth.

Look for inline duct fans that are powered by direct current (DC) fan motors, which are the quietest as compared to alternating current (AC) fan motors. PWM-controlled EC motors are also acceptable in terms of acoustic performance.

How to Manage Grow Space Noise

There is no question that you will hear some noise when employing a high-powered fan to air your grow environment. You wouldn’t want to spend an extended period of time in an area with excessive noise pollution or catch the attention of your neighbors. Fortunately, you can plan your component selection with noise reduction in mind, and you can take further steps to make your grow area as as quiet as possible. Making the decision to choose a fan with speed controls and a CFM rating that is 25 percent more than your minimal need will allow you to run the fan at lower speeds without compromising performance.

If you want to further muffle the sound of your active exhaust fan, you may attach a silencer to it, which will lessen the sound of the intake fan.

Grow Tent Fans – Sizes, Placement, Setup, FAQ (Updated 2022)

It is critical to have adequate circulation in your grow tent if you want to avoid mold and powdery mildew from forming on your cannabis. Throughout this article, I’ll cover all you need to know about choosing an inline fan for your grow tent and how to correctly install and configure it as well. How to choose the right grow tent fan size and power rating, where to install the fan, how to set up your grow tent fan, and what additional accessories you’ll need are all things I’ll assist you with.

Selecting the proper grow tent fan size and power:

“What is the right grow tent fan size?” is definitely one of the first questions you’re thinking about. as well as “What is the recommended grow tent fan power?” Generally speaking, when it comes to replenishing air in a grow room, the rule of thumb is that you should be able to replace all of the air once each minute. That is the CFM rating, which you will learn more about further down. In order to keep your grow tent cool, the fan diameter will be decided by the CFM (cubic feet per minute) rating that you want.

So don’t be concerned about having the correct CFM rate.

Then there are a few other factors, such as a 25 percent drop in fan power if you include a carbon filter, and a 30 percent loss in fan power for each 90-degree curve in your ducting.

The proper size fan for a 4×4 grow tent:

Let me give you an example of how to calculate the area of a 4×4 grow tent, which is a fairly typical size among indoor growers: The majority of 4×4 tents have dimensions of 48 in x 48 in x 80 in. As a result, the total volume of air in a 4×4 grow tent is 4ft (length) x 4ft (width) x 6.667ft (height) = 106.67 cubic feet (4ft (length) x 6.667ft (height). However, this does not imply that you require a 106 cfm fan. When you consider that a carbon filter will lower your fan efficiency by 25 percent, and that one 90 degree duct bend would reduce your fan efficiency by another 30 percent, a fan that produces 215cfm will produce 112cfm (200cfm x 0.7 x 0.75).

So, for a 4×4 grow tent with an area of around 106 cubic feet, a grow tent fan (inline fan) with a capacity of 215cfm would be sufficient.

What size fan is needed for other grow tent sizes?

(Click on image to expand) It is important to note that grow tent inline fans are not made to the precise CFM output you want, thus you may have to go over by 50-100cfm when selecting a fan for your grow tent. I recommend using a fan with variable speed settings, such as the AC Infinity S or T Series, so that you may modify the CFM to meet your precise requirements. Each of the AC Infinity fans listed below has ten speed options, so if you just want 100cfm, you may get the most basic model, which is a 205cfm fan, and run it on the middle speed level to achieve that volume of air.

Grow tent fan placement:

Depending on where you want your grow tent fan to be, you have two alternatives. It is possible to work either inside or outside the grow tent. What’s the difference between the two? If you pick outdoors, the fan will draw air from the interior of your tent to the outside through a duct located on the top corner of your tent, allowing you to be more comfortable. You’ll want the fan and filter (if you’re using one) hanging near the top portion of the tent, where the warmest air will naturally travel to keep it cool inside.

Hangers are not often included with fans, so double-check that you have them.

If you decide to place the fan outside, you’ll need to figure out how to get it to rest in a comfortable position.

Because of the fan’s ability to produce a low pressure condition within the tent, when air is blasted out, new air is naturally drawn into the tent.

Grow tent fan setup:

Yes, the diameters of your inline fan and duct will need to be the same at the place where they connect.

Passive or Active Air Flow For Your Grow Tent?

The sorts of fan sets you may utilize in your grow tent or growing room are passive and active. Passive fans are the most common. The difference is whether you want air to passively re-enter your grow tent or if you want it to aggressively re-enter your grow tent. Passive grow tent air circulation relies on a single inline fan to evacuate hot air from your grow room, reducing the need for additional fans. When air is forced out of your enclosed grow area, the pressure in the room drops to a negative pressure, which means that air from outside the tent or room should naturally be drawn in via any openings to replace the air that has been forced out of the space.

  1. If you want to guarantee that the air returning to the tent is being filtered, or if the air returning to the tent is not returning rapidly enough, active grow tent air replacement is the best option for you.
  2. Simply ensure that you have the right size ducting (which should be the same diameter as your fan), duct clamps, hangers for hanging, and zip ties before beginning (make sure zip ties are long enough to go around the diameter of your carbon filter).
  3. To install the filter, just attach ducting to the side of your fan that is responsible for sucking in air.
  4. Clamps should be used on both sides (usually provided).

If you’re using an active air flow configuration, I’d recommend operating both fans at the same speed to ensure that the quantity of air escaping the grow tent equals the amount of air returning to the grow tent.

How to install a grow tent fancarbon filter inside your tent:

Attach the hangers to the support bars that run along the roof of your grow tent. You’ll need enough for the fan and the ducting, so plan accordingly. Make sure they’re the right length for the fan you’ll be hanging. Keep in mind that heated air rises to the top of the tent, so avoid hanging the tent too low. 2.Attach zip ties or metal brackets to the attachment area of your grow tent fan: Place zip ties or metal brackets to the attachment region of your grow tent fan. Zip ties should be used to connect hangers.

In order to use your grow tent fan, you must first connect your carbon filter to the intake side of the fan (the side that sucks air in).

You may either connect it directly to the fan or use ducting to attach it to the fan.

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Attach the grow tent duct sleeve to the fan ducting by wrapping it securely around it.

Other Inline Fan Installation Notes:

The setup is straightforward; it took me no more than 30 minutes to complete my AC Infinity T4 installation. The most efficient design would be to route the duct out a window so that the hot air from your tent does not just blow into the room where your tent is placed, where it would be sucked back in and render the entire operation ineffective. Not everyone has the benefit of having a window in close proximity to their camping site. In that case, if you’re compelled to blow tent air into the same room where the tent is placed, I highly recommend investing in a portable air conditioner to re-cool the air before sucking it back into the tent through the bottom tent windows.

Does It Matter What Carbon Filter I Choose For My Grow Tent Fan?

When selecting a carbon filter for your grow tent fan, the one thing you want to be certain of is that the diameter of the connection point on the fan and the filter are the same. Make certain that your inline fan is equipped with a four inch carbon filter if your fan is four inches in diameter. Apart from that, there isn’t much of a difference between carbon filters; they’re simply large metal canisters that filter your air through charcoal to remove impurities and odors from it.

Do I Need an Oscillating Fan in Addition to my Inline Fan?

Even though the inline fan removes and replaces the air in your grow tent, it performs a poor job of circulating the air. As a result, you should think about including an oscillating fan in your grow tent to keep the air circulating and prevent mold and mildew spores from taking root. It will also aid in the distribution of fresh air for the benefit of the plants. There are little affordable oscillating fans that you can attach into the grow tent poles if you have a look at the fans I’ve listed below.

Which Grow Tent Fans I Recommend:

As long as you’re willing to purchase the ducts and hangers separately from the fans, AC Infinity offers fantastic grow tent fans. Purchasing the ducts and hangers is simple – simply match the duct diameter to the fan diameter. What is it about the AC Infinity fans that makes them so much superior than the competition? This fan is equipped with a programmable controller, which allows the fan to switch on in response to a range of different scenarios. For example, you may program the fan to turn on when the humidity reaches a given threshold.

  1. You may also set a timer and receive alarm notifications.
  2. When my AC Infinity T4 was running at maximum power, I was pleasantly pleased at how quiet it was.
  3. This results in the fan motors being loud.
  4. Quiet Inline Duct Fans With Temperature and Humidity Control – CLOUDLINE SERIES Them fans are priced similarly to other fans without the technological characteristics, therefore it makes financial sense to purchase one of these instead of another fan.

The fans are available in three sizes: 205cfm, 351cfm, and 750cfm (4-inch, 6-inch, and 8-inch). Click here to see whether they are available on Amazon.

VivoHome Inline Fan Kit

If you don’t want to go through the trouble of sourcing all of the components separately, this kit includes a fan, 8 feet of ducting, clamps, hangers, and a carbon filter. It is available in two different sizes to accommodate different grow tent sizes. With this kit, the main drawback is that the fan cannot be programmed to come on when particular conditions are fulfilled, such as a certain temperature or humidity. The fan has a simple on/off switch. Despite the fact that some customers have stated that they are content with the fan running all of the time.

Secret Jardin Clip On Monkey Fan for Grow Tents:

Secret Jardin created this 6-inch clip-on oscillating fan with a grow tent owner in mind when they created this product. The clip is designed to attach securely on the support poles of grow tents. The fan will ensure that your grow tent has adequate air circulation, which is necessary to avoid the growth of mold and powdery mildew. I’d recommend using one of these oscillating clip fans in conjunction with an inline fan in order to maintain the ideal growth environment in your grow tent.

Keeping Your Grow Tent Cool

When it comes to keeping your grow tent temps under control, you may want more than simply an inline fan. My best recommendation, without requiring you to read the entire post, is to consider purchasing a portable air conditioner for the room in which your tent is placed, or to consider adding CO2 to your growing environment, which allows you to grow a few degrees hotter than usual. See my whole post on decreasing grow tent temps for more information.

Ideal Grow Tent Temperature and Humidity for Growing Cannabis:

The optimal temperature for cannabis plants is between 70 and 80 degrees Fahrenheit (23 degrees Celsius). Consequently, consider yourself fortunate if you have a modest grow light in a small tent, or other circumstances that allow you to maintain those temps without using an inline fan. During the seedling and vegetative stages of the cannabis plant’s life cycle, 60 percent to 70 percent humidity is ideal. When cannabis plants are in the blooming stage, they grow best when the humidity is between 40 and 60 percent.

As your plants mature, they will begin to use a significant percentage of the CO2 that is available in your growing environment.

Other Resources for Growing Cannabis Indoors:

I developed numerous useful lists and tips to assist you in completing your home improvement project the right way, in addition to determining the proper fan size for your needs. The following are some other articles I strongly recommend: Choosing the Proper Size Grow Tent, This Year’s Best LED Grow Light List, and Understanding Grow Light PAR PPFD and Wattage, among others. Last but not least, don’t forget to check out myhome page for a comprehensive collection of useful resources.

Grow Tent FanCarbon Filter FAQ:

You’ll just need 30-45 minutes to complete this task.

What should I do if there isn’t a CFM output for my exact grow tent size?

The AC Infinity fans feature a number of different speed settings to choose from.

As a result, if you just want 100cfm, you may get the 205cfm (smallest model) and utilize the middle of the ten available speed settings.

If I’m buying parts separately, how do I know if they’ll all fit together?

The diameter of all of these components is the same. If you purchase a 6′′ fan, be sure you also purchase 6′′ ducting and a 6′′ filter to complete the installation. That’s all there is to it, really.

Do I need to hang the carbon filter?

The carbon filter should be placed at the top of your tent in order to capture the warmest air because it is where air will reach your fan from the outside. It would be inefficient to hang the filter low or to place it on the floor, for example.

Which end of the grow tent fan do I connect the carbon filter?

Connect the carbon filter to the “front” of the fan, which means that the fan is sucking air through the filter rather than expelling air through it, and that the fan is running continuously.

What size fan will fit in my grow tent?

Most grow tents accommodate 8-inch ducting, while some may only accommodate 6-inch ducting.

What if the size of my duct is too big for the duct hole on my grow tent?

If your grow tent outlet is 6 inches in diameter and your ducting is 8 inches in diameter, you’ll need to purchase a ducting reducer.

There’s too much negative pressure in my grow tent

Alternately, reduce the speed of your fan and, if possible, open up the passive air intake windows on the bottom of your tent even more, or consider installing an active air intake fan, which works in the same way as your other fan but is mounted on the bottom of your grow tent and pushes air into the growing chamber.

Can you wash or clean carbon filters after extended use?

It is possible to clean a carbon filter using compressed air. The filter may be used for up to one year before it has to be cleaned.

Can you place a carbon filter on each side of your fan?

Yes, although it may result in a slight reduction in the power efficiency of your fan. Check to see if your fan is strong enough to manage the additional carbon filter load.

Do all carbon filters come with pre-filter wrap for the exterior of the canister?

Pre-filter wrap is not included with all carbon filters; thus, if you want a pre-filter included, be sure to check the product page specifics before purchasing.

What’s the largest outer dimension of my carbon filter?

Pre-filter wrap is not included with all carbon filters; thus, if you want a pre-filter included, be sure to read the product page information carefully.

How long do carbon filters last?

Carbon filters are designed to endure for at least one year of continuous usage.

Do I need inline and oscillating fans in my grow tent?

Inline and oscillating fans serve various functions in the grow tent, so it’s a good idea to use both if you have the option.

How To Install Inline Fan In Grow Tent

Larger grow tents can also benefit from passive air intake, but they will necessitate the use of exhaust fans with greater CFM ratings. The intake of fresh air is simply one component of the indoor growth equation. Many parameters, including as the size of the grow tent, the number of grow lights, and the number of inline fans, influence the creation of the best growth environment.

How do you install an inline fan?

Placing the Inductor® In-Line Duct FanTM in the aperture and ensuring that the fan blade can freely rotate is critical. Align the arrow on the device so that it points in the direction of the airflow. Connect the spring through the central hole in the base plate, lengthen the spring, and bend it over the end for a secure fit in the base plate.

How long should a fan be on in a grow room?

You have the option of running your fans continuously or on an intermittent basis, such as every 15 minutes, for example. It is recommended that you keep the fan running if you tend to grow in a humid environment, and vice versa if you live in a dry region.

What size carbon filter for 3×3 grow tent?

As a result, a 4-inch carbon filter will effectively clean the air and absorb odors in this 3-foot-square tent with no effort.

A 6-inch filter, on the other hand, is preferable in this situation if you are employing high-pressure lighting.

What does an inline duct fan do?

Grow tents and rooms with inline duct fans are utilized largely for the purpose of removing heat and humidity from the environment. Closet systems that house servers and audiovisual equipment are additional examples of where they might be located. For the most part, they are intended for large-scale air conditioning and ventilation applications.

What size inline fan for 3×3 grow tent?

Member who is well-known. 6 inches is far too big for a 33. Every 2 minutes, you should take a deep breath and exhale. Calculate your cubic feet and divide the result by two to get the exact cubic feet per minute you want to be running at.

What is an inline exhaust fan?

As defined by the American Society of Mechanical Engineers, an inline exhaust fan is a fan that is installed inline (either within or linked to ducting) and that is used for extraction purposes. Rather of being installed directly on the plasterboard or ceiling, an inline fan is generally installed inside the attic or roofspace, a short distance away from the bathroom.

Can I vent grow tent into same room?

You may run ducting from the exhaust on your grow tent and direct the exhaust towards a different room or outside your home if you choose. Alternatively, you may just vent it into the same room in which the tent was placed. The second alternative is, without a doubt, the more straightforward. It also eliminates the most significant drawback of venting outside your home: the presence of a noticeable heat signature.

How do you set up a grow tent fan?

Here’s what you need to do (it’s simple): Install your grow tent, complete with a grow light inside. Install the exhaust fan at the very top of your tent, so that it is blowing air out of the tent. Make certain that there is an intake opening for fresh air to enter. Install a window fan that blows air out of the room where the tent is located.

Should I leave my fan on when lights are off?

During daylight hours, both exhaust and oscillation fans should be functioning, as they should always be. If you have 2-3 oscillating fans, one intake fan, and one exhaust fan, you should leave the oscillating fans running throughout the whole dark time. In addition, switch off the other fans one hour after the light is turned off.

Do Grow Tents need 2 fans?

Oscillating fans should be installed in the grow room. As you learn how to ventilate a grow room, bear in mind that your grow room ventilation system will require two different types of fans to function properly.

Can you have too much CFM in a grow tent?

Having an excessive amount of CFM flow in your tent is not necessarily an issue, unless you don’t have enough passive intake ports and the tent walls are bending in, in which case the fan will be put under undue stress. In such situation, you may also use active input fans to aid in the system’s overall balance.

What size exhaust fan for 5×5 grow tent?

Another 6 or 8-inch fan should be used for tent exhaust. This fan should be mounted again outside the tent, this time near to the outside air opening. If you are concerned about stinking air blowing outside the tent, you may hang the necessary charcoal filter inside the tent. This will prevent this from happening.

What size fan for 10×10 grow tent?

To determine the length, breadth, and height of the growing area, multiply the length, width, and height of the growing area.

It takes 512 cubic feet of space to fill a room that is 8 feet by 8 feet by 8 feet. If you have an indoor garden, your extraction fan should be able to exchange enough air to keep the environment healthy once every three minutes. As a result, 512 cubic feet / 3 minutes is 171 cubic feet per minute.

What size inline fan for 4×4 grow tent?

An inline grow tent fan (with a capacity of around 215cfm) would be sufficient for a 44 grow tent covering an area approximately 106 cubic feet.

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What size inline fan do I need?

Grow room capacity (cubic feet), carbon filter factor (+25 percent), insulation factor (20 percent), ducting (+10 percent for 10 feet) and light factor (+10 percent for 1000W) are all factors to consider when determining the size of your extractor fan for your grow room or tent. You’ll be given the fan size in cubic feet per minute (CFM).

Should I run my carbon filter 24 7?

During veg stage, you should run the inline fan continuously, but if you want to extend the life of your carbon filter, you shouldn’t have it connected at all during flower stage. Only when the buds begin to give off their aroma should it be connected during flower stage if you need it to mask the smell. During the growing process, mine are unhooked until I need to filter the smell.

What do I need for a 4×4 grow tent?

In this case, the total light power required for a 44 grow room is around 800-1200 watts. You may get it from a single 1000-watt bulb or from a number of 600-watt lamps. There are many growers who believe that one 600w light at a near height might be beneficial. However, unless you’re growing in a 3/4-inch pot, a 600-watt bulb will not enough (or smaller tent).

What size inline fan for 5×5 grow tent?

The best inline exhaust fan for a 55 grow tent is 6 inches in diameter and has a capacity of around 400 CFM.


Make your grow tent clean and odor-free by properly installing a carbon filter system and an inline fan system in your growing space. When growing plants inside, there may be a lot of undesirable scents and potential pollutant issues that can be harmful to both you and your plants’ health if not addressed. Installing a carbon filter and an inline fan system in your grow tent will help to alleviate both of these problems. Mold and mildew contamination concerns are often resolved by maintaining a proactive and clean garden, however not everyone is as conscientious as you may think.

  1. But how can you assure that it is correctly configured to clean the air in the manner in which it is intended to do so?
  2. I’ll go over the most prevalent layouts and explain why one is preferable to the other and why.
  3. Conduit should be run from the filter to the fan and then from the fan to the exterior of the tent.
  4. METHOD 2METHOD 2: INSTALL FILTER INSIDEFAN OUTSIDE GROW TENT METHOD 2METHOD 2: INSTALL FILTER INSIDEFAN OUTSIDE GROW TENT The filter should be attached to the inside of your tent near the exhaust vent, as specified in the instructions.
  5. Check to see that the fan is sucking air from the interior of the tent out to the outside.
  6. Install ducting from the fan to the exhaust port and then to the filter outside the tent to complete the installation.
  7. THE FOURTH METHODOLOGYMETHODOLOGY 4: INSTALL BOTH FANFILTER OUTSIDE THE GROW TENT Directions: Attach ducting to the top of your grow tent, near the exhaust port, and secure it in place.
  8. Attach the filter to the fan and check to see that the fan is sucking air from the interior of the tent out to the outside.
  9. While any of these configurations will produce the intended result, the first configuration is the most effective.
  10. For the second time, the majority of inline fans now on the market indicate in their user manuals that the air entering the fan must be filtered in order to avoid damage or increased wear and tear over time.

Your carbon filter and inline fan are now ready for installation! Make sure to check out my equipment recommendations page for the greatest grow goods available on the market today. Purchase everything you require now and begin developing right away! ​

How to Design a Complete Exhaust System for a Grow Tent

When it comes to tiny grow spaces, proper ventilation can make or break the experience. Cannabis plants, like all other plants, require fresh air and sufficient air circulation in order to grow and develop properly. Installing an exhaust system to remove old, stale air and excess heat from your cannabis plants and replace it with fresh, cold air may significantly enhance the health of your plants, resulting in larger, more productive harvests. It is possible that the incorrectly designed fan and exhaust system will considerably reduce the potential and cause system inefficiencies.

As we will see, fan size isn’t only about the number of cubic feet per minute that can be moved (CFM).

Depending on the type of light you use, the pace at which CO2 is supplemented, and even where you reside, the system needs might fluctuate.

Why Fans and Exhaust Are So Important In Your Grow Room

The quality of the air you breathe may make or break your yield. So much so that it represents a significant financial burden for commercial growers in terms of both the original equipment investment and recurring energy expenses. However, just because the requirements for a smaller grow tent are less expensive does not mean that a small-time farmer should disregard or under ventilate their crop in order to save money. Mold, fungus, and typical interior pests may all be mitigated by increasing air circulation in the home or office.

  • This is the mechanism through which the leaves expel excess moisture from cells situated on the surface of the leaf.
  • The removal of this moist, stale air aids in the improvement of plant development as well as the reduction of the danger of disease and pest infestation.
  • Wind offers this service for free in nature, organically strengthening the plants through light resistance training while also providing a natural source of oxygen.
  • Plants that are happy require plenty of fresh air and consistently mild temperatures to grow.
  • In the event that you have accidently overwatered your plants, a fan with humidity and temperature controls will automatically activate depending on pre-programmed programming.

In a short period of time, your prior overwatering problem will be resolved and everything will be back to normal.

Putting Together a Complete Ventilation and Exhaust System

There are a zillion different ways to set up ventilation in a grow room, but they all rely on the same basic components, which are installed in the same sequence. When it comes to small-scale operations, fewer parts are required, but the addition of carbon filters and grow room monitors becomes increasingly vital as the number of plants engaged increases. Most grow tents these days are pre-assembled with a complete exhaust system in mind, which is a big help. From intake to exhaust, these are the important components that you can expect to find in the majority of grow tents, listed in the sequence of intake to exhaust.

  1. These are installed on the intake line to filter out any potentially harmful impurities before they enter the enclosed grow chamber.
  2. Along the bottom of the compartment, there are most likely passive air intake holes (filtered or unfiltered) to be found.
  3. Although ducting is a fundamental component of an exhaust system, it is worth addressing.
  4. The greater the length of the ducting, the greater the amount of effort the fans must perform to move the air.
  5. In order to make a 90-degree turn, more force is required than for a 45-degree turn.
  6. One of the most important components of a ventilation system is the interior fans, which are responsible for gently circulating air throughout the grow tent.
  7. Circulation fans are nothing special; they are simply the types of fans that you would use to cool off your kitchen or bedroom.
  8. In most cases, it is responsible for most of the air flow throughout the room.
  9. Inline fans are often better at drawing air than they are at pushing air, which is why they are put towards the end of the line (before a carbon filter if you are including one).
  10. Most light fixtures (even LED choices) generate a large amount of heat for the tiny amount of area they occupy, and this heat must be dissipated by proper ventilation.
  11. Lung rooms are a fantastic answer for this, and the simplest example of one would be a grow tent placed inside a bedroom to accommodate the growing process.

Put a cloth beneath the door and close the window/room as much as you can, and you’ll be OK.

Most producers no longer have to worry about the legal ramifications of a stench-filled grow room, but the strong odour emanating from even a little harvest isn’t always pleasant. Carbon filters are installed at the exhaust end of the system in order to remove the strong cannabis fragrance from the air before it is released into the environment. These devices can help eliminate any residual effects of foliar sprays, herbicides, or other undesirable substances from the air. Carbon filters, such as the AC Infinityseries, are available in a variety of duct diameters ranging from 4″ to 10″, with a number of quiet alternatives.

How to Calculate CFM For Your Grow Tent

When it comes to establishing the proper exhaust and ventilation within your grow tent, you may have observed that there are many different formulas (and views) available online. Following ten years of experience and our own study, we strive for an air exchange rate (also known as a scrub) of once per minute. As you’ll see in the following section, calculating once each minute simplifies the calculation. It is necessary to calculate the cubic feet per minute (CFM), or cubic feet per second, in order to determine the optimum fan size and exhaust needs.

You may use the same recipe for a large room or for a little grow tent; the results will be the same regardless of the size.

Although the CFM calculation is straightforward in and of itself, there are always extra things to consider in a grow room, which will almost certainly raise the size of the fan that is needed.

Never overlook the importance of taking into account the influence of grow lights on your grow room setup!

Happy Hydro’s Simple CFM Calculation

1. Take measurements for the space’s width, length, and height. To find out how many cubic feet there are, multiply the numbers together. Additional elements such as high-intensity discharge (HID) lighting (5 percent per air-cooled lamp, 10 percent for non-air-cooled), CO2 supplement (5 percent), hot climates (ranging from 25 to 40% depending on humidity), and/or carbon filters should be considered as well (20 percent). These are only educated guesses, but they will aid in the adjustment of the final figure for a more accurate reading.

  • The following examples illustrate this point: 112 base CFM plus two HID lights (10 percent) equals 123.2 CFM
  • 112 base CFM with two HID lights and a carbon filter (30 percent) equals 145.6 FM

In order to achieve this final CFM rating, install an inline exhaust fan and ducting of the required size.

  • Because it is rated at 210 CFM, both the 123.2 and 145.6 CFM rated grow tents in the preceding example would function with a 4″ Cloudline T4 Inline Duct Fan System With Temperature and Humidity Controller.

Choosing the Right Size Inline Exhaust Fan for a Grow Space

Before selecting an inline exhaust fan, you’ll want to take into account the following extra specifications:

  • CFM, duct size, noise, speed controller, and carbon filter rating (if applicable) are all important considerations.

As soon as you’ve calculated the predicted CFM, taking into consideration all influencing elements such as the ventilation system and the outside environment, round up and seek for solutions that fall inside that range. Inline fans are first and foremost classified in terms of cubic feet per minute (CFM), and it should be simple to distinguish between those rated above and below your grow tent objective. For example, theCloudline S4 has a capacity of 205 CFM, but theCloudline S10 has a capacity of 1011.

The CFM has an impact on the duct size. The more the CFM, the greater the size of the duct required. Each inline exhaust fan makes use of a certain duct size (from 4″ to 10″ and beyond). As a general rule of thumb, consider the following:

  • 4ft x 4ft = 4″ Duct Size
  • 5ft x 5ft (or 4ft x 8ft) = 6″ Duct Size
  • More than 4ft x 8ft = 8″ or bigger
  • 4ft x 4ft = 4″ Duct Size
  • 4ft x 8ft = 4″ Duct Size
  • 4ft x 8

While noise will have no effect on the efficiency or performance of your exhaust system, it may be crucial depending on where you choose to install the grow tent in your house or in your garage. Indoor growth is more noisier than some people anticipate, owing in large part to the requirement for a complete ventilation system. If noise reduction is a concern, look for fans that have silencer components, such as the AC Infinity Duct Fan Silencerseries. Invest in a fan that has a controller, like as theCloudline T6 with Temperature and Humidity Controller, to give you a little more control and flexibility in your grow area.

It is usually preferable to purchase a slightly larger fan with a speed controller than you will really require for the system.

The last thing to consider is whether or not your fan is compatible with a carbon filter if you are utilizing one.

Always pick an inline exhaust fan with a lower CFM rating than the filter it will be connected to.

Grow Room Fans and Exhaust Should Never Be an Afterthought

We may forgive inexperienced growers if they add an inline exhaust fan and ducting to their basic arrangement as a last-minute consideration. However, today’s commercially available grow tents, like as the Gorilla Tents, all include the essential openings to accommodate a complete exhaust system. Installation and set up are significantly less difficult because the structure has already been constructed. When you take the effort to calculate CFM and install an appropriately sized fan, filtration, and ducting, you will see an instant return on your investment when harvest time comes around.

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