What To Do If You Cant Exaust Hot Air From Grow Tent To Outdoors

7 Tips for Venting Grow Tent Into Same Room

When growing inside, venting your grow tent outside is a common (and anticipated) occurrence. However, there are situations when there is no choice but to vent the grow tent into the same room. And that has the potential to result in a large number of casualties. What are the names of these casualties? Is there a way to have things resolved and keep the ball going in the right direction? If any of these questions are springing up in your head right now, you’ve arrived to the ideal location to get the answers.

Now, let’s take a break from whatever it is you’re doing and go deep into the subject-

Venting Into Same Room: How Would It Look Like?

A grow system is equipped with intake and exhaust vents, which allow it to draw in new air while also releasing used or heated air into the surrounding environment. Consequently, exhaust air should not be allowed to accumulate around the tent, as doing so will prevent fresh air from entering the tent. Additionally, a source of fresh, cold air should be available on the other side of the room. Now, the significant difficulty is that if your system is contained within a room, it will be difficult to achieve all of these requirements.

Here are some examples.

  1. Imagine that you’re trapped within a chamber with no windows or openings in the walls. Because there is no readily accessible source of fresh air for the grow system, the system must rely on a generator. The fact that there is no way to drill through the walls or ceiling makes the issue considerably worse. It is possible that your window or door will need to be locked for reasons of security or privacy.

Consider the fact that if you do not resolve all of these concerns, your entire grow system may come to a complete and total collapse.

What’s The1 Problem?

As you can see, your plants are already enclosed in a protective habitat. As a result, you must ensure that they have access to sufficient fresh air that has the appropriate levels of CO2 (for breathing in) and moisture (for transpiring out), as well as the appropriate temperature (to strengthen stems). The fact that you have to handle it all from the confines of that same, closed space appears to be the biggest concern. It is necessary to exhaust and intake air to ensure appropriate air circulation throughout the tent in order for it to function properly.

Aside from this, there are a number of additional obstacles that may arise along your path.

  1. The accumulation of odors across the area
  2. The accumulation of heat throughout the room The presence of moisture and mold growth on the walls
  3. The air around the tent is too humid to allow the plants to transpire

7 Must-to-follow Tips for A Healthy In-room Venting

The accumulation of odors across the area; the accumulation of heat throughout the room. Mold growth on the walls as a result of excessive moisture. A lack of oxygen in the air around the tent because to excessive humidity.

Tip 1 of 7: Make Sure the Room is Large Enough

As long as you’re venting inside the same area, there should be plenty of space for you to move around. Because there will constantly be hot and humid air in the room, this is a good thing. If the space is large enough, this heated air can always be isolated from the cool(relatively) air that can be found at the foot of the staircase. Now, how much space do you think it should have? There isn’t a straightforward solution to this question. Although we recommend at least 150-200 square feet of room area for a grow system with a 55 base area, we can accommodate larger systems.

They used to be significantly larger than any of the rooms in your apartment.

However, how do you ventilate a grow room in an apartment? That is conceivable if you have a modest grow system that is primarily comprised of single plants. Making a modest grow tent in a closet or a bedroom might suffice for now.

Tip 2 of 7: Find the Best Passive VentingOption

There is absolutely no way that your grow tent would be able to pull in fresh air if it did not have any sort of passive exhaust system in place. Because you are unable to guide the exhaust air outdoors, you must find a way to do it in an indirect manner. Here are a few alternatives to consider:

Vent Grow Tent Out Window

The most effective method of releasing used air is through a window. However, in the majority of circumstances, you will not have this choice. Reasons? You might want to keep your hidden pastime a secret from your neighbors, for obvious reasons. Alternatively, you could not have any windows at all, which is especially true if you’re working in the basement. However, if you’re fortunate enough to have a window, you may run ducting from the grow tent exhaust to the window to help with the ventilation.

Duct out to A Different Room

In the event that you do not have a window, the next best choice is to exhaust the air through another room. It may be the room next to it, or it could even be the bathroom next door. In either situation, you’ll need to construct a ducting system to connect the tent exhaust to the opposite door or room. Thus, there will be a large reduction in the amount of air that flows through the duct. In order to overcome this difficulty, install a fan at the far end of the vent that is at least 1.5 times as strong as the tent’s exhaust fan.

Try Venting Grow Tent into Attic/Chimney

Many farmers believe it to be a viable choice for venting their plants. However, there is a possibility that some significant complications will arise. First and foremost, there’s the odor to contend with. Because the air will be forced to flow through the whole roof, the foul odor will be able to bother everyone in the residence. Solution: Using a decent carbon filter at the beginning and end of the grow tent exhaust is a simple and effective way to solve the problem quickly and effectively.

Due to the fact that the attic exhausts air from the whole home (including the kitchen), there is always some heat in there.

Alternatively, you may divert the issue to a vent that exits your attic to resolve the problem completely.

Tip 3 of 7: Keep the Exhaust-Intake Holes At Opposite Positions

No matter how hard you try, some warm air from the exhaust system will remain in the room despite your efforts to eliminate it. You may avoid having your plants breathe it over and over again by using a simple workaround. As you are aware, warm air is more likely to be found in the top portion of the room due to the high light density in the upper section of the room. As a result, the air at the ground level will be significantly colder. As a result, be certain that your exhaust system is located at the very top of your tent.

Furthermore, the intake hole is located at the bottom of the tent. Fortunately, the majority of high-quality tents are designed with this precise configuration in mind. In the event that yours does not, be sure to patch up the holes on your own time.

Tip 4 of 7: Use An AC Unit for the Room

Many of your troubles will be resolved if you install an air conditioning unit in the room where your grow tent is located. In these instances, a mini-split air conditioner is suggested over a window air conditioner or a split air conditioner. Here are some of the advantages of having a high-quality micro split air conditioner in your room:

It’ll Keep The Temperature Down

Consider the fact that temperature build-up is one of the difficulties associated with venting inside the same room. An air conditioning unit, on the other hand, may be able to help in this situation.

It can Dehumidify Your Room(for A Price)

In air conditioning equipment, there is a section where condensation forms on a coil when the system is being operated. As a result, it will draw moisture from the air and channel it into a drainage system. You must, however, maintain a close check on the air to ensure that it does not get excessively dry.

It Keeps Supplying New Air

Although air conditioners are unable to remove stale air, they may certainly bring in fresh air. And that’s a nice bonus when you’re having trouble venting the tent when you’re in the same room with it. If you are unable to bring in fresh, new air from other locations, the air conditioner can help you address the situation.

Tip 5 of 7: Don’t Rely on Passive Venting

You would believe that simply opening the door would be sufficient to remove the exhaust air from the room. This is not always the case. However, that was a pure coincidence! As a result of the high temperature of the exhaust air, they are more likely to become attached to the ceiling of the room. It will completely derail your entire strategy unless and until you have an active exhaust system for the grow tent ventilation system in place to drain them out completely. It is sufficient to run ducting till the window or door, attic, or chimney, and then direct the exhaust air out through these openings.

Tip 6 of 7: Use A Premium Carbon Filter

We are all aware of the need of a carbon filter in a growing system. However, when you’re venting into the same room as the source of the problem, the need of these filters increases even more. This is due to the fact that coal dust may be recirculated around the grow area/room in such circumstances, which is detrimental to both the air and the plants. Spend a little more money on a carbon filter of superior quality. Investigate and discover filters that include Australian activated coal by conducting a little study.

Tip 7 of 7: Set the System Right for the Light/Dark Cycles

The likelihood of plants transpiring increases when there is darkness. Moreover, they carry out photosynthesis during the light-dark cycle. Additionally, while the lights are on, the building of heat is more frequent. Furthermore, when the dark cycle is activated, the accumulation of humidity is more regular. This means that understanding what your air circulation/temperature/humidity should be throughout these two periods is critical.

Because the intake air is coming from the same room as the exhaust air, you should keep these considerations in mind. Also, be sure to circulate the air using inline ventilation fans on a regular basis and according to a schedule.

Possible Issues and Remedies

Even if you’ve been successful in restoring stability to the entire system, there are still a few things that you need to keep an eye on. Here is a list of potential problems and their solutions:

CO2 Filter Not Working

It is possible that the carbon filter is not actively operating at all times. This means that the exhaust air will not be completely devoid of odors. The causes for this might be one of two types:

  1. The activated carbon has reached saturation. Despite the fact that the activated carbon is not saturated, it is unable to function.


When it comes to the first scenario, there is no other option except changing the carbon filter or fabricating a new carbon filter. Before you do that, you need find out how long your carbon filter will last you. In the second scenario, it’s possible that the humidity in the air was the one who shut off the carbons’ ability to conduct electricity. Dehumidifiers placed inside the tent would be the best solution in those situations.

Mold Buildup on Wall

When it comes to the first scenario, there is no other option except to replace the carbon filter or create a new carbon filter. Before you do that, you need find out how long your carbon filter will be effective for. Alternatively, it is possible that the carbons’ activeness has been reduced as a result of high humidity levels. Dehumidifiers placed inside the tent would be effective in such situations.


There is no other option other than to separate the wall from the damp air. You might try utilizing a whole-house dehumidifier to ensure that the air is sufficiently dry. Additionally, some air conditioners are equipped with a built-in dehumidifier, which may be beneficial. Whether you are venting via those small holes in the wall, you should check to see if this is the case. Because the purpose of these holes is to preserve the wall cavities rather than to exhaust moist air from within the room.

Imbalanced Cooling/Heating

When you’re utilizing a mini-split air conditioner to cool down the room where the tent is placed, the cooling should be adjusted to match the amount of heat that is emitted by the tent. Otherwise, an uneven heating-cooling ratio will result in an air system that is either excessively humid or too dry.


To determine the heat, you may take the temperature inside the tent and reduce it by 5-6 degrees Celsius to the temperature outside the tent. It will ensure that the supply of cold air is maintained. Another point to remember is that wattage is the same whether the light is LED or HPS. As long as the wattage is the same, both LEDs and high-pressure sodium lamps (HPS) will generate the same amount of heat.

Quick Grow Tent Ventilation Tips Before We Finish

  • Keep a close watch out for any changes in temperature. The use of inexpensive thermometers will suffice
  • In the event that you are successful in connecting the room to central heat and air conditioning, this will alleviate a great deal of your concerns. For as long as you are able, keep the doors and windows (if any) open. Do not use the little vents on the wall of the room to vent your air. Mold can accumulate in the wall cavities if they are not installed properly. During the summer, pay more attention to the overall condition of the ventilation system. Summer, in comparison to winter, provides higher temperatures and higher humidity to any air conditioning system.

You’re still here, aren’t you? I haven’t finished yet. Look over here for the whole grow system setup for a sealed grow room- I’m Saleh, and I’m a blogger that enjoys doing home improvement projects on the side. Whatforme.com is my tiny corner of the internet where I can communicate what I’ve learnt first-hand, particularly in the field of home repair. The most recent posts by smsaleh (see all)

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4 Expert Tips for Venting Grow Tent Into Same Room

Because I am an Amazon Associate, I receive money when people make eligible purchases. You will not be charged any additional fees! Any plant will grow in the presence of fresh air and breeze, which is something that occurs naturally in the wild. When you cultivate your plants indoors, you must provide the right climate for them. It is not something that happens automatically. The air circulation in your home may be controlled with the help of exhaust and venting systems. When venting your grow tent, you have the option of venting it outside or in the same room where your grow tents have been put.

In this post, we’ll provide you some pointers on how to get ideal and healthy in-room ventilation.

During the same session, we’ll go over all you need to know about ventilation for your grow tent. But first, let’s take a look at why it’s crucial to have proper air circulation in your grow tent in the first place.

Benefits of Good Air Circulation In Your Grow Tent

A grow tent or chamber is a closed environment that does not allow for the passage of wind to occur. Plants may suffer from a lack of air circulation if they are not provided with enough ventilation. Your plants will not grow and flourish in the same way as plants planted in an open environment with a constant flow of fresh air would grow and thrive. Ventilating your grow room ensures that the plant grows in the greatest possible atmosphere. It provides the wind and air that the plant need for a variety of purposes.

  • Using this product, your plants will be protected against bud rot, mould, and white powdery mildew. Pests such as spider mites and fungus gnats are less likely to appear. Aids in the regulation of humidity and heat in your grow space
  • Plants have robust stems as a result of the swaying and bending that occurs naturally in the environment

Preventing bud rot, mould and white Powdery Mildew

This occurs when air passes through the leaves of a plant and removes the moisture that has been produced by the plant during transpiration. Increased water and nutrient absorption by the plant is enabled as a result of this. The removal of moisture from a plant by air blowing reduces the likelihood of the plant decaying or developing mould on it. Pests are being reduced. Pests such as spider mites and gnats are unable to grow in a windy environment. They are readily blown away by the air. They prefer to live in dry soils where there is no wind blowing through them.

Controlling the Humidity and Temperature Air circulation aids in the uniform distribution of heat and water vapour throughout the growth region.

Strengthening of the stem An effervescent breeze sways and wiggles the branches of your plant, just like in the wild.

When the plant begins to blossom and put more weight on its leaves, the strength of the branches becomes increasingly important.

4 Expert Tips for Venting Grow Tent Into Same Room

When you vent your grow tent in the same room as your grow room, the following suggestions will help you get the most out of your investment.

1. Place Your Grow Tent in A Large Room

If you want to vent your grow tent into the same room, be sure the area is large enough to accommodate the humid and hot air that will be coming from your growing environment. It will be difficult to tell the difference when venting in a large space. The air that has been removed from your grow tent will naturally depart from your room. When you open the windows, the fog will simply dissipate. The room becomes stuffy if you vent a grow room into a compact space, on the other hand. In the majority of circumstances, choose a space that is not currently in use.

2. Air Condition Your Room

onehourairftworth.com is the source of this information. The most important rule for in-room venting is to make certain that the air in the room is properly condition. If you do not condition the air, you will be forced to vent from the grow tent, where the same air will find its way back into the grow tent. Another disadvantage of not air conditioning your room is that it becomes unbearably hot and stuffy. The humidity in the room will also increase, which will lead to the growth of problems such as mould and fungi.

You will also make certain that the room has plenty of fresh air, which will be beneficial to the grow room.

However, you should place it in the room where you will be venting your air.

The Lasko 1827 ElegancePerformance Adjustable Pedestal Fan measures 18 inches in height.

The three quiet speeds provide a refreshing breeze to circulate throughout your home and office. You have complete control over the fan speed, allowing you to enjoy a comfortable freeze at any time. The Most Important Characteristics

  • It is ultra-silent, has an adjustable height, and has three quiet, energy-efficient settings. It also has widespread oscillation.

The fan may be purchased at Amazon. Click here to find out the most recent pricing and to purchase it right now. Pedestal Fan from COSTWAY The Costway pedestal fan is one of the quietest and most silent fans you will find on the market, and it is also quite affordable. This device offers a wide-angle oscillation function for more efficient air delivery. It has a horizontal swing that is 90 degrees. You will enjoy a refreshing breeze in every room of your home when you use it. The oscillation is consistent on both sides of the fan’s movement.

The Most Important Characteristics

  • Quiet pedestal fan
  • Long-lasting fan blade cover
  • Wide area oscillation
  • Height that may be adjusted

To find out the most recent pricing and to purchase the fan on Amazon, click here. 16-inch Double-Blade Pedestal Fan by Honeywell A forceful cooling wind is provided by the Honeywell twin blade pedestal fan. Because of the twin blade design, the airflow is maximized and optimized to the greatest extent possible. If you get this fan, you will appreciate how convenient it is. This unit is equipped with an LED control panel that will allow you to pick a specific performance function of your choosing.

The Most Important Characteristics

  • Airflow that is quiet
  • Auto-off timer that runs from 1 to 8 hours
  • Airflow control with three different speeds
  • Grille that may be removed for easier cleaning

The good news is that the fan is currently available for purchase on Amazon. Now is a good time to get it from Amazon.

3. Buy and Install A Premium Carbon Filter

Your grow tent will be releasing toxic fumes and a foul odor. If there are people in the room, you can’t afford to have polluted air blown into it. As a result, clean the air before it is discharged into the room for improved performance. And it is at this point that the premium carbon filter comes into play. A carbon filter is made out of activated carbon that is placed in a tube. In layman’s terms, a carbon filter is a device that removes pollutants and contaminants from the air by utilizing activated carbons.

  • To be able to accomplish this, the carbon offers a wide surface area that facilitates chemical interaction between the molecules.
  • Every particle of carbon in the filter has a wide surface area, which helps to keep the filter clean.
  • Get a carbon filter that is compatible with the size of your exhaust system, since this is the most crucial thing you can do.
  • These exhaust filters are available on the market in the following diametrical sizes: The smallest diameter carbon filters are those with a diameter of four inches or less.
  • Specifically designed for tiny tents (44 or 47 or 48 tents), these filters provide excellent performance.
  • Carbon filters with a 6 inch diameter offer a 400 CFM flow rate.
  • Phresh Filter 701005 Filter is available for purchase in this category.

Click here to find out the most recent pricing and to purchase it right now.

They may produce up to 700 cubic feet per minute (CFM).

The VIVOSUN 8 Inch Air Carbon Filter is the greatest 8-inch carbon filter available on the market.

To find out the most recent pricing and to purchase the fan from Amazon, please visit this page.

In the Carbon filter, the best filter is the Phresh Filter 10 in x 24 in.

Click here to get the most recent pricing and to purchase it right away.

It has an extraction rate of up to 1400 CFM and can handle a wide range of applications.

x 24 in. carbon filter is our top selection in this category. It’s available for purchase on Amazon. To check the most recent pricing and purchase the filter from Amazon, please visit this page. You can find out more about carbon filters by reading our guide on How Carbon Filters Work.

4. Buy and Install Effective Grow Room Fans

With excellent grow room fans, you can be confident that all of the air and humidity from your grow tent is vented. Your grow tent’s fans should have the power and ability to exhaust the large quantities of air that will be present in it. If you get a smaller fan, it will not be able to exhaust enough air from your grow tent. Furthermore, if the fan is much larger than the amount of air flowing through your plant, the branches may be broken. The objective is to become more effective by growing a tent fan.

  1. A decent fan will have a number of different speeds.
  2. It is at the top of our list because of its high performance, power, and silent operation.
  3. Even when the fan is operating at its maximum power, it remains exceptionally silent.
  4. At maximum speed, the fan produces noises of 32dBA while it is operating at maximum capacity.
  5. When the fan is operating, you will scarcely be able to tell that it is there.
  6. The fan has eight various speeds and three different power levels, which makes it easy to manage the airflow and make it more comfortable to use.
  7. The fan makes use of a dual hydrodynamic and a stator blade configuration.
  8. It produces 351 cubic feet per minute of airflow.
  • Ideal for a medium-sized room in terms of strength
  • For more efficient power use, use the variable setting. Extremely peaceful

The fan may be purchased at Amazon. Click here to find out the most recent pricing and to purchase it right now.

Parting Shot

Venting your grow tent in the same room as your growing environment might result in odors and heat accumulation. Other factors to consider are moisture, mould accumulation, and humidity issues in the area where you are venting your tent, among other things. This is especially true if the venting is carried out incorrectly. Simple techniques may be applied to your venting system, and you will be able to live in peace with your grow tent if you follow these guidelines. In order to grow marijuana successfully, you must take steps such as conditioning your room’s climate, purchasing a carbon filter for your tent, and purchasing good grow fans.

Make certain that the size and quality are appropriate. By purchasing any of the venting appliances outlined in this article, you will be able to get the greatest results possible when you vent a grow tent in your home.

Quick Answer: What To Do If You Cant Exaust Hot Air From Grow Tent To Outdoors

Make certain that your ducting is the appropriate size for your grow tent. In order to exhaust hot air from the grow tent, ducting from the outside will need to be connected to a vent or window. It is also critical to ensure adequate ventilation within the grow tent. An oscillating fan or a set of clip-on fans are all that’s required to generate a gentle artificial wind.

Should you vent grow tent outside?

Make certain that your ducting is the same size as your grow tent. a. To exhaust the hot air from the grow tent, ducting will need to be run outside and connected to a vent or window. It is also critical to ensure adequate ventilation within the grow tent. If you want to produce a modest artificial wind, clip-on fans or an oscillating fan would suffice.

How do you vent a grow tent outside?

Make certain that your ducting is the same size as your grow tent. In order to exhaust hot air from the grow tent, ducting from the outside will need to be connected to a vent or window on the inside. It is also critical to ensure adequate ventilation within the grow tent. An oscillating fan or a set of clip-on fans are all that’s required to generate a gentle artificial wind.

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.

Can you leave your grow tent open?

Yes, theoretically, you are allowed to keep it open. It is my goal to be able to control as many factors as possible, and growing under a tent allows me to do this. You’re exposing your plants to everyone and everything in the room as a result of this.

Do I need air intake in my 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.

Does a sealed grow room need fresh air?

There is no air removed from or pulled into the grow-space from outside the enclosed grow-space. Instead, a heater and an air-conditioning unit work together to keep the temperature in the proper range at all times. The usage of dehumidifiers and humidifiers can help to regulate the humidity in a room.

What happens if grow room is too hot?

A poorly ventilated grow room can cause a variety of other issues with your plants in addition to overheating. In the first place, increased water transpiration at high temperatures can lead to nutritional decomposition. Terpenes can also be lost from your plants if they are overheated, resulting in the loss of the distinctive flavors and fragrances from your strains.

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What size light for 5×5 grow tent?

For a 5×5 tent, it is advisable to use lights that are around 1000 watts (High-Pressure Sodium).

Although HPS lights appear to be yellow in hue, they actually contain color spectrums that are yellow and red. Plants that bloom well in both spectrums are encouraged to do so.

Can you have too much airflow in 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.

How hot should my grow tent be?

Under ideal conditions, the temperature of a conventional, well-ventilated grow room should be kept between 75 and 85 degrees Fahrenheit. The temperature may be adjusted or reduced depending on the demands of your plants.

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

It is recommended that your grow room’s extractor fan system replenish the air in your grow room once per minute, or at the very least every three to five minutes.

How hot is too hot for a grow tent?

It’s important to remember that the maximum temperature for successful marijuana grow tent operation is 85°F if you’re growing marijuana in a grow room. Temperatures that are greater than this will cause the plant to succumb to death.

How hot can my grow tent get?

In order to ensure proper growth, the temperature in the grow tent should not exceed 31°C (highest temperature) and should not be below 17°C (lowest temperature), while the optimal temperature range is between 20 and 28 degrees Celsius. The relative humidity should not be higher than 75 percent (at the most) or lower than 20 percent (at the lowest) (minimum). The optimal humidity is between 40 and 60 percent relative humidity.

Is 32 degrees too hot for Grow Tent?

Moderator. Anything beyond 30 degrees Celsius/86 degrees Fahrenheit should be avoided at all costs. Because of the high temperatures, the plants become stretched and their buds become smaller and more airy. There are some strains that will fare better in hot temperatures than others.

How can I cool down my grow tent?

How To Keep A Grow Tent Cool Switch to LED grow lights to save money. Ballasts and drivers should be placed outside the grow tent. Air should be circulated in and out of the tent. In the grow tent, keep an oscillating fan running. Incorporate a Swamp Cooler into your tent. Install a portable air conditioner in the tent. Turn on the lights at night. Relocate the grow to the basement or cellars.

Is 85 too hot for a grow room?

It is recommended that plants grow in grow rooms between the temperatures of 68 degrees and 82 degrees Fahrenheit, depending on their stage of development. However, if you keep your plants at 85 degrees Fahrenheit for an extended period of time, they will begin to experience a variety of problems.

How much does a 1000 watt LED yield?

The average output with a single 1000-watt light is around 2 pounds every harvest. Sometimes I weigh less than 1.5 pounds, and other times I weigh more than 2.25 pounds.

Is 30 Degrees to hot for grow room?

Temperatures in the 70-85 degree Fahrenheit (20-30 degree Celsius) range are often preferred by cannabis plants throughout the daytime while lights are on. When the lights are turned off (or when it is night), cannabis plants thrive in somewhat colder temperatures.

What size grow tent do I need for 4 plants?

A rectangular tent shape is the most effective for four plants, and the most typical size is a 44.

This provides each plant with around 4 square feet of growth room (or a 22 of the total area). It is really a little less than that, because you want to leave some space between the plants to allow for air circulation. However, this still allows for quite big plants.

What size LED light do I need for a 4×4 grow tent?

For the reason why LED lights are typically recommended for grow tents, we will only cover the finest LED grow lights available on the market for your tent. To light a 44 tent, a grow lamp with an actual wattage range of 500-600 watts should be used (assuming blooming plants that demand a lot of light and are collected in a single location).

Can I leave my fan on 24 7?

Reduced frequency of fan starts and stops can assist to lessen the stress associated with starting, and may even help to increase the fan’s lifespan. Leaving the fan running all of the time guarantees that the air is cleaner since it is being drawn through the filter or UV light system. This may be preferable for persons who suffer from allergies.

7 Tips for Venting Grow Tent Into Same Room

We have the backing of our readers. If you make a purchase after clicking on one of our affiliate links, we may receive a commission. If you are growing your plants indoors, then indoor venting is merely the anticipated and normal course of events. However, there are situations when you may have no other options for venting the grow tent that is currently present in the room. However, you will want to consider whether or not there are any possibilities for vent expanding into the exact same room.

Are you interested in knowing what they are?

As a result, continue reading to learn about the 7 strategies for same room vent growth, as well as the troubles that they would resolve.

What are common issues with the same room vent growing?

Know that a growing system is simply one that has both exhaust and intake ports, which allows it to both feed new air into the environment and exhaust the heated air or exhaust that results from the process. As a result, the heated exhaust air is prevented from accumulating all around your tent, and the fresh new air is prevented from entering. As a result, you must continue to provide the tent with fresh, chilly air. However, there is a problem, and that problem is that it is difficult to achieve all of the above requirements if your entire system is contained within a single room.

  • Without doing so, you will find yourself in a situation where drilling through your walls is not an option for you.
  • But that’s not all there is to it.
  • It’s also probable that you’ll have to deal with mildew and wetness on your walls as a result of this situation.
  • As a result, it is imperative that a solution be found.

What is the main issue that we need to be targeting in all our solutions?

Before we can go on to finding a solution, we must first identify the one key issue that we should be focusing on, which is providing your plants with a continuous fresh air supply so that they can receive a continuous fresh air supply that is rich in CO2. However, this isn’t enough in and of itself. You must also make certain that the air is at the proper temperature and has the appropriate amount of moisture. It’s also worth mentioning that you’ll have to deal with the issue of appropriate air circulation throughout the entire grow tentas as well.

It should be noted that this encompasses both the intake and the exhaust. As a result, you must exhaust all of the completely vented air while still maintaining a continuous flow of fresh air.

7 tried-and-tested tips for same room venting

Note that if you don’t have any type of exhaust system, not even a passive one, your tent will not be able to obtain any fresh air since it will not be able to breathe. However, there are still choices that you will be able to investigate more. You can, for example, open a window to let the humid and hot air out and cool off. However, if you are growing in your basement, it is possible that there are no windows available. If you do have a window, though, you need construct a tunnel leading from the tent to the window.

2. Create a duct to another room

A great probability exists that if you cultivate plants in your basement, there will be no windows in the space. However, you must still ventilate your space to get rid of the heated air that has accumulated. Obtain a duct that leads to another room that has an open window in order to do this. This may now serve as your bathroom, as well. All that is required is the presence of a window. A fan should be put at the very end of your ductwork once it has been installed once it has been completed.

You must do this because you will notice a significant decrease in the continuous airflow that is occurring through the air duct system.

3. Vent in a large room

If you intend to vent inside the same room, you will need to make sure that there is plenty of space available. This is due to the fact that hot air will constantly accumulate in that area. Consequently, if the room is large enough, there will be enough space for this humid and hot air to at the very least be isolated from the comparatively chilly air present at the bottom of the room. But the question is, how much space do you require for your room to function properly? There isn’t a single, straightforward solution to this problem.

The basement room is the finest alternative if you’re considering which room to employ for this function.

You will, however, require a tiny system with a single or a single plant in order to accomplish this.

To do this, you can make use of whatever type of inexpensive thermometer you like.

4. Vent into your chimney

Many people choose to vent up a chimney or even an attic as an alternative. However, you must be aware of the fact that there will be a scent if you choose to go this route. After all, because the air will be going throughout your whole ceiling, the foul stench that will emanate from there will be able to offend virtually everyone who is there in your home. Not to mention the possibility of mold growing in your attic due to the fact that your attic or chimney will be venting your entire house.

However, the good news is that both of these problems can be resolved.

This will address the problem in a short period of time. Regarding the mold issue, you might choose to redirect the duct to a functional vent that is exiting the attic instead of replacing it. This will, without a doubt, prevent the accumulation of heat and humidity.

5. Put your exhaust and intake holes right at very opposite positions

It’s important to realize that there will always be a little amount of heated air escaping from your exhaust system. Even that, though, is a source of concern, since your pants will in fact be perspiring all over themselves. However, there is a solution to this problem, and that answer is provided by an exhaust system. Remember that because warm air is lighter than cold air, it will be present in the upper regions or areas of your body as well. As a result, your floor part will be significantly colder than the rest of the house.

6. Make use of a good carbon filter

It is important to understand that while using the same room venting, there is an issue with the coal dust being cycled and then recirculated all over the room. This is detrimental to the plants, which will unavoidably be harmed as a result of this. Carbon filters, on the other hand, can be beneficial in this situation since they can filter out all of the coal dust. It is important to note that when purchasing carbon filters, you should ensure that they are of high quality so that you can be confident that your plants are developing properly.

7. Buy an AC for your room

If you can just place an air conditioner in the room where the grow tent is being stored, you will be able to resolve a slew of concerns relating to adequate air circulation in your home. If you do decide to get an air conditioner, go for a mini-split model rather than a split or a window model. It is important to note that if you install an air conditioner, the room temperature will be reduced, and the room will also be dehumidified. You should, however, be on the alert for dry air, which can be harmful to your plants if it exists.

The machine will introduce new and fresh air into the space while removing the old and stale air from it.

As a result of this, heat and humidity tend to collect, which has a detrimental impact on the plants’ growth.


Exhaust from your grow tent may be sent outside your home or into a separate room using ducting. You may also choose to vent it into the same room where you have the tent set up if you like. The second approach is significantly more convenient since it removes the inconvenience of venting outside your house.

How to vent a grow room?

Simply exhausting the humid air with the aid of an exhaust system is all that is required. You may also install a dehumidifier if the situation calls for it. It is possible that you may need to raise the humidity level from time to time throughout the growth process.

Should I leave a vent open in the grow room?

All that is required is the use of an exhaust system to vent the damp air out.

You may also install a dehumidifier if the situation calls for it, if necessary. The humidity level may need to be raised from time to time while your plants are in their growth phase.

Why should you opt for passive venting?

The absence of an exhaust system means that your tent will be deprived of any opportunity to obtain some fresh air. You may, on the other hand, open your windows and let the hot and humid air go.

How important is airflow in a grow room?

Proper ventilation in the grow room is critical to the success of the operation. This is due to the fact that it inhibits mold, mildew, pests, and illnesses from establishing root in the home. Make sure to arrange the airflow and ventilation system of the grow room before you begin planting any trees. You can naturally alleviate many of the challenges associated with indoor gardening by using the greatest circulation fans available.

See also:  What To Bring When Camping In A Tent

How do you vent a grow room without windows?

In the event that your grow room does not have windows, you might exhaust the air through a separate room in the house. It is possible to vent the air out of the room next door, which is what we are referring to. A ducting system connecting the tent exhaust to the adjacent room will be required in this situation.

How often should you vent your grow tent?

Your grow tent must be exchanged at least once every 5 minutes to ensure proper air circulation. If you are utilizing a grow tent that is 5′ x 5′ x 6′, you will have 150 sq/ft of available space. You’ll need a fan and filter that can move between 30 and 60 cubic feet per minute (CFM) to ensure appropriate airflow. Aside from that, you must maintain a balance between the air that comes in and the air that leaves.

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.

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.

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.

Because the volume of a grow area is equal to the amount of CFM necessary to air it per minute, the base CFM for this grow tent is 72. 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%!

  • 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%.
  • 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.
  • This amount is multiplied by the efficiency % of each component to arrive at the final result.
  • Adding in the heat output of your grow lamp (about 50%) gives us a needed CFM of 249 cubic feet per minute.
  • 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.
  • 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.
  • 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. You may also choose to use insulated ducting instead of regular ducting to lessen the whooshing wind noise that occurs during the installation.

Best Ways to Discreetly Exhaust Your Grow Tent

While grow tentkits are included with comprehensive assembly instructions, you will still be need to make important decisions about where they will be placed in your house. When attempting to determine the best location for a grow tent, the convenience of usage, garden security, and tent exhaust alternatives should be your key concerns. Figuring out where to vent your grow tent may be quite difficult, especially for first-time farmers. While tent manufacturers have created incredible technology for use within tents, there is little information available on how to properly position your exhaust outside of the tent’s setup.

Grow Tent Exhaust System Basics

Installing an exhaust system that swaps stale air for fresh air on a regular basis is essential for optimal cannabis cultivation in a tent. If at all feasible, you should attempt to exhaust the grow tent as far as possible outside your home. Inexperienced growers often fall into the trap of venting grow tents straight into residential areas, such as beds, which can be dangerous. Because heat and humidity can make your living circumstances rather uncomfortable – especially during the summer – this strategy is not suggested.

  1. The majority of tent growers choose to use a negative pressure exhaust system.
  2. The AC Infinity Air Filtration Kit, for example, was created expressly for the purpose of being used in grow tents.
  3. For more information, see How Slight Negative Pressure and Maintaining a Light-Tight Growroom Can Help Maximize Yields.
  4. The Air Filtration Kit from AC Infinity

Use Existing Outdoor Vents

For the most majority of experiencedindoor producers, pre-existing external vents are the preferred technique of draining a growroom or tent after harvest. Not only are these vents intended for the goal of directing air to the exterior of your property, but you are unlikely to have to undertake any big modifications in order to get access to or install them. Even better, outdoor vents are exceedingly unobtrusive and safe to install.

Laundry Room

If you have enough space, the laundry room is one of the greatest places to set up a grow tent for cannabis cultivation. Apart from having built-in exhaust vents that lead to the outside, these facilities also have water connections and electrical outlets to make life easier. If you want to make the most of your laundry room vent, you may place your ducting such that air is forced directly out the vent that was designed for your dyer. This will almost certainly need the use of a ducting boot that is the same size as your ducting and the vent.

The second solution may also necessitate the installation of a booster fan and a shutter to guarantee that hot air from the dryer does not enter your grow tent.


“Passive vents” are found in areas of your home that are not climate-controlled, such as attics and garages. If you didn’t already know, passive ventilation is the process of exchanging old air for new air without the need of any mechanical devices. It is possible that you have passive vents in your attic or garage if you have seen vents that are exposed to the outside straight from the inside. You have two alternatives when it comes to utilizing passive vents. The first advantage is that you can set up your grow tent in either of these locations and have it exhaust straight through a passive vent.

For the second option, you may make a hole in a wall or ceiling and direct the exhaust from the tent into a garage or attic.

For a garage or attic to be a successful exhausting place, you must guarantee that there is sufficient air movement through these spaces.

When it comes to transporting air out of garages and attics, AC Infinity Airlift Shutter Exhaust Fans are excellent choices.

Different Window Setups

Many cannabis farmers prefer to exhaust their grow tents straight via windows rather than through vents. In all honesty, windows are probably the most handy and popular option for this work because to their convenience and popularity. Window exhaust systems, on the other hand, lack discretion as compared to external vents because they demand you to leave your window open when using them. In addition to this, exposed windows that lead straight to cannabis gardens are considered a security risk.

Finally, because windows are strategically placed around the home, they provide you greater choice in deciding where to grow your plants.

Window Vent Kits

Window vent kits, which are meant for portable air conditioners, are used by some tent growers to ventilate their cannabis gardens. Not only are these kits widely accessible on places such as Amazon, but they are also particularly designed to function with ducting. Even more, window vent kits are unlikely to attract attention because they are often utilized to exhaust hot air from air conditioning systems.

Boarded Windows

For the boarded window option, you start with cutting a piece of plywood to the size of the chosen window, then paint it black. Open the window approximately 6-inches and attach the black piece of plywood to the entire window frame, covering the entire window frame. Finally, drill a circular hole into the piece of wood that is the same size as your ducting. This hole will serve as a vent for your home. This configuration enables you to position your grow tent near a window without experiencing significant noise leakage.

Summary The use of grow tents for indoor cannabis cultivation is a convenient and cost-effective option.

When you take into consideration the various exhaust options, this concept becomes more complicated and difficult to grasp.

Not only are such vents designed to move air, but they allow you to keep your garden secure from the outside.

AC Infinity is the most recognized name in air delivery systems, having designed and developed the most cutting-edge innovations in cooling and ventilation technology over the years.

They provide a range of inline fans that are both quiet and efficient, and which automate the growing process and track key metrics. Visitacinfinity.comor contactto learn more.

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