Altaqua Grow Room Hvac System

All in One Grow Room Climate Solution
Humidity, Temperature, Airflow, Co2, …

Altaqua Ga-sereis grow room hvac system

Altaqua Ga-series commercial grow room hvac system provides the integrated intelligent control of temperature, humidity, and airflow conditions to create the perfect climate condition for cannabis grow, eliminating the need to purchase a separate air conditioner and dehumidifier. This integrated commercial grow room hvac design supplies the biggest flexibility for all kinds of cannabis grow facilities. Intelligent commercial cannabis hvac systems for grow rooms are the key factor to maximize the cannabis grow quality and quantity. Just feel free to get a free hvac proposal for your projects.

Grow rooms


Indoor farming

Indoor agriculture

Other applications

Why need grow room hvac system?

Global cannabis cultivation market size is expected to reach USD 358.8 billion by 2027, expanding at a CAGR of 14.3% from 2020 to 2027 according to the latest report. More and more countries and states are going to legalize cannabis for medical use and recreational use. Market demand for cannabis continues to increase and more and more growers are going to expand businesses by adding new facilities or augmenting existing ones. In order to have stable yield and much better quality cannabis, more and more growers choose the grow room for cannabis indoor farming, which supplies a lot of advantages. Cannabis indoor grow provides growers a great balance between the operation cost and maximizing yield, which has become an increasingly popular option for cultivators.

Cannabis grow room advantage

Healthily grow year-round

Safe and hygienic growing

Ability to create new strains

More yield and better quality

Total control growing conditions

Much higher revenue and security

Safety from bugs, pests, and animals

Easy to control pollination of cannabis

10 key parameters of cannabis grow health and vitality

HVAC, lighting, water and nutrients are the main inputs that determine both the growing cost and prolific yield. It’s easy to control elements for cannabis growing such as light, soil, nutrients, and water. But it is difficult to control the air humidity, temperature, CO2 and airflow, etc., which also affects the cannabis grow quality and yields very much.







CO2 level

Air humidity

Air temperature

Soil temperature

Plant diseases

Plant diseases are a recurring problem with grow room cannabis production. Cannabis plants are especially subject to foliage diseases due to the high humidity and tightly packed growth. The common cannabis diseases are powdery mildew and gray mold. It is necessary to introduce the IPM program that includes monitoring, physical controls, resistant species, biopesticides, and least-toxic chemical controls. The physical controls include temperature, sanitation, ventilation, air filtration, and irradiation with UV-C light, etc.

Powdery mildew and botrytis are encouraged by humidity, which thrives in high humidity (>90%) and cool temperatures (60°F) at night, followed by low humidity (40% to 70%) and hot (80°F) day time temperatures. Keeping temperatures and humidity stable from fluctuating by heating at night and dehumidifying all around the day can effectively reduce the incidence of disease, which is the main job of Altaqua grow dehumidifier hvac system.

Medical cannabis grow became legal less than thirty years, and recreational cannabis is not even five years old. So most of the indoor growers still lacks good practices and have little knowledge about the interplay between grow room hvac systems and the science of cannabis growing. Altaqua grow room hvac system is specially designed to help you grow cannabis up to purity standards and yield a consistent crop with our combination of experience in hvac system design, indoor horticulture, and the emerging cannabis industry.

Why not choose air conditioner or dehumidifier instead of grow room hvac system?

Cannabis has a unique optimal growing profile, and temperature, relative humidity, CO2 assimilation and air cleanliness all need to be optimized in order to promote plant growth and vitality. So it requires a unique hvac cultivation facility design, no matter the air conditioner or traditional dehumidifier can not optimize these four core components and help to grow to your full potential.


CO2 level

Relative humidity

Air cleanness

Air conditioner

Air conditioner is designed to control the temperature with dehumidifying as an afterthought, which gets the coils cold enough to lower the air temperature, but not cold enough to condense water out of the air. While sensible demands in the space are being easily met, humidity levels are out of control. A dehumidifier is also one-dimensional for dehumidifying and does not deliver the cross-functional benefits of environmental control.


It is impossible to achieve optimized growing conditions is impossible by using the independent units to heat, cool, and dehumidify in an unorganized system. That will result in high operating costs and can’t help the plants to reach their maximum metabolic rates, and sometimes even facing the risk of contamination by molds and mildews when humidity cannot be controlled.

The indoor cannabis grow room is a vibrant living ecosystem, with energy pouring into the plants from lights and water and pouring out from the plants in the form of water vapor. Without optimal vapor pressure deficit between the cannabis and the environment, photosynthesis suffers and the risk of pest and pathogen infection increases. In order to deal well with the latent heat and sensible heat for better transpiration of cannabis, we combine dehumidifying and air conditioning into one integral unit, which realizes a consolidated control system for grow room temperature, humidity, CO2 enrichment and ventilation.

Working principle

This integrated hvac system succeeds to deliver precise grow conditions and recycles the heat created by the dehumidification process to efficiently reheat the cold discharge air and keep the space temperature consistent. It makes up for the shortcomings of separate air conditioners and independent dehumidifiers, such as uneven air distribution forming microclimates and condensation providing the opportunity for pests and pathogens to thrive, which also reducing capital outlay and streamlining team member training.

Comparing with the limitations of the traditional hvac products, like the lack of flexibility, scalability and redundancy, this intelligent alternative hvac system is expected to become the leading unitary approach across North American cannabis grow market. It can commence with the minimum capacity for start-up and then add more units in the future as required, which doesn’t need to be built to full size for day one, especially suitable for some projects that the facility will be in partial occupancy for a long time.

How about Altaqua grow room hvac system?

Investment for best possible air environment means much tighter temperature and humidity control for each cannabis growing phase to maximize its vitality and chemical profile. It reduces energy consumption and risks of pest and pathogen contamination, which maximizes the potential of grow room. As a company with expertise in both hvac systems and indoor farming, we design and integrate dehumidifying with air conditioning and more functions into one unitary hvac system, to offer the perfect solution to secure and control the environment throughout the cannabis life cycle.

It is a durable and reliable precise indoor climate control equipment. It is designed and built for professional cultivation with the best quality components, maximize energy efficiency while achieving the desired conditions, which results in a lower operating cost to the grower. It can modulate and control the temperature and relative humidity set points together, which adjust the vapor pressure deficit to maintain ideal photosynthetic conditions for cannabis grow. It is a complete all-in-one hvac system, which create the perfect cannabis grow room condition by providing the following adequate control function.

Relative humidity control

maintain ideal photosynthetic conditions

Air temperature adjustment

maintain ideal photosynthetic conditions

Vapor pressure deficit improve

optimize humidity and temperature together

CO2 enrichment control

effectively stimulate cannabis growth

Room pressure control

best EC fan motor supply variable air flow

Biosecurity level maintain

reduce risk of pest or pathogen infection

Lighting stage control

provide unprecedented level of control

Besides the above introduction, more custom functions are able to develop for you by our engineers’ team. Just feel free to contact us, and we will let you know more details.

Temperature and humidity set-points for each Cannabis grow stage

Mother room

For genetic bank to preserve cannabis varietals.

Temperature: 75℉
Relative humidity: 60%

Clone room

For cuttings taken from plants in the vegetative room.

Temperature: 80℉
Relative humidity: 90%

Vegetative room

Once the cuttings have established a healthy root system, they are moved here to grow prior to flowering.

Temperature: 80℉
Relative humidity: 70%

Flowering room

Fully established plants will be moved from the veg etative room here, and reduce the photoperiod to 12 hours and the plants will begin producing flowers.

Temperature: 70-80℉
Relative humidity: 40-60%

Curing room

Once the cannabis flowers are fully mature, they are cut down and moved here. Special care is needed to preserve terpenes with the help of right temperature and light.

Temperature: 65℉
Relative humidity: 45%

Trim room

Where fan leaves around and in between the cannabis flower are removed. And the trimming can take place before or after drying.

Temperature: 75℉
Relative humidity: 50%

Packaging room

Used to individually package dried cannabis flowers for sales.

Temperature: 75℉
Relative humidity: 50%

Altaqua grow room hvac system will provide accurate humidity and temperature control together, and you can create the best climate condition for the above grow rooms to maximum the cultivation yields. Just contact us for more details.

Altaqua grow room hvac advantages

Mitigate plants risk: protect and maximize the genetics of your plants

Increase revenue: enhance yields & harvest premium cannabis product

Fast return on investment: only take 1~3 years according to projects size and investment

Decrease use of fungicide and pesticide: promote a sustainable, greener grow environment

Custom design available: designed with cannabis vitality in mind to create the ideal environment

Optimize grow space: well-controlled consistent climate conditions across the entire plant canopy

Save energy cost: recover energy technology work with high efficient EC fan motors and compressors

How is the Altaqua grow room hvac system built

Altaqua grow room hvac is designed with flexibility for medical & recreation cannabis cultivation with the best components proven to perform well in the grow room environment, utilizing the latest mature refrigeration technology. It consists of three main systems, a refrigeration system, a ventilation system and an automatic electric control system.

Energy-saving variable EC fan motor ventilation system

Low static quiet operation and minimize operational costs

Energy recovery refrigeration cooling and heating system

Fast and smooth startup to peak performance maximize VPD for grow

Users-friendly precise automatic electric control system

Designed for commercial use and deliver efficient smoothest control

Build the perfect with the best parts

Insulation sandwich panels avoid cool energy lost

Stainless steel drain pan and 3/4 inch drain coupling

Reheat condenser delivers air near room temperature

Precise Vector temperature and humidity sensors used

Robust aluminum cage structure on channel steel base

Gas sensors and protectors smooth the refrigeration cycle

Easy replace self-sealing air filter protects air vital components

Danfoss expansion valves and Emerson refrigeration parts used

Schneider contactors and breakers protect system from damage

Siemens PLC controller enables accurate settings and diagnostics

Ebmpapst/Eziehl-Abegg EC fan motors very powerful air circulation

High-quality powerful compressors from Bitzer, Copeland & Panasonic

Supported by international famous partners

Well-organized production by the ISO9001 management system

Precise structure assembly
Artwork-like copper pipework
No leakage carefully welding
24 hours nitro gas pressure test
Sophisticated electric connection
System vacuumed and gas injection
100% operation test before delivery
Customized damage-proof packings

Installation, operation, maintenance of grow room hvac system

Easy installation and debug

  • Duct work connecting according to location
  • Condenser connecting with copper pipes
  • Electric wire connecting with power supply
  • Drain piping connecting for condensing water

Easy control with touch screen

  • Turn on the system and self-check run automatically
  • Choose operation mode between Auto and Manual
  • Set the target air temperature and relative humidity

Easy maintenance for long term use

  • Clean the filters every three months
  • Clean the outdoor condenser coils and fans
  • Clean the dust inside the electric box every year

Capacity range of Alaqua grow room hvac system

Altaqua grow room hvac system combines compact design and best quality parts in capacities ranging from 4 to 61 tons, providing dehumidifying, air conditioning, air heating, adjustable airflow, optional CO2 enrichment and other custom climate control functions.

  • Refrigeration capacity: 5 ~ 72tons
  • Removes water per day: 480 ~ 6,800 pints
  • Delivers variable air flow: 1,500 ~ 20,000 cfm
  • Power supply: 115/230/380/415/580/615Volt, 60/50Hz
  • Two condenser reheat coils for both cooling and heating functions

We offer a complete range of grow-optimized dehumidifier hvac systems for any size grow rooms, grow warehouse, greenhouses, and other indoor farmings, help growers have the precise climate controls for the whole cultivation process smoothly and efficiently. For more detailed information, please feel free to contact us.

Reliable service for Altaqua grow hvac system


We understand the cannabis grow is the very serious investment instead of a hobby. Besides the quality product, you need to handle all the construction and operation with your contractors and consultants.


We are open to work with you and all your partners to customized the hvac system for your indoor farming and other projects. And the service will begin from the design phase to the ultimate solution.

7 x 24

We keep the promise to supply the unrivaled support by the 7×24 service to help identify the issues and direct on every steps, from design, production, test, delivery, installation, debugging, operation and maintenance.

Custom comments on Altaqua grow room hvac

We believe that the companies that listen to their customers grow faster, and so we always appreciate it very much for what our clients say. Customer feedback is the powerful guide that can give us crucial insights into every part of our products, and help us to improve our product to perfect step by step.


So far your grow room hvac machine works very well. I have confidence in my growing business now …

Gregory Gibbons


Your guys’ product is very well built, and just at this time, we decided to use your product for following jobs …

Colum Tinley


Can you make your unit under a different name and give me the distribution right for the Canadian market …

Gerald Patzsch

Projects equipped with Altauqa grow room hvac system

We’ve helped commercial indoor farming facilities in the United States and Canada, where our quality hvac systems are assisting our customers to control the humidity, temperature and air quality in their indoor growing facilities. And we are proud that they all love working with us to solve their indoor framing climate control problems.

Choose the right size of grow room hvac syetem

Grow room hvac system won’t be right if it is too big or if too small, and we need to choose the right sizing with enough capacity to manage the grow environment and meet the production goals without a huge electricity bill. So how to figure out which model Altaqua grow room hvac system for your project?

First, we must understand that the cannabis grow room is a complex environment hosting many living organisms, including plants, people and both bad and good microbes, as well as many processes that are constantly adding or removing energy from the overall ecosystem. Then, we need to consider the following factors of your grow room.

Grow room five elements

Energy balance

Heat is generated by working employees, grow lights, fan motors, water pumps, CO2 burners, and other equipment running. Understanding how much energy will be in the system is key to calculate the capacity hvac system needs to balance the equation.

Plant density

A dense canopy pairing with poorly circulating systems will create microclimates that feature higher temperatures or relative humidity, which is also an important factor to decide how much capacity your grow hvac system needs.

Daily watering

Water transports nutrients through a plant and gives it a turgor. Almost all of the water you give to a plant’s roots comes out as water vapor via transpiration. As the plants grow and add biomass, more humidity will be created by the plants. It is important to know the amount of water needs to be removed from the atmosphere.

Project Layout

Different grow rooms provide different floor square footage, walls, ceiling feet high, and grow racks. In order to maintain the unique consistent temperature and humidity level for grow room, it needs to build the right duct-work and airflow layout to deliver air and remove moisture from the right spots to ensure microclimate is eliminated.

Future expand

Different grow rooms provide different floor square footage, walls, ceiling feet high, and grow racks. In order to maintain the unique consistent temperature and humidity level for grow room, it need to build the right duct-work and airflow layout to deliver air and remove moisture from the right spots to ensure microclimate is eliminated.

Just contact us, and our engineers will help you choose the right size grow room hvac system, which provides a good balance between the capital costs to maximize profits and optimize long-term expenses. During the last 12 years, we’ve created commercial-grade environmental controls proven to work, our teams are ready to start an engineered conversation on HVAC options for optimizing cannabis growth within your established budget and intended objectives.