Last Updated on November, 24th 2020
If you’re looking to cultivate plants, particularly cannabis, in an indoor environment, you need to have a nice sized grow tents.
However, simply purchasing a grow tent isn’t enough. You need to have the right conditions in the tent for successful cultivation.
Best Dehumidifier for Grow Tent
- SEAVON Electric
- Keystone KSTAD50B 50-Pint
- Frigidaire FFAD7033R1 Dehumidifier
- Pro Breeze Electric
- hOmelabs 70 Pint Dehumidifier
Achieving the best humidity levels is key. It is therefore imperative that you find a top dehumidifier for grow tent.
Top 5 Best Dehumidifier for Grow Tent (2020): Reviews
1. SEAVON Electric Dehumidifier
The first dehumidifier product on our list comes from SEAVON. This compact device with a 500 ml capacity processes approximately 250 ml of air daily and works best in small spaces. The dehumidifier’s optimal room size is 180 sq ft.
The SEAVON Electric saves a lot of space, and its size makes it incredibly useful. You can move it around the house if needed, and you can even bring it with you to your grow room.
One of the great features of this dehumidifier is its auto-shutoff function the moment it fills up with water. Its light turns red to let you know it needs emptying. You can easily remove the water tank, empty it, and put it back without any problems.
The Built-in Thermo-Electric Cooling technology on this machine allows it to operate without a compressor, meaning you get but a whisper of sound as it works quietly in the background. That makes it perfect for small apartments, a unit and even suitable in a bedroom for a good night’s rest.
While the SEAVON Electric works well for this size dehumidifier, it’s not the best choice for all environments. Its optimal operating temperature is between 59 and 86oF, and it will not work at temperatures below 41oF
- Auto-shutoff function
- Easily to remove water tank
- Easy to operate
- Incredibly quiet and efficient
- An excellent choice for small spaces
- Does not work in environments below 41oF
- Low capacity, only 250ml per 24 hours
2. Frigidaire FFAD7033R1 Dehumidifier
The first entry in our list of best dehumidifiers comes from Frigidaire, a renowned consumer appliance brand that has been around for over a century. The craftsmanship and quality in their work comes through once again in the FFAD7033R1 Dehumidifier with its high capacity of 70 pints per day.
The dehumidifier works round the clock, protecting your home from mildew and mold by drying out the air it processes. It also helps eliminate airborne bacteria that make breathing difficult, providing your home with cleaner and higher-quality air.
The most prominent feature of the Frigidaire dehumidifier is its Ready-Select electronic controls with a digital display readout that allows you to see the current level in your household. The Effortless humidity control lets you adjust the amount of moisture with its straightforward controls. Also, this dehumidifier has a 24-hour on/off timer and control lock, giving you complete control of when and how it best operates.
The FFAD7033R1 Dehumidifier’s patented SpaceWise moveable design includes a top handle, integrated side handles, and caster wheels, making it incredibly easy to move the machine from one room to another.
- Comes from a well-known brand, Frigidaire
- High-quality craftsmanship quality
- 70 pint per day capacity
- SpaceWise Moveable Design
- Effortless Control
- Easy to move
- Ready-Select Electronics Control
- Sensor can break after a few years, resulting in an “F0” readout error
- Shorter lifespan compared to other dehumidifiers on this list
3. Keystone KSTAD50B Energy Star 50-Pint Portable Dehumidifier
The Keystone KSTAD50B Dehumidifier is perfect for someone who has a fairly large grow tent and wants to keep their best items, tools, and vehicles safe from rust, mold, and stale odors. This dehumidifier filters 50-pints of moisture per day in a space of up to 3,000 square feet.
The KSTAD50B features electronic controls with an LED indicator display for easy use. The LED indicator display also shows a full alert to let you know if it’s time to empty the water tank, which you can also see for yourself via its transparent water level indicator. You don’t have to worry about the dehumidifier spilling, either, as it has an automatic shutoff feature as well.
We consider the KSTAD50B to be one of the best grow tent dehumidifiers because it is Energy Star compliant, meaning it saves on power, costing both you and the environment less to run compared to another dehumidifier on the market. It also comes with an easy-clean dust filter, meaning you don’t have to keep replacing it. The clean-filter alert will notify you when its time to wash that filter to keep your machine from running on overdrive to compensate.
- Energy Star certified
- Easy-to-use electronic controls and LED display
- Hose outlet for continuous use
- Filters up to 50-pints of moisture per day
- Automatic shutoff feature
- Dehumidifier does not turn off when the water storage is removed
- The water tank has to be emptied immediately – you can’t set it down because the bottom is not flat
4. Pro Breeze Electric Mini Dehumidifier
If you have a fairly small grow tent, you need not buy the best 30-pint dehumidifier. If you have a space of around 220 square feet, then the Pro Breeze Electric mini dehumidifier is perfect for your needs.
This mini dehumidifier for grow tent removes up 18 ounces of water per day with a 52-ounce tank capacity. That means you can leave this mini unit on its own for almost three days and let it protect your vehicles from rust, mold, and pests without having to empty the tank. If you’re away from home for longer than three days and are unable to empty the tank, the auto-shutoff feature will power down the dehumidifier.
The Built-in Thermo-Electric Cooling Technology, which makes use of the Peltier effect, allows the mini dehumidifier to run without a compressor. This provides whisper-quiet operation if you want to bring it to other sections of the house such as the bedroom or the bathroom. It is also compact and lightweight if you want to bring it with you on a trip for your RV or caravan.
Optimal operating temperature for this dehumidifier is between 59 and 86°F, perfect for a small grow tent, RV, caravan, or even a closet.
- Mini size, portable, and lightweight
- Removes 18 ounces of moisture from the air per day
- Auto shut off feature
- Peltier technology for whisper operation
- Does not work below temperatures of 41°F
- Not Energy Star Certified
5. hOmelabs 70 Pint Dehumidifier
hOmelabs is a relative newcomer to the appliance industry, having come into existence in 2014. Even so, their portable, 70-pint hOme dehumidifier gives other established brands a run for their money. This dehumidifier is perfect for any large room, basement, or cellar where you want the amount reduced.
As an Energy Star certified machine, this dehumidifier not only saves your home from the threat of mold, mildew, and airborne allergens—it also saves you money. It is incredibly efficient, meaning you’re easing the burden on the environment. It costs less to run this dehumidifier compared to others on the market, too.
The hOme Dehumidifier is fairly straightforward to use: you just set your ideal moisture and let it run its continuous 24-hour cycle until its tank is full. At that point, it will automatically turn off until you empty the machine. For convenience’s sake, the manufacturer included a hose outlet so you can attach a hose for continuous draining if you prefer continuous operation.
What sets the hOme Dehumidifier apart is the turbo mode feature that increases the fan speed from Normal Air of 165 CFM to High Air 188 CFM to maximize the best moisture removal and odor reduction in your household.
- 70-pint capacity
- 24-hour continuous cycle with a drain outlet
- Auto shut off feature
- Turbo mode feature
- Small tank (12.8 pints) means you’ll have to empty it over six times a day in high-mo environments
- Does not work in the same room as an evaporative cooler
Benefits of Using a Dehumidifier for a Grow Room
One of the most important things you need to understand as growers of cannabis (apart from things like led grow lights and) is that the best plants require a constant intake of gallons of water. When the moisture in a grow tent is high, over time the plants will use their leaves to absorb moisture from the space around them. When the moister is low in a grow box, they absorb water through their roots instead.
Thus, having control of the best moisture in your indoor grow tent allows you the best control over your plants’ nutrient intake. Moreover, having the right levels in your grow tent improves the development of the cannabis plant, giving you strong, healthy, and leafy plants. Outside of benefiting the plants, controlling the moisture in the grow room with one the best grow room dehumidifier is also best for preventing problems such as mildew, bud root, and leaf rot.
White powdery mildew is one of the most common issues with growing cannabis in high-moister environments. This fungal disease is tricky to deal with as growing cannabis plants grow best in humid environments. The good news is that a grow room dehumidifier and proper airflow in your grow tents are all you need to prevent this type of fungal growth and make a suitable environment.
The worst problem that growers experience due to poor environmental management is bud root. The problem with bud rot is that it’s difficult to spot. You could end up harvesting your cannabis plants thinking you have the best healthy crop only to find that you actually have a useless batch of moldy buds. Make sure you purchase the best dehumidifier for grow room and ensure only the best outcomes and that you don’t encounter this frustration.
Where to Place Dehumidifiers in Your Grow Area
Depending on the size of your grow area, you’ll need to balance three aspects when considering the best placement of your dehumidifiers: efficiency, redundancy, and accessibility. Efficiency means you have to place your dehumidifier in a manner that best covers all your plants consistently without wasting any energy.
However, you also have to consider redundancy. Maintaining the best moisture in the grow area is of paramount importance in cannabis cultivation; thus, you have to ensure that if one grow room dehumidifier fails, your other dehumidifier can take up the slack and handle the increased demand without affecting crop health.
Finally, you should ensure that your dehumidifier is accessible at all times, as you need to check on them occasionally after installation to make sure they are working at their best.
What Should My Humidity Be During Flowering?
Humidity is the measure of how much water vapor the air is currently holding. There are varying ways to measure moisture, such as relative, specific, and absolute. As a grower, you’ll mostly be concerned with relative humidity (RH) in the grow tent.
Relative humidity measures how much moisture is in the air compared to the maximum capacity of water that the air can hold at a certain temperature. The best RH for a grow tent during the flowering stage of marijuana is 40-50%. If you want to produce more resin, with a dehumidifier you can lower the excess moisture even further, setting the humidity level to 40-45% during the last two weeks of flowering.
Is a Dehumidifier for Grow Tent Expensive to Run?
Knowing how much it costs to run a dehumidifier for a grow tent is important, especially since you’ll need a number of them depending on the size of the area. A standard model dehumidifier runs at around 280 Watts per hour.
Let’s say that the current power rate in your area is 15 cents per kW. At these conditions, a dehumidifier for grow tent costs roughly 4.2 cents in power per hour to run. If you run the dehumidifiers in your grow room for 24 hours, that’s roughly a dollar per 24 hours, up to $365 per year per dehumidifier. That’s why we recommend purchasing Energy certified dehumidifier as they cost less to run and will save you a lot of money in the long run.
Wrapping It Up
This is just an introduction to what you need to know about dehumidifiers for your grow tent. We hope our handy guide provided you with the most vital information you need to balance moisture in your grow room. With a good dehumidifier, you can be growing some truly amazing cannabis plants.
Table of Contents
Grow Tent Dehumidifier Reviews
- SEAVON Electric
- Keystone KSTAD50B 50-Pint Dehumidifier
- Frigidaire FFAD7033R1 Dehumidifier
- Pro Breeze Electric Mini Dehumidifier
- hOmelabs 70 Pint Mini Dehumidifier
How to Choose the Best Dehumidifier for Grow Tent
- Best Commercial Dehumidifier
- Best Crawl Space Dehumidifier
- Basement Dehumidifier
- Best Dehumidifier for Grow Tent