How Many and What Type of Inline Fans Should You Use for Your Grow Room?

Nov. 14, 2022

How Many and What Type of Inline Fans Should You Use for Your Grow Room?

To be a successful hydroponic grower, you should ensure your plants get enough fresh air. This can be accomplished by using fans in your grow room. But how many fans do you need? And what type of fans should you use? In this post, we'll answer these questions and more.

What Are the Types of Inline Fans Available in the Market?

There are four types of inline fans available in the market. Choosing the correct type of inline fan will depend on the application for which you will use it.

1. Centrifugal Inline Fans

Centrifugal inline fans have blades that spin around a central hub. The blades force the air to move away from the center and out through the sides of the fan. These fans are best suited for high-pressure applications such as ductwork. Centrifugal inline fans are available in various sizes and can be controlled manually or via a controller.

2. Axial Inline Fans

Axial inline fans have blades mounted on a shaft perpendicular to the airflow direction. The blades push the air directly ahead. These fans are best suited for low-pressure applications such as exhaust systems. Axial inline fans are available in various sizes and can be controlled manually or via a controller.

3. Mixed Flow Inline Fans

Mixed-flow inline fans are a combination of centrifugal and axial inline fans. They use both blades and impellers to move air through the fan. These fans are best suited for applications where both high and low pressures are required, such as HVAC systems. Mixed-flow inline fans are available in various sizes and can be controlled manually or via a controller.

4. EC (electronically commutated) inline fans 

EC (electronically commutated) inline fans are another type of mixed-flow inline fan. They use blades and impellers to move air through the fan, but they also have an electronic motor that helps to improve efficiency. EC inline fans are more energy efficient than other inline fans and are available in various sizes. You can control EC inline fans manually or via a controller.

Why You Need Good Air Circulation in Your Grow Room

Poor air circulation in your grow room can lead to several problems, including: 

  • Stagnant air can lead to the build-up of mold and mildew. 
  • Poorly circulated air can cause hot spots, which can stress your plants and prevent them from growing properly. 
  • Stagnant air can also cause pests and diseases to spread more easily. 

How Many Fans Do You Need for Your Grow Tent?

The answer to that question depends on a few factors, including the size of your grow tent, the type of plants you're growing, and the climate you live in. We'll explain everything you need to know about choosing the right number of fans for your grow tent.

1. Grow room Size Matters

The size of the tent itself is the first thing you need to consider when choosing how many fans to use in your grow tent. One fan should be sufficient if you have a small grow tent (2' x 2' or 3' x 3'). However, you'll need two fans if you have a larger grow tent (4' x 4' or 5' x 5'). The reason for this is simple: more air needs to circulate in a larger space.

2. Two Types of Fans

Two types of fans are commonly used in grow tents: exhaust fans and intake fans. As their names suggest, exhaust fans remove hot air and excess moisture from the grow tent, while intake fans bring fresh air into the tent. It's important to use both types of fans in your grow tent; otherwise, you run the risk of creating an unhealthy environment for your plants. In general, you should have one exhaust fan and one intake fan if you have a 4' x 4' grow tent.

3. Climate Considerations

Finally, it's essential to consider the climate you live in when choosing how many fans to use in your grow tent. If you live in an area with high humidity levels, you may need more exhaust fans than usual to keep the air inside your grow tent dry. Conversely, you may not need as many exhaust fans if you live in an area with low humidity. The same goes for intake fans; if it's cold where you live, you may need more intake fans to keep the air inside your grow room warm enough for your plants. 

Related: Successful Hydroponics in Any Climate

Conclusion

Fans are an essential part of any grow room. They help to circulate fresh air and keep your plants healthy. To choose the right number of fans for your grow room, you need to consider the size of your grow tent, the climate you live in, and the type of plants you're growing. In other articles, we've provided tips on choosing the right fans for your needs. Keep reading our posts on inline fans listed below.

Why Do I Need an Inline Fan and How Does It Help Improve Plant Growth?
6 Inline Fans That Will Keep Your Indoor Grow Room Cool and Ventilated
How to Determine the CFM of Your Grow Room's Inline Fan
11 Steps to Choosing the Right Fan for your Hydroponic Grow Rooms
What Are the 10 Common Fan Types for Grow Rooms Available?

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