Best grow room fansThe agricultural sector is one of the areas in the world that are fully relied upon for survival and existence. The sector has been going through a series of upgrades and inventions for many years since the agrarian revolution. Today, things have gotten even better with the introduction of new farming technologies to increase food production. The use of grow rooms is one of the ways sustainable food production which is one of the global goals for this century.

A grow room is simply a room of any size, could be a simple home gardening room or a commercial growing place, where plants are grown under conditions that are controlled. There are many reasons people use grown rooms. Some use them for illegal farming of prohibited plants to avoid criminal repercussions, while others do it because it is the only way. It is important to understand the difference between a greenhouse and a grow room. While the former is partially sealed, the latter is completely sealed. Some may confuse a grow tent with a grow room but they are different.  Grow rooms have many benefits; they make the plant growing a possibility even where there is no garden.

How to ventilate a grow rooms

As much as grow rooms are an easy way of ensuring productivity, they require a lot of knowledge for proper maintenance; otherwise, there will be no benefits. Since they are completely sealed, it may be impossible for plants to receive ventilation and light. This is why understanding the necessary conditions expected to ensure success with grow rooms is important. Ventilation is very important to plants, they need air and light for proper growth. Plants that lack proper ventilation turn yellow due to lack of chlorophyll.

To better understand how it is good to know the why? The first reason why you need your room ventilated is to remove excess heat since grow lights emit a lot of heat. A little change in temperature can bring a lot of differences. Humidity is another factor that affects indoor gardening. Since plants emit vapor throughout the day, ventilation helps control the humidity which could lead to pests and diseases. But in the event your grow room is not getting enough vapor, you can use a grow room humidifier to provide your plants with enough vapor for them to grow.    Ventilation helps prevent pests and diseases to which indoor plants are vulnerable. Dump top soli encourages pests to lay eggs on. For the nutrient cycle, plants absorb CO2 every day making the level of CO2 to decrease constantly; ventilation ensures there is proper supply. Ventilation also helps prevent wind stress.

Now that you understand why, let’s now look at how to ventilate a grow room.

  1. Use oscillating fans

It is important to note that your grow room needs two types of fans; air extractor fans and oscillating fans. Oscillating fans blow air constantly above, under and around the plant. It circulates air in the room to keep the room cool. These fans are cheaper, easily available and easy to install and use.

  1. Air extractor fan system use

This system provides a cycle of air by replacing the old air with new fresh air. This should take place every minute, or at least after every three minutes otherwise your plants will suffocate. Choosing the right fan size is, therefore, a priority.

  1. Calculate fan strength

It is one thing to have ventilation in your room and another thing controlling the amount of air needed. You may need a little bit of math to calculate fan speed though it’s simple since fans are rated by cubic feet per minute (CFM). You can figure out CFM needed by the dimensions of your grow room and the exhaust efficiency. You simply calculate the volume of your rooms then multiply by efficiency drop. The formula is room volume x efficiency drop= CFM.

  1. Passive intake and active intake

Passive airflow and negative pressure determine passive intake. With this ventilation, you may have a fan blowing air out but not in. instead, you may use a hole to bring air in. Active intake systems, on the other hand, have air drawn actively into your room with a fan.

  1. Control humidity

Humidity comes due to transpiration and must be controlled; otherwise, it may cause problems for the plant. Lowering humidity can be done by venting the humid air out using exhaust system. You can also use a dehumidifier. You may need to raise humidity sometimes by simply turning off your exhaust temporarily.

  1. CO2 Injection

Plants need CO2 for transpiration. All you need to do is inject it into your grow room. The injection requires a completely sealed grow room for efficiency and safety. You need efficiency because CO2 works better for plants at high concentration. Safety comes in due to the fact that plants need more CO2 than humans do, you don’t want CO2 leaking into your room.

What kind of fan do I need?

As discussed in the previous section grow rooms require two kinds of fans oscillating fans and air extractor fan system. The oscillating fan simply blows air all around the room while air extractor performs a more advanced role of cycling air; old air replaced with new air.

Top 6 Best inline fans for grow room/grow tent in the market

  1. Amagabeli 6 inch inline dust fan 455 CFM for hydroponic grow room tent ventilation

Amagabeli is designed specifically according to aerodynamics. If you are looking to save energy with a high-performance inline dust fan while experiencing quiet ventilation for your room, this is your best choice. It provides the best air conditioning, ventilation, and cooling. It is best used in hydroponics grow tent, greenhouse, dryer vent, basement, workshops among other places. It is 6” in diameter with power supply of 110/120V and frequency of 60Hz. It has 1.1A current and <47dB noise level. It operates with temperatures of -110 degrees F and -150 degrees F and humidity of 5% to 95% RH.

  1. Active air 760-CFM Inline Fan, 10”

This is a 10” dust fan that offers innovation and great performance. It is made with ceramic-coated housing and UL-recognized components.  It will provide you with quiet operations on a high quality molded impeller and thermally protected AC motor. It includes 8 mounting brackets and 8 ft pre-wired 120V cord.

  1. Vortex 347 CFM S Line S-600 Fan, 6”

These are revolutionary s-line series of fans that give high efficiency combined with ultra-quiet operations plus many other states of the art technologies to give you performance beyond expectation. It has an energy efficient motor that powers the mixed-flow impellers. Double insulated walls reduce noise. It is assembled with high resistant polycarbonate casings, an integrated bbackdraftdamper and a mounting bracket designed for easy installation.

  1. Apollo Horticulture 6” 440 CFM Inline dust fan

This is one of the most superior products of this kind on the market today. It is a 6” ventilation inline fan with a speed controller built in. It has a noise rating of 75+/- 1.5dband 440 CFM. It uses 120W power at 1.1A with a fun speed up to 2630RPM.

 

  1. VenTech IF6 6” inline dust fan 440 CFM

This is a modified superior product when it comes to airflow in different environments including any size of grow rooms.  It produces 440 CFM with a speed of 2730 RPM and a power input AC of 1.1A. It is 6” in dimension with =/- 1.5 decibels.

  1. iPower 6” 442 CFM dust Inline fan vent blower for HVAC exhaust and intake

The fan has 442 CFM with a noise level of <50db and a power of 110/120V, standard household plug. It is UL-approved with quiet operation components. Noise and vibration reduced with composite fan blades and center hub. It is coated with a ceramic material for durability. It requires no maintenance due to the permanently lubricated bearing.

Top 5 best Oscillating fans in the market

  1. VIVOSUN 6” portable desk and clip-on fan for grow tent room

The product is made of metal mesh resistant to compression, preventing deformations. It is made neat with a cool design to prevent fracture. It has two speeds adjustment to control speed with strong spring clips and three well designed blades for enough air volume. It has air emission hole to keep the motor cool and is UL-listed.

  1. Comfort zone 6”—2 speed- Adjustable Tilt

This product provides you with comfort and silence working at whisper sounds. It is durable and very efficient. It has strong grip clamps that easily clips on to any surface. It has tough 6” break-resistant ABS plastic bladed material and 5.5-foot cord with steel safety cord. This is a low price high-efficiency product.

  1. Hydrofarm ACF 16 Active Air 16” wall mountable oscillating hydroponic fans

This is one of the high-efficiency fans on the market that is easy to install. It has two pull chains which are used to allow easy adjustments for ultimate air control for speed and direction. It operates really quiet. It has 90 degrees oscillating action with 3-speed settings.

  1. Active Air ACF 16 wall mount Fan

Wall mount will give plants a great opportunity for growth keeping the room and leaf temperatures cool with a quiet and smooth operation. It has 90 degrees oscillating action with 3-speed settings. It also comes with a 6ft power cord, 55W and 120V with 2 pull chains operate speed and oscillation.

  1. Hurricane wall mount fan – 18”| supreme series

This fan is a true definition of functionality and efficiency. It is ideal for home, greenhouses among other places. It has 3 speeds, high, medium and low. It has a dial and a pull for controlling. It has 90 degrees oscillation with multi-position tilt. Durability is achieved using a powder coated steel grill which is also clean.

What size of a fan do I need for my grow room?

Finding the right size of fun for your grow room requires a little bit of math. This may sound complicated to some yet in the real sense, it is very easy. All you need is to calculate the volume of your room, length x width x height, example 10x10x10. After this, calculate the CFM required. The fun should give you an exchange in an indoor room once every 3mins. Therefore, 1000 cubic ft /3 minutes will be about 333.3CFM. You can then use this information to calculate the ventilation required including other factors.

What size of fan do I require for a grow tent?

The fan size required for a grow tent can be calculated the same as the one for grow rooms. you calculate the volume of the tent and the CFM required. Multiplying the CFM with efficiency drop should give you the amount of ventilation needed and therefore the fan size.

FAQs

  1. What should be the size of my intake fan?
  2. To find out the size of your intake fan, it is important to understand the type of system you are using and the size of your intake fan. If you have a passive intake system, there is no need for an intake fan. The intake fan should be the same size as intake if you are using active intake.
  3. Can there be negative pressure in my grow room?
  4. Absolutely. This happens when the pressure within your room is less than that without. Passive intakes systems are common with this principle whereby negative pressure in the room pulls clean pressure from outside using the intake hole.
  5. What kind of fan is appropriate for my grow room?
  6. There are a lot of choices on the market each having different capabilities, this makes choosing a fan not very easy. For those who are not experts simply understand that inline fan duct should be greater than your CFM. You can choose the make and model depending on the specifications you require.
  7. How does the size of my fan and bulb relate?
  8. The size of your grow bulb is very important in deciding the size of the fan to use. Some bulbs emit more heat than others. If the bulb emits a lot of heat you will definitely require more cooling because a slight change in temperature can ruin your plants.

Conclusion

I hope you find this article on ventilation and best grow room fans quite helpful. With this knowledge combined with practice, you can easily become an expert in grow rooms and grow tents. Success in this activity depends on choosing the right ventilation system and understanding some basic required for operations.  It is not that hard to manage a grow room and anyone can do it.

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