How To Hook Up A Air Handler In A Grow Tent

Quick Answer: How To Hook Up A Air Handler In A Grow Tent

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How do you install a ventilation system in a grow tent?

Here’s what you need to do (it’s simple): Install your grow tent, complete with a grow light inside. Install the exhaust fan at the very top of your tent, so that it is blowing air out of the tent. Make certain that there is an intake opening for fresh air to enter. Install a window fan that blows air out of the room where the tent is located.

Can I put AC in grow tent?

You may definitely pump it inside your tent, but leave the air conditioning outside so that it does not contribute to your heat problem. An extraction fan is required to evacuate heated air from the room and to aid with passive air intake. The heat generated by my light in a confined space was the source of the problem. In addition to the heat challenges, I also had problems with humidity.

How do you control temperature and humidity in a grow tent?

Methods for Lowering Temperatures Air exchange and overall airflow should be increased in your growth environment. A easy trick: turn the lights off during the day and turn them back on at night. When growing with High Pressure Sodium (HPS) lights, consider utilizing a cool tube to keep your plants cool. Install an air conditioning unit (air conditioners will also help to reduce humidity).

Can I vent grow tent into same room?

Even while venting your grow tent into the same room is perfectly acceptable, it is not ideal. If you apply the additional actions outlined above, you will be able to make a slight improvement in the situation. However, it is preferable if you are able to run ducting to carry the grow tent exhaust a longer distance. You may move it to a different room or outside your house.

Can you leave your grow tent open?

Yes, theoretically, you are allowed to keep it open. It is my goal to be able to control as many factors as possible, and growing under a tent allows me to do this. You’re exposing your plants to everyone and everything in the room as a result of this.

What size AC for 4×4 grow tent?

An industry standard is that for every 1 watt of high-pressure sodium light, the end-user will require 4 BTUs of cooling power. To put it another way, the calculation is (4 BTU’s multiplied by (total watts of grow room equipment) Equals total BTU’s of air conditioning required.

What size light for 5×5 grow tent?

Generally speaking, for every 1 watt of high-pressure sodium light, the end-user requires 4 BTUs of cooling power. In this case, the calculation is (4 BTUs) X (total watts of grow room equipment) = total BTUs of air conditioning that is required.

Can I use an air purifier in my grow room?

There are two basic reasons why clinics require air filtration systems: sanitation and safety. Due to the nature of these applications, an air purifier for a grow room must be capable of removing both scents and the small spores that cause mold and mildew to develop on the plants themselves.

Do you need fresh air in a sealed grow room?

There is no air extracted from or drawn into the grow-space from outside the sealed grow-space.

Although air temperature, relative humidity, and CO2 levels are important factors to consider when growing, they are not the only ones that should be considered. Generally speaking, odors are not an issue in the room because it is airtight.

Should I run my carbon filter 24 7?

During veg stage, you should run the inline fan continuously, but if you want to extend the life of your carbon filter, you shouldn’t have it connected at all during flower stage. Only when the buds begin to give off their aroma should it be connected during flower stage if you need it to mask the smell. During the growing process, mine are unhooked until I need to filter the smell.

How do you vent a 2 in 1 grow tent?

Connect a fan to the single end of a Y connection and run two sets of ducting through the junction. One ducting system served the side section, while the other served the main section. Then connect the ducting to the fan/exhaust tent’s and send it to the filter, which will have to be on the exterior of the building. In addition, the filter will be expelling air out rather than pulling air into the filter chamber.

How do you get fresh air into a grow room?

Active vs. Passive Because of the negative pressure that has been established inside the chamber, fresh air is permitted to enter through an input hole or duct. For this method to be functional, the intake hole has to be significantly bigger than the exhaust hole or duct. Alternatively, many tiny input holes might be used to provide appropriate suction.

How do I keep my grow tent cool in my garage?

You must turn off any hot air sources in the garage before continuing. The fan that is drawing through your lights should be pulling from outside your tent, within the garage, then up and out of the garage, according to the manufacturer. This will simultaneously chill your lights and exhaust the air in your garage in a single move.

How long should a fan be on in a grow room?

The garage must be completely de-humidified by removing all hot air sources. Ideally, the fan that pulls through your lights should come from outside your tent and within the garage as well as up and out of the garage. One simple procedure will cool your lights and expel the air from your garage.

How do I smell proof my grow room?

How Can I Keep the Smell in My Grow Room Under Control? Smoke Absorbing Gel should be used. The use of an absorbing gel in a grow room is one of the most effective means of eliminating odors from the environment. Get A Good Carbon Filter. Control of the temperature and humidity. The Correct Method of Direct Ventilation Exhaust Fill in the Gaps.

Do I need air intake in my Grow Tent?

Larger grow tents can also benefit from passive air intake, but they will necessitate the use of exhaust fans with greater CFM ratings. The intake of fresh air is simply one component of the indoor growth equation. Many parameters, including as the size of the grow tent, the number of grow lights, and the number of inline fans, influence the creation of the best growth environment.

How can I cool my grow tent without AC?

In the grow tent, use an oscillating fan to circulate the air. Find out which fans are the most effective for grow tents in this article. These fans keep the air flowing over the plants at a constant rate. Not only does this assist in keeping things cold, but it also helps to prevent the growth of mold.

Do I need to vent my grow tent outside?

It is not required to exhaust the air that is drawn through the carbon filter outside of your growing area; in fact, depending on your configuration, it may even be preferable to have the filtered air returned to the growing area immediately.

Grow Room Intake and Exhaust Setup – Tips

The ability to adjust the environment in a grow room is vital to the operation of a well-functioning, productive facility. Plants thrive in well-designed environments that provide clean, odor-free air as well as optimal temperature and humidity conditions that promote plant health. How can you improve air circulation and ventilation in your grow room in order to maintain a safe and healthy environment for both the plants and the people who work in there?

Choose the Right Intake System for Your Setup

When the lights are on, the air in your grow room should be refreshed every 5 minutes, and more frequently if you are having difficulty controlling heat and humidity. This can be performed by the use of a passive or active intake mechanism, respectively. Which is the most effective? It is most appropriate for small to medium sized institutions. Passive intake is recommended by HVAC mechanical professionals for the majority of grow tent systems. Instead of utilizing an air intake system, passive systems make use of an inline exhaust fan, which creates a vacuum that sucks stale air out of the tent while simultaneously drawing in new air via intake holes at the tent’s bottom.

Because passive systems aren’t completely sealed, they are more susceptible to pest infestations and odor problems than sealed systems.

Designing active intake tents involves including an extra inline fan at the base of the tent, which is responsible for actively drawing in fresh air through intake ports.

Grow Room Ventilation Configurations

Your business HVAC firm may propose one of many ventilation configurations, including placing the filter inside and the fan outside, placing the fan inside and the filter outside, and placing both the fan and the filter outdoors. However, putting the fan and filter within the unit is the ideal option for ensuring best performance with short, straight ducting that promotes efficient airflow, as opposed to the outside. In the end, the location of your grow lighting system and reflectors will determine the final design of your system.

The Importance of a Properly Sized Grow Room Ventilation System

In the same way that commercial heating and cooling systems must be properly sized, so must your ventilation system be. Fans’ performance and cubic feet per minute (CFM) requirements are affected by the size of your grow room, the length and course of ducting, and whether or not you are using a carbon filter. The use of carbon dioxide or an air conditioner to stimulate plant development in a grow room is advised. A sealed room and closed-loop system design with a fan and carbon filter are also recommended for this application.

Installing Grow Room Ventilation

With an adjustable rope, inline fans are often linked to the additional ceiling bars on your tent’s sidewalls. Depending on the use, it may be installed directly into an exhaust hole or to ductwork that runs through the port. Carbon scrubbers are hung in the same way as the inline fan, with the inline fan acting as a support. Outside air is drawn in from the bottom, passed through the filter, passed through the lights, passed through the inline fan, and then expelled outside.

With the assistance of HH Commercial Services, you may ensure a successful and productive grow room. To book a complimentary consultation with a certified HVAC professional, please contact us right now.

How to Ventilate Your Grow Space

You must have adequate ventilation in order for your plants to flourish. By giving your plants with fresh air from outside your grow tent, you are supplying them with CO2, which is necessary for their photosynthesis. Meanwhile, removing the air inside will help to keep the temperature and moisture buildup under control, avoiding mold and mildew from growing on your plants’ leaves and so hindering their ability to thrive. The extra benefit of refreshing the air within is that it helps to eliminate unpleasant smells.

Essential Grow Tent Parts

Assuming you have previously chosen or purchased your grow tent, this tutorial is equally useful if you are working in a grow room. This is a list of the three most important components that you’ll need to put together while building a ventilation system:

Inline Duct Fan (Active Exhaust Fan)

An inline duct fan, also known as an extractor fan, is a device that is used to exhaust hot and humid air from within a growing chamber or tent. Even little variations in temperature and humidity may have a significant impact on your chances of generating a fruitful harvest. Furthermore, unregulated heat and humidity cause poor growth circumstances, resulting in your plants being unable to absorb water or simply failing to make it through the day. The use of an inline duct fan in your grow room is essential for controlling the climate in your growing environment.

Using an active exhaust fan to draw in cooler air can assist you in maintaining a comfortable inside temperature level.

In ventilation systems with passive intake, inline duct fans also serve as a vacuum, drawing in new CO2 from the outside air and bringing it into the system.

Duct Tubes

Extraction fans, also known as extractor fans, are used to exhaust hot and humid air from within a grow room or tent. They are also known as extraction fans. Slight variations in temperature and humidity can have a significant impact on your ability to produce a profitable harvest. Furthermore, unmanaged heat and humidity cause poor growth conditions, resulting in your plants being unable to absorb water or simply failing to make it through the season. The use of an inline duct fan in your grow room is essential for controlling the environment in your growing area.

See also:  How To Temprature Control A Tent

You can manage the inside temperature more effectively by using an active exhaust fan to draw in colder air.

If your grow room is located in a cold climate, the amount of energy required to run your inline-duct fan will be influenced by how effectively your grow area is insulated. In passive intake ventilation systems, inline duct fans also function as a vacuum, drawing in new CO2 from the outside air.

Carbon Filter

A carbon filter will be required in order to prevent scents from traveling to your garage or closet. This device, which is also known as a carbon scrubber, removes the smell of plants from the air, capturing the odor and neutralizing it. Carbon filters are a must-have for growers that have to cope with very strong odors. They are also used to trap pollen and spores, which helps to keep the air clean for farmers who suffer from allergies or respiratory problems such as asthma.

Typical Grow Tent Setups

There are several configurations for these components that may be used to create airflow into your grow environment. As a standard configuration, the fan and the filter are placed inside, which makes it easy to control while also dampening the noise from the fan. If air is being drawn out of your grow room, one or both of these components can be placed in any sequence within the ventilation chain. It is possible to customize your ventilation system in at least four different ways in order to meet your requirements.

The fan and/or filter can be placed outside of the grow tent in this situation.

Because heat rises to the top of the building, venting that hot air at that point will improve the efficiency of the ventilation process.

What Size Inline Fan do I Need?

There are many different sizes of grow areas, and each one requires a particular amount of airflow to be properly ventilated. It is critical for maximum plant growth that stale air within your grow room is exchanged with fresh air from the outside of your grow area. CFM (cubic feet per minute) is the unit of measurement for this number. To determine the quantity of airflow required for your grow room, first calculate the volume in cubic feet of the space. Most grow tent specifications are offered to you in inches; thus, you must convert the size of your space from inches to feet.

This will match the capacity of your grow room, and the needed airflow will be equal to this value in cubic feet per minute, or CFM, as well.

When the dimensions are added together, the result is 72 ft 3 in length.

Keep this amount handy since you’ll need to adjust it to account for the ducting, carbon filter, and any other accessories you decide to install.

Factoring in Accessories

In order to boost your base CFM, you must multiply it by the efficiency percentages of your accessories. Adding components to your grow room, including as ducting and carbon filters, may limit fan performance, which will have an impact on the fan size you require. When it comes to ducting, the quantity and sharpness of its bends play a role in determining the resistance to airflow. As a result, airflow decreases the longer it needs go, making a straighter ducting path more effective. The greater the sharpness of the curve, the greater the severity of the efficiency drop; a 30° bend reduces airflow by 20%, while a 90° bend reduces airflow by 60%!

  1. If you are utilizing LED grow lights, you must also take into consideration their heat production, which can raise your necessary CFM by as much as 50%.
  2. Because the efficiency of accessories on the market might vary substantially, you can utilize approximated efficiency percentages based on the type of component you are using.
  3. This amount is multiplied by the efficiency % of each component to arrive at the final result.
  4. Adding in the heat output of your grow lamp (about 50%) gives us a needed CFM of 249 cubic feet per minute.
  5. The following is a breakdown of this calculation: Multiplying your base CFM (72) by the percentages of ducting (20 percent), carbon filter (60 percent), silencer (20 percent), and grow light heat (50 percent) of your choosing will provide about the 249 CFM you require.
  6. This will let the fan to operate at lower speeds while remaining quieter, as well as providing additional area for future expand space system growth.

Look for inline duct fans that are powered by direct current (DC) fan motors, which are the quietest as compared to alternating current (AC) fan motors. PWM-controlled EC motors are also acceptable in terms of acoustic performance.

How to Manage Grow Space Noise

There is no question that you will hear some noise when employing a high-powered fan to air your grow environment. You wouldn’t want to spend an extended period of time in an area with excessive noise pollution or catch the attention of your neighbors. Fortunately, you can plan your component selection with noise reduction in mind, and you can take further steps to make your grow area as as quiet as possible. Making the decision to choose a fan with speed controls and a CFM rating that is 25 percent more than your minimal need will allow you to run the fan at lower speeds without compromising performance.

If you want to further muffle the sound of your active exhaust fan, you may attach a silencer to it, which will lessen the sound of the intake fan.

How to Cool a Grow Tent: Most Exclusive Cooling Solutions EVER!

What is the best way to cool a grow tent? The most exclusive cooling solutions available! 18766Views0 Recent publications have addressed particular concerns around chilling grow spaces, and we’ve published a lot of them pieces recently. There are guidelines on how to regulate excessive temperatures, how to chill grow rooms with ice, and other such topics. However, we soon came to the conclusion that there should be an article that covers everything about how to cool a grow tent, as well as the questions that follow.

  • It should be a one-stop shop article from which every grower would gain in one way or another.
  • It took a week to do the study, collect every difficulty that growers were experiencing with reference to grow tent cooling, present the most up-to-date solutions to every concern that was discovered, and put the whole thing together.
  • So, make yourself a cup of coffee and set aside 10 minutes to read over the entire essay.
  • Let’s cruise through the entire composition and meet up at the conclusion once more.

Reasons for A Rise inGrow Room Temperature

It’s fine if you haven’t finished building your grow room yet. However, if you already have one, you may be experiencing severe discomfort as a result of the high temperature. Consider the following causes for the situation before continuing further: a.

Improper Ventilation

Take a stroll in the outside garden or the neighborhood park. Is there anything else that mother nature provides them, apart than sunlight, that they need?

Yes, you are correct; that is the natural air movement. In the case of indoor growing, this is referred to as ventilation. Plants suffer from a variety of problems when they do not have adequate ventilation. And the first of these is a greater internal temperature.

Too Many Heat Producers

The most significant source of heat in a grow room is the lighting. However, there are some objects that produce heat that circulates throughout the area. Examples include light ballasts, large pumps, and other such items.

Not-so-Insulated Location of the Grow Tent

For the past two years, I’ve worked as a grower. And, right from the start, I started growing plants in my basement. Growing in such a well-insulated space allowed me to get temperatures that were at least 5°F lower than those obtained with the same arrangement planted anyplace else in the home. And when the plants become overheated as a result of one or more of these factors, they begin to exhibit symptoms of stress. As a result, the amount of bloom or fruit produced is minimal. Please read the next sections of the post if you want to learn about some practical strategies to keep your grow room cool in real time.

7 Grow Room Cooling Solutions That Actually Work

When it comes to chilling a restricted place like as your grow room, nothing compares to the effectiveness of an air conditioner. It not only cools the surrounding environment, but it also removes the heat created by equipment such as blowers, generators, pumps, ballasts, and other similar devices. ACs of varying sizes are likely to be utilized by growers. These are sometimes labeled in terms of BTU (8,000 BTU, 10,000 BTU, 12,000 BTU, 24,000 BTU, 36,000 BTU, 48,000 BTU), and sometimes in terms of weight (8,000 BTU, 10,000 BTU, 12,000 BTU, 24,000 BTU, 36,000 BTU, 48,000 BTU) (1 Ton, 2 Ton, 3 Ton, 4 Ton).

Take notice that, while many growers employ portable air conditioning units, window air conditioning units, and other similar devices, a ductless mini split system is the most efficient.

As a result, you can’t always rely on your air conditioner to do all of the cooling duties.

Take Care of The Ventilation

The ventilation or air exchange of a grow room is the most essential environmental aspect that has a direct impact on the temperature of the growing environment. Because the heat created within will simply build if there is insufficient air flow, the temperature will continue to rise indefinitely without effective ventilation. The next question that comes to mind is, “What does it need to have appropriate ventilation? “. To put it succinctly, it implies that the plants should receive the same amount of airflow as’mother nature’ would provide if they were cultivated outside.

There are two types of fans that may be used to complete the task: oscillating fans and extractor fans.

While the other fan circulates old air out of the room and brings in fresh air from the outside.

You’ve picked the optimal combination based on the size of your grow area, the quantity of plants you want to produce, and other environmental factors.

Begin by locating the input ductwork in the coolest available location nearby. After that, spend some money on an automatic controller that adjusts the fan speeds in response to changes in temperature, such as a thermostat.

Structurize The Grow Room

A tent that is overcrowded is never a good thing. Every tent has a limit to the number of plants that may be accommodated within it. The presence of an excessive number of plants can result in a variety of problems, one of which is high temperatures.

Using Smart Pots

The use of smart pots to house plants in order to assist them cope with heat stress is an excellent solution. These can assist in surge evaporation, which reduces the likelihood of overheating, as well as maintaining the health of the plants by delivering oxygen from the sides. The use of Coco air is another clever pot hack that aids with the cooling of the growing tent. Your plants will be more resistant to the heat as a result of it. There are a number of additional substances that can aid in the battle against heat stress.

Optimize The Lights

Lights are the primary source of the potentially hazardous heat surges. There are a few instances in which lights can behave more like heat sources than they do as lighting sources. The methods are as follows:

  • When the plants reach maturity, the lights should be dimmed. Extreme heat generation as a result of low-quality lighting
  • There is insufficient airflow between the lights and the plant canopy. Leaving the light on when it isn’t essential (during the day)

Several things may be done to optimize the lights in order to reduce their heat-generating effects, including:

Raise The Lights

Raising the light by 8-10′′ might be used as a temporary remedy to minimize direct heat impacts from lights on your plants.

Install A Light Mover

Some hot spots and uneven lighting across the area might be caused by light sources that are fixed in one location. Consider taking up residence in a motorized mover. Using a curved track, they may convey the lights back and forth or around a corner. As a result, the light dispersion across a large region becomes more uniform, which is advantageous. Additionally, it minimizes the amount of hotspots and the problems associated with canopy overgrowth. First and foremost, it contributes to lessening plant damage caused by excessive heat exposure.

Run Lights At Night

A continuous location for the lighting sources may result in hot spots and uneven illumination across the room. Put yourself in the driver’s seat of a moving truck. Using a curved rail, they may carry the lights back and forth or in a circle. As a result, the light distribution over a large area becomes more uniform, which is beneficial. The amount of hot spots and problems caused by canopy overgrowth are reduced as well. First and foremost, it contributes to lessening plant stress caused by excessive heat exposure.

See also:  How To Keep Your Roof Top Tent Secure

Use Air Cooled Lights

Using air-cooled lights is an excellent technique to keep lights from creating heat and causing problems. In order to exhaust the hot air from the bulbs, they might be linked to the ducting system. The process will be accelerated even further if the insulation is properly installed. If you want to take it a step further, you may go for lights that are water cooled.

They are equipped with a water reservoir and a water pump in order to preserve water. It is possible that a water-cooled light can discern the essence of an air conditioning unit in a grow tent that has been properly sealed.

Ensure Proper Ducting and Insulation

Lighting that is equipped with an air cooling system is a fantastic way of keeping your home cool. In order to remove the hot air from the bulbs, they might be linked to the ducting systems. It will be much faster if you use good insulation throughout the building. A step further might be taken by investing in water-cooled lighting fixtures. To conserve water, they are equipped with a reservoir and a water pump. The core of an air conditioning unit may be deduced from a water-cooled bulb in a fully sealed grow tent.

  • It should not be placed on a south-facing external wall. A grow room should not be located beneath a hot roof. Try a basement or something similar
  • It could work.

Optimize PlantsNutrient

Location on a south-facing outside wall is not recommended. A grow room should not be located beneath a hot roof. Try a basement or anything comparable; it should work.

Keep Humidity Under Control

Another important factor influencing the temperature of your grow room is the presence of a low degree of humidity. As you are aware, a decrease in humidity results in an increase in temperature. In the same way, vice versa. Increasing the relative humidity of the growing space can help you deal with a high temperature. This will assist plants in exhaling water vapor through their leaves, resulting in a cooling effect. Now, how big of an increase would be required? Or, alternatively, how do you keep your grow tent cool with that?

Products Used in A Grow Room Cooling System

Growing plants inside is a system that has been created. As a result, there is a solution available on the market for virtually any problem you might possibly encounter. A couple more options are available when it comes to cooling as well.

Inline and Oscillating Fans

Every grower understands the need of having a fan in order to manage temperature and ventilation. Even after being aware of this, many make blunders when it comes to selecting the appropriate type and size of grow fans. Oscillating fans and inline fans are the two types of fans that are commonly used in grow rooms. Air circulation around the plants is provided by oscillating fans, whilst inline fans exhaust heated air and draw in fresh air. It is critical, however, to select a fan with the appropriate CFM rating.

The following are some of our suggestions: -– The best inline fan is: Apollo Horticulture 6″ Inch 440 CFM– Best Oscillating Fan (Wall Mount): Hurricane 16″ Wall Mount Fan– Best Oscillating Fan (Standby): WestPointe HP 16″ Stand Fan– Best Oscillating Fan (Standby): WestPointe HP 16″ Stand Fan

Mini AC Units

As you are aware, there are three types of air conditioners available: portable, split, and window. While these three types differ in terms of size, application, functionality, and, of course, price, they are all useful. If you’re utilizing a grow tent of the size of a 2X4 or 5X5, a portable air conditioner that fits your budget will suffice. Split air conditioners, on the other hand, are the greatest choice for growing in a bigger space, such as a grow room. For the third option, we do not believe that a window air conditioner would be the most cost-effective option for a developing room.

You can, however, have a look at our in-depth examination of the many types of grow room air conditioners. For the time being, here are our top selections for air conditioning systems for growth rooms and tents:

Model BTU Coverage Price
Midea Portable Conditioner 12,000 BTU 300 Sq.ft. See Price
Whynter ARC-14S 14,000 BTU 500 sq ft See Price
LG LP0817WSR 8,000 BTU 150 sq ft See Price


The unusual piece of equipment has evolved into a one-stop solution for many growers that need to regulate the environment of their grow room in an efficient manner. It’s essentially an air conditioner that also includes a CO2 feeder, dehumidifier, and air filter. Split type and water-cooled type are the two sorts of these computers available. The second option is more likely to be used by growers. The main feature of this unit is that it automatically cools and dehumidifies the room based on the temperature and humidity of the environment.

In case you’re interested, here’s a link to the Opticlimate Pro 3.

Water Chillers

Chillers have been assigned the task of absorbing the excess heat that accumulates in a growing environment. There are two types of chillers: water-cooled and air-cooled. Water chillers are preferred by most growers, despite the fact that they are more expensive. Hydroponics water chillers have a reservoir that holds water as well as a nutrient solution. This is the heart of the system. The combination of water and nutrient actively contributes to the cooling of the temperature. Once again, water chillers are only suitable for indoor hydroponics.

Evaporative Cooling Systems

Although the nomenclature seems complicated, the procedure that ECS’s follow is rather straightforward. It contains a solution that may release mists into the air, and the mist is intended to be vaporized after being inhaled. An additional feature is a swamp cooler fan, which pumps air into a moist medium. A result of this combined activity, evaporation occurs, and the temperature of the grow tent environment begins to decrease. One particular model that we advocate is— Evaporative Air Cooler SF-614P from SPT.

Ice Box

If you want to spend the least amount of money possible to keep a small grow tent cold, preparing an icebox yourself is the most effective method. The procedure is really simple, and it is far less expensive than any of the other goods described above. A tutorial for building an icebox in your grow room is available here on our site. These are the goods that cool directly by cooling air to keep the temperature as low as possible. However, there are several additional goods available on the market that, while they do not provide cool air, they are excellent at preventing heat generation.

  • Creating an icebox yourself is the most cost-effective method of keeping a small grow tent cold while spending the least amount of money. Unlike any of the other goods described above, this one is really simple and inexpensive. A tutorial for building an icebox for your grow room is available here on our site. In order to maintain a low temperature, these items cool immediately by cooling air. Although some items on the market do not provide cold air in and of themselves, they are extremely effective in preventing heat generation and reducing energy use. A quick rundown of the options is provided below.

It should be noted that using all of these products to control the temperature in virtually every grow space is effective. However, the problem arises when you are unsure of ‘How Big’ or ‘What Kind’ of product you should purchase after you have decided on your budget.

This is because, depending on the size of your grow tent, the type and power provided by each of these products varies significantly. You should make certain of this whenever you purchase a product to deal with the heat problem.

Check If You’re Making These 4 Mistakes Or Not-

  • Dimensions of the exhaust hole and ducting are not identical
  • Too many bends in the ducting
  • Daytime running lights
  • And an excessive amount of space above the lights

Summary Line

So, there you have it, gentlemen, that concludes the posts. Take a bow, gentleman, if you’ve made it through each and every section. In addition, please let me know if there is anything I have overlooked. Cheers! I’m Saleh, and I’m a blogger that enjoys doing home improvement projects on the side. is my tiny corner of the internet where I can communicate what I’ve learnt first-hand, particularly in the field of home repair. The most recent posts by smsaleh (see all)

How To Perfect Your Grow Room’s Ventilation System

The ventilation system in an indoor garden is equally as crucial as the lighting system and nutrition regimen in the garden. It is the ventilation system’s responsibility to ensure that the environmental conditions (temperature, humidity, and CO2 levels) within an indoor growing area remain stable. Temperature, humidity, and CO2 levels are all factors that have an impact on photosynthesis and, as a result, on how a plant grows and develops. It is not possible for a plant’s capacity to photosynthesize to be hampered if these variables are maintained within the ideal range.

It is possible that the ventilation system in a hobby indoor grow will be minimal, consisting just of intake fans, exhaust fans, and recirculating fans.

What matters is that the basic functions of the ventilation system remain the same, regardless of whether a grower implements a basic or more advanced ventilation system: to maintain uniform temperature and humidity levels within the desired range, as well as to supply the plants with CO2 for photosynthesis.

Grow Room Fans

The best temperature range for most indoor gardening is 72-80 degrees Fahrenheit. The ideal temperature range in grow rooms with enhanced CO 2 levels is slightly higher (80-85 degrees Fahrenheit) than it is in grow rooms without enriched CO 2 levels. An agricultural farmer will benefit from the equipment used in the ventilation system since it will help him maintain temperatures in these ranges. Any ventilation system would be incomplete without a motorized fan, which is the most prevalent piece of equipment.

It is possible to use an exhaust fan to remove excess heat from the growing area while simultaneously bringing in fresh air into the garden space.

In medium-sized grow rooms, it is usual practice to use motorized fans for both the intake and the exhaust ventilation.

Using atmospheric controllers with built-in thermostats and humidistats, growers may automate the operation of motorized fans in the growroom and maintain more constant environmental conditions.

Fans that circulate air throughout the growing area are another useful tool for maintaining consistent atmospheric conditions throughout the growing space since they assist to “mix” the temperature and humidity of the garden’s environment. Additionally, check out 10 Tips for Gardening in Grow Tents.

Grow Room Air Conditioning

An air conditioner is one of the most popular devices found in a modern indoor grow environment. A mini-split air conditioning system is what I’m talking about. These types of air conditioners are quite effective at eliminating excess heat while also maintaining ideal temperatures and humidity levels in the environment. An air conditioner is the most powerful of all the technologies that can be used to manage the atmospheric conditions in an indoor garden since it allows farmers the greatest control.

  1. In order to select the best air conditioner for an indoor growing environment, a grower should pay special attention to the machine’s BTU rating.
  2. Don’t allow the definition of BTU throw you off the scent.
  3. A farmer can utilize the BTU rating to determine the right size air conditioner for his or her garden, in other words.
  4. The size of the growing space, the lighting equipment, the ballasts for the lighting equipment, the CO2 equipment, and any other electrical accessories used in the garden are the aspects to consider.
  5. Although the heat generated by the lighting system and other grow equipment will need to be taken into account when determining the needed cooling load, the cubic footage of the room will determine the minimum BTU needs for the air conditioning equipment.
  6. BTU Cart for Room Sizes in a General Manner
Cubic Feet BTUs
1 – 1,200 5,000
1,200 – 1,600 6,000
1,600 – 2,000 7,000
2,000 – 2,400 8,000
2,400 – 2,800 10,000
2,800 – 3,200 12,000
3,200 – 3,600 14,000
3,600 – 4,000 15,000
4,000 – 4,800 18,000
4,800 – 5,600 20,000
5,600 – 6,400 22,000
6,400 – 7,200 25,000

Also see: How to Deal with Humidity in a Growroom for more information.

Grow Lighting Systems

The lighting system in most indoor grows generates a significant amount of extra heat, which must be managed. Because of this, it is extremely necessary to take into account the lighting equipment when determining the needed cooling load. As soon as a grower establishes the required BTUs based on the cubic feet of grow area available, he or she may calculate the additional BTUs that will be required to compensate for the heat generated by the garden’s lighting equipment. The total lighting wattage should be multiplied by 3.5 to obtain this figure, which is a decent rule of thumb.

Grow lights generates a significant amount of extra heat, which must be managed.

Ballasts for Grow Lighting Systems

When sizing cooling equipment, it is important to take into account the ballasts that are utilized in the lighting system. Growers can eliminate the need for additional cooling loads in the grow area by employing remote ballasts that work at a distance from the lamp itself and by removing the ballasts from the growroom itself. Although they will not take up more room in the garden, ballasts will need to be factored into the equation when computing the needed BTUs for cooling. When choosing a ballast, the best rule of thumb is to double the overall wattage by 2.5.

See also:  How To Tighten A Tent Rope

Consider the following scenario: A grower has 10,000 watts of lighting equipment and operates the ballast within the growing room.

Grow Room CO 2Burners

Several indoor horticulturists make use of CO 2burners to increase the amount of CO 2 in the air. These burners generate heat in the growing space, which must be taken into consideration when calculating the needs for cooling equipment. In order to determine the BTU output of a CO 2burner, the size of the unit and the number of burners in the unit must be considered. According to a fairly simple rule of thumb, for every CO 2burner with two burners, you should add 10,000 BTUs of cooling. CO 2burners intended for indoor horticulture use, on the other hand, are typically offered with a chart indicating how many BTUs they produce.

The BTU rating of a CO 2burner, to put it another way, is only relevant while the device is in operation.

Also see: Mastering CO2: The Optimal CO2 Levels for Marijuana Production.

Other Grow Room Electrical Equipment

Almost every piece of electrical equipment that is utilized in an indoor grow—air pumps, atmospheric controllers, fans, dehumidifiers, and so on—contributes to the increase in temperature of the environment. In the majority of situations, these pieces of equipment are little and will not have a significant impact on the needed cooling capacities. When calculating the needed BTUs for cooling, it is usually a good idea to choose a slightly higher BTU rather than a slightly lower BTU when doing calculations.

  1. The wisest course of action is always to err on the side of caution.
  2. The capacity of plants to photosynthesize is directly influenced by the temperature, humidity, and CO2 levels present in an indoor garden environment.
  3. Tips for Growing Cannabis in Small Spaces is another article worth reading.
  4. Hobby growers may typically get away with a handful of fans to keep the temperature and humidity under control, however commercial growers will almost certainly need to add air conditioning equipment.
  5. An indoor grower may more correctly predict the quantity of air conditioning he or she will require to maintain appropriate atmospheric conditions by taking into account the size of the space, the wattage of the lighting system, and the heat generated by CO 2burners.
  6. Horticulturists who adhere to these fundamental principles will be rewarded with more consistent yields and a higher return on their investment.

They provide a range of inline fans that are both silent and efficient, and which automate the growth process and track crucial data. For additional information, please see or contact us.

Air Conditioner For Grow Room

As long as you get the proper air conditioning system, investing in an air conditioning system is an excellent step toward improving your cooling in your indoor garden. Take into consideration the following popular types of air conditioning systems while looking for an air conditioner.

Portable Air Conditioner

Portable air conditioners are both handy and effective, and they can be transported from one location to another in a matter of minutes. Because of their tiny size, they are ideal for use in smaller grow rooms or grow tents. Generally speaking, there are two primary types of portable units, each of which has either one or two tubings. We advocate investing in units with two tubes rather than one tube since it will prevent the exhausted heat from being re-circulated back into the room.

Window-Mounted Air Conditioner

Installing window-mounted air conditioners is more difficult than installing portable ones. This sort of air conditioning unit may be connected to a wall or window through which half of the unit is visible. For small to medium-sized gardens, a window-mounted conditioner is the ideal solution.

Mini-Split Air Conditioner

In most cases, mini-split air conditioners are ductless units that are divided into two parts: the rectangular unit that is placed on the wall, and the other that is linked to the outside in order to remove heat and moisture from the room while chilling. Multi-zone systems let you to maintain varying temperatures in different rooms or “zones” throughout your home. It might be an excellent alternative if you want to have many grow rooms in your house or company. Mini-split systems are more technically complicated to install and may necessitate the use of a professional installation service in some cases.

Ceiling Mount Air Conditioner

A ceiling-mounted air conditioner is a fantastic choice for spaces that don’t have much storage space. This type of air conditioner operates in a similar manner as mini-split air conditioners, however it is positioned on the ceiling. By utilizing these components, you may be able to optimize your garden area. However, they may necessitate expert installation, which may raise the entire cost of the initial purchase.

Commercial Grade Air Conditioning Unit

A/C units built for commercial usage are ideal for large-scale buildings, but they may also be used in greenhouses. Commercial systems are often bigger in size than other units and are put on top of a grow room facility to maximize space. These will necessitate expert installation and should only be used in buildings that are capable of supporting a commercial-grade air conditioning system.


A high-quality ventilation system will remove hot air from your garden, allowing your plants to remain cool and healthy throughout the summer. Take into consideration investing in industrial-grade inline and oscillating fans to better your control over the environment while also saving money on power costs.

  • Inline fans are located within the ductwork and are responsible for removing hot and humid air from your indoor garden. The use of oscillating fans can improve air circulation by attaching them to grow tent poles or standing them on the ground.

Fans should produce a mild breeze over the canopy area, slightly above and below the plants, to keep the plants healthy and growing. Directly directing fans towards a cannabis plant might increase the likelihood of plant damage.

In grow rooms, fans are a cost-effective investment that may bring in fresh air while also reducing excessive heat and humidity. Fans may be used in conjunction with your HVAC system to reduce your total energy expenses.


As a result of the severe heat, grow rooms may also encounter high levels of humidity, which can make them appear even hotter than they actually are. Dehumidification systems can assist in reducing the likelihood of mold or rot developing. Always opt for a unit that can accommodate a huge area or the entire house. Smaller units do not have the dehumidifying power required for big grow rooms, thus they are not recommended. In addition, get a hygrometer to monitor the humidity levels in your growing environment.

Water Cooling System

Water cooling systems circulate cooled water through most or all of the heat-generating equipment in a building, such as lighting and dehumidifiers, in order to lower the overall amount of heat produced. It is possible to lessen the demand for air conditioners by incorporating a water cooling system into your home’s HVAC system. In order for the water to be cycled via a series of coils throughout your equipment, it must first be cooled by a chiller. Water cooling systems are mostly used by farmers that reside in hotter climates where it is difficult to keep a steady temperature throughout the year.

Factors to Consider When Shopping for Grow Room Air Conditioners

When selecting an air conditioning system for your interior setting, take the following elements into consideration before making your final selection.

Stationary or Portable

Do you require a permanent and large-scale air conditioning machine for a permanent and large-scale space? Is it possible to work with a portable one for your little grow room setting or for your grow tent environment? If you have a temporary garden, a compact and portable unit may be a smart choice because it allows you to transfer your unit whenever you need it.

Cooling Capacity

Consider how much cooling power you will require for your intended production, and then add a buffer on top of your cooling requirements to account for fluctuations in temperature. Expert growers understand that they should always provide a buffer of roughly 20% more than they think is necessary so that they may be prepared for any factors that may change over time. While purchasing a high-quality air conditioning unit may be more expensive up front than purchasing a lower-cost one, you will be better prepared for future development.

Exhaust Hoses

Most indoor growers prefer air conditioning systems with two exhaust hoses over air conditioning units with a single exhaust hose because they provide better air circulation. A single exhaust pipe may remove the cold air from within a room, making the room hotter as a result of the removal. If you reside in a hot climate, a dual exhaust hose is essential for eliminating heated air from your grow room while keeping the cold air in your grow room environment cool.

Self Evaporative

A self-evaporative system, also known as a no-drip unit, can make growth more efficient by eliminating the need to drain the AC’s water on a regular basis.

As a result, the self-evaporative function recycles almost half of the condensed water and utilizes it to cool the inner cooling coils, resulting in more efficient and powerful cooling. Then, using the heated air from the rear, it evaporates the remaining water into the surrounding environment.

Energy Efficiency

Investing in the most energy-efficient capabilities will allow you to optimize your energy use while simultaneously lowering your overhead costs. Look for units that have the Seasonal Energy Efficiency Ratio (SEER) emblem on them that have the highest rating. Fans can help to reduce the energy consumption of air conditioning systems.

Reputation and Reviews

Examine the reputations of brands that have a history of creating high-quality HVAC systems, and read customer reviews to discover how well the equipment has performed for others.

Warranty and Customer Service

When shopping for cooling equipment, seek for money-back guarantees or extended warranties to protect your investment. In addition, make certain that your manufacturer can give high-quality after-purchase services to address queries about installation or problems.

All-In-One Systems

Some air conditioning systems combine numerous functions into a single unit, such as air conditioning, a dehumidifier, and a fan, among others. It is possible to save money and energy by investing in these units rather of purchasing and operating numerous different pieces of equipment.

Grow Room AC Sizing

When putting up an HVAC system, one of the most crucial things you must consider is calculating the appropriate number of British Thermal Units (BTUs) for your grow facility’s requirements. Make sure to take into consideration the quantity of heat generated by your overall lighting arrangement before making your decision. Choosing a unit that does not have adequate cooling power may cause your unit to operate more continually, resulting in energy waste and a shorter device’s lifespan. However, a device that consumes too much power may have a brief cycle, in which case it would heat the room to the necessary temperature before shutting off automatically.

  • It is possible that the frequent on and off cycling will waste energy and reduce the longevity of your machine.
  • BTUs are commonly seen in the following types of air conditioning units: It takes approximately one ton of air cooling capacity per hour to produce 12,000 BTUs.
  • However, it is advisable to include around 20% excess capacity to account for environmental changes.
  • Switching to LED lighting can help to minimize the amount of heat generated by high-intensity discharge (HID) lighting systems such as ceramic metal halide lamps.

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