What You Need to Know Before Investing in Indoor Grow Tent Fans
Are you looking for the best grow tent fan for your grow tent? Grow tents are easy to set up and allow for better environmental control. For successful yields, proper ventilation is critical.
Choosing the right fan is not as simple as it seems. Factors such as size, type, power, noise, etc. need to be considered before purchasing. Don’t worry, this guide has gathered all the information you need to make an educated purchase.
We’ve also rounded up some of the best fans for grow tents to make your search even easier.
Do you need a grow tent fan for your grow tent?
When we first started hydroponic planting, many customers asked us, do planting tents need intake fans? While you may not necessarily need an intake fan in many situations, for some growers it may be worth investing in one. The purpose of the intake fan is to bring fresh air into your grow tent and cool the space. Many growers like the freshness created by intake fans, which allow more oxygen to enter the space.
While intake fans are a good idea, you’ll want to make sure the exhaust fans take precedence over the intake fans during initial setup. An exhaust fan works similarly to an intake fan, but instead of drawing in new air, it pushes stale warm air out. Since your grow tent can get warm and humid, you must have an exhaust fan to help cool it down and maintain an optimal environment.
ECO Farm 4 Inch In-line Fan Exhaust and Intake Fan for Grow Room-White
Features:
While this ECO Farm inline fan might be small, it actually comes packing a punch. It is one of the best inline fans on the market. The unit comes with a high and highly efficient air flow. In addition to this, the unit operates quietly which is perfect . It draws a low amp which makes it perfect for small outlets and inlet connections. As though this is not enough for a feature, the unit also comes with a sealed motor shaft. This works to protect the fan from moisture. The strong casing is nickel plated which protects the unit from corrosion. Courtesy of its small size, the fan is compact and easy to install into any flat surface. Despite its 4” fan size, the unit still provides a whopping 190 CFM of airflow. Very low noise, Less than 37db, with variable speed controller, can easily adjust the fan speed. The fact that it is one of the least expensive units on the list makes it a perfect solution if you are just starting out with a small space.
Features:
This ECO Farm inline duct fan is used in indoor grow facilities and vertical farms, heating and cooling transfer, commercial drying and air filtration applications. Inline blowers can also create a negative pressure environment, simulate wind, exhaust odors and fumes, and draw in fresh air from outside. The blower provides an airflow rate of 2120 CFM using 550 watts at maximum speed. The fans don’t “purge” at lower speeds or waste power. The fans give you unique control flexibility without background noise or hum at low speeds. Coated steel housing prevents rust and protects the motor and blade from accidental damage and harsh elements to reduce maintenance in demanding applications.
Features:
Controlled by a 32-bit microprocessor, these powerful mixed-flow digital fans deliver outstanding performance and value. Available in 4", 6", 8" and 10" models, Jetfans is the ideal solution for your ventilation needs. Because the motors in these fans are EC (electronically controlled), they offer very high efficiency, reliability and controllability. They include a highly precise speed control unit that can be detached from the fan and power cord if desired. Low power consumption — Jetfans run only 25% of the power of comparable inline fans Their EC motors are efficient, reliable and responsive to speed control ETL certified
Hydrofarm Active Air 4" Inline Duct Fan
Features:
Hydrofarm is one of the most trusted brands in the growing industry. The active air inline fans are among its in-demand products. Active Air inline fans are well-loved by many because of its proven durability. It is being designed with a ceramic-coated metal housing. This coating increases the lifespan of the components by reducing heat and friction. It also helps to prevent corrosion caused by thermal and acidity. Furthermore, the ceramic layer also gives your device a nice sleek-look. This inline fan is being equipped with a premium molded impeller. Its high-quality construction makes it possible to deliver excellent performance. Moreover, this fan also produces low-noise output. It is a big advantage especially for those who wish to keep their grow spaces discreet and low-key.
Different Types of Fans
There are many different types of fans, and each type has its own purpose.
Oscillating fan
An oscillating fan will move air throughout the plant. They are one of the cheapest fans on the market and will help keep your grow tent cool and well ventilated.
The best oscillating fans for grow tents are usually lightweight and can be positioned in different ways to ensure even air circulation. For larger tents, several fans may be required.
They will not draw or inject air from your grow tent. Instead, they supplement exhaust systems that cannot move air around plants.
Install
The best grow tent fans can be mounted flat or using clips to the wall or ceiling of your tent. Ideally, you want air to circulate over, under and between the plants.
Pointing the fan directly at the plants can cause wind burn; the leaves can curl into claws. Strong air movements can also cause damage to the stems and should be avoided.
Inline fan
An ideal ventilation system should allow both warm air to escape and fresh air to enter your grow tent.
The best grow tent inline fans can push air in or pull it out. To allow for both, two fans would be required.
Air outlet or exhaust fan
The exhaust fan will act as a vacuum cleaner, pulling stale air out of your grow tent. The best fans for grow tents will constantly remove existing air.
Not going to install a separate intake fan? In this case, the diameter of the air intake hole should be at least three to four times larger than that of the exhaust fan. An alternative is to create multiple intake holes.
Intake fan
The intake fan has the opposite task. They take in fresh air from the outside and inject it into your grow tent.
Install
There are several setups possible depending on your preferences and the size of your grow tent. However, for any installation, flexible aluminum ducting and duct tape are required.
Take out the inline fan: the top of the tent is likely to be at least 41 degrees Fahrenheit hotter than the bottom. For this reason, most hobbyists attach and fasten fans to metal bars that span the ceiling.
Duct tape holds the duct and fan together. It then passes through the upper hole of your grow tent to the outside environment.
Inlet Inline Fan: Installation should begin with a fresh air source, preferably a window. The ducts then direct the airflow to your intake fan and into your grow tent. In this case, the fan is usually placed outside the tent or right in the tent opening.
It bears repeating that the intake and exhaust fans are the same device but used in opposite directions. Each will direct airflow in and out of the tent.
It’s best to keep your piping as straight as possible. You lose about 20% to 30% of your CFM (cubic feet per minute) for each 90-degree angle curve. This refers to the amount of air your fan can move and is discussed in more detail below.
Booster fan
You may find inexpensive fans called “booster fans”. They are used to help air circulate and move along long ducts.
These types of fans are add-on units and should not be used as the main fan of the ventilation system.
Conclusion
Any indoor growing space needs proper air circulation. Luckily, grow tents allow for better temperature and humidity control, making your ventilation job easier.
Whether you’re looking for an intake or exhaust fan, or just to increase existing airflow, there’s a fan to suit your needs. The best fan for a grow tent may represent a larger investment, but it will be worth it in the long run.
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