Inline fans are essential for growing cannabis in a tent or grow room. Growing indoors with the right equipment allows you to have more growing seasons per year, the ability to produce more quality plants, and the peace of mind to not have to worry about outside variables.
Inline fans provide the perfect ventilation for your grow room or tent. Proper ventilation helps to remove CO₂ depleted air and keeps humidity levels stable. They are the best solutions for keeping your grow space at the right temperature to avoid burning your cannabis. Lights create heat, which will burn your plants if not properly dissipated. Inline fans make indoor growing easier and more efficient with all of the air circulation and exhaust system benefits.
Table of Contents
- 1 How to Decide the Right Size Fan
- 2 Best Inline Fans for Cannabis Grow Rooms and Tents
How to Decide the Right Size Fan
When choosing a fan, it is important to consider the size of the area that you are using. The formula for finding the best inline fan with the appropriate capacity is the length x width x height (in feet) multiplied by 125% (1.25). The extra 25% allows for some wiggle room in case of resistance from carbon filters or ducting. This number is the amount of air your fan should be able to remove each minute.
Another important consideration for choosing the correct size fan for your cannabis grow area is what type of lighting you are using. Some lights generate more heat, which require more airflow to dissipate. For example, if you are using HID lights, always go for a higher CFM fan since these lights create more heat than LEDs.
Now that you know what you are looking for scroll through the list below of the best inline fans for cannabis grow rooms and tents, and choose which one will work best for you.
Best Inline Fans for Cannabis Grow Rooms and Tents
Active Air Inline Fans
Active Air is renowned for the excellence of their products. They offer five sizes from a 4’’ 165 CFM model, perfect for a 130cf room, to a 12’’ 969 CFM fan for up to a 775cf area. Other models include 6’’ 400 CFM, 8’’ 720 CFM, and 10’’ 760 CFM for a variety of space sizes.
The ceramic coating of these fans prevents rust and degradation of any metal parts. The thermally protected AC motor helps to prevent over-heating. The fans also have a high-quality molded impeller.
These inline fans operate very quietly. Each fan comes with all the needed mounting parts and hardware, making setup a breeze. Active Air uses UL- rated components in their fans to ensure the best possible products.
Hurricane Inline Fans
Hurricane produces inline fans to be professional quality and very efficient. These fans are made with UL rated components and a durable powder coated finish. This finish resists rust that occurs in humid growing environments. The UL rated mechanisms allow for noiseless operation.
With five size options it is easy to find one that fits your requirements. These models are 4’’ 171 CFM, 6’’ 435 CFM, 8’’ 745 CFM, 10’’ 780 CFM, and 12’’ 1060 CFM.
This fan is easy to install and includes the necessary mounting brackets. Also an 8’ 120V power cord is provided. This highly rated fan is made for the grower that needs a professional grade product.
Vortex Powerfan VTX
The Vortex Powerfan and is a wonderful solution for superior ventilation, while still maintaining a sleek style. The Powerfan has a rustproof hammertone powder coat epoxy finish. One of the most appealing features, is its durable sound muffling gauge steel casing. Compared to other fans on the market, which sound about as loud as an air conditioner, this unit is considered to be one of the quietest.
There are five different model choices. The 12’’ model offers a whopping 1140CFM! The other models include 4’’ with 172 CFM, 6’’ 497 CFM, 8’’ 747 CFM, and 10’’ 790 CFM.
These fans allows for easy duct hook-up due to the extended collar and lip features. With a permanently lubricated balanced motor, the Vortex Powerfan will last a long time. This unit also comes with a factory installed 120V power cord with 100% speed-controllability. Mounting brackets are included for easy installation. These items also have a 10 year worry free warranty.
The Vortex Powerfans give you a long lasting, quality product with multiple options depending on your capacity needs.
iPower GLFANXINLINE6 Inline Fans
iPower is another brand on this list known for their superior quality products. The iPower fan is made to be very low maintenance, with permanently lubricated bearings. They are also specifically designed to reduce noise and vibration.
This brand, like the others on this list, offer a variety of sizes and capability. The models include a 4’’ 190 CFM, 6’’ 442 CFM, 8’’ 745 CFM, 10’’ 862 CFM, and 12’’ 1060 CFM.
These fans are very lightweight and easy to install. They even come completely wired with junction box, strain relief, and 5ft UL rated power cord. The iPower fans are ideal for long tracks of ducting.
Apollo Horticulture Inline Fan
Apollo Horticulture fans are cost efficient and high quality. Designed for resilience, these fans include a durable steel coating covered in powder paint, to resist rust.
Apollo offers slightly less variety than other manufacturers, with only 3 models. These include a 4’’ model with 190 CFM, a 6’’ 440 CFM, and an 8’’ 740 CFM
This is fan also includes a built in speed adjuster. This eliminates the need to have to buy one separately. A speed adjuster gives you complete control for all of your growing needs. This fan is intended for the gardener who wants an all in one product.
Rule 240 In-Line Fan
Although small, this fan is very mighty. The Rule 240 is only 4’’ but has a high and efficient air flow. Operating quietly with a low amp draw this is perfect for smaller inlet and outlet connections. This fan also features a sealed motor shaft, protecting the fan from moisture, and a corrosion resistant nickel-plated casing.
Due to its small size, this fan is compact and very easy to install to any flat surface. Even with it only being 4” and 12V, this fan still offers an impressive 235 CFM of airflow. The Rule240 is one of the less expensive on this list, making it a great solution if you are just starting out in a small space.
VenTech VT Inline Duct Fan with Carbon Filters
VenTech fans include a superior aerodynamic frame built for stability and efficiency. The fan has a steel structure with powder coated black paint. Although this fan is used for grow rooms and tents, it is also used in hospitals. This gives you an idea of how professional this product is.
This model is 6’’ with 440 CFM, which is on the low side when compared to the other 6’’ models on this list. But this inline fan also comes with a Virgin Charcoal Carbon Filter giving you more bang for your buck. A carbon filter is a great addition to your grow area because it is the best way to encase any smells. With most fans you have to purchase this filter separately.
The mount for the fan is included as well. Ventech even offers a one year warranty on this product. This fan is the perfect solution for a space that is not too large but is looking for fantastic quality, easy set-up, and simple use.
Can Fan Max Mixed Flow Inline Fan
The Can Fan Max is one of the most efficient fans on the market for being so small and light-weight. This unit helps keep your electricity bill low, saving you hundreds of dollars a year and a lower overall life-time cost.
This fan only comes in 6’’ with 334 CFM. This makes it an excellent solution for a medium sized area not over-crowded with plants and lights.
The Can Fan Max also features an airtight housing to save space. A 5 year warranty is included, allowing you to be worry free. This fan is an excellent solution for high productivity for an intermediate grower.
Can Fan Pro Series
Can Fan inline fans are always efficient and strong, but the Pro series takes their designs to the next level. The Can Fan Pro series is more efficient and operates quieter than the Can Fan Max fans. They also have a more durable housing due to the fiberglass reinforced plastic compounds that meet UL and CSA standards.
The Pro Series comes with a 120V power cord. A variety of sizes is also offered, including 6’’ 420 CFM, 8’’ 863 CFM, and a massive 16’’ 2343 CFM. Each model includes 3 different speed settings.
Although it may be on the more expensive side, due to its efficiency and built in speed variability, the Can Fan Pro will save you money in the long run. They also offer one of the largest and highest rated fans out there, which is exceptional for an experienced grower using a large space.
Yescom is a great choice if you do not want to make a big investment right away. Featuring a backward curved impeller with vibration free operation, this fan works quietly. The motor has permanently lubricated ball-bearings, giving each unit an extended life.
There are a few options for the Yescom HO to fit your capability needs. These consist of a 4’’ 175 CFM, 6’’ 353 CFM, and 8’’ 720 CFM.
These fans come with a vertical/horizontal mounting set. Also the extended lip and collar allows for set up to be easy and quick. All components are UL certified. The Yescom fan is very cost efficient while still operating professionally.
Inline fans are a crucial piece of equipment for growing indoors. Installing these fans is simple with the instructions included with each fan. With all of the options above you can easily pick which fan will work best in your gardening area, to ensure healthy and happy cannabis plants.