Water-Cooled Indoor Cultivation HVAC Equipment
Stable, Energy-efficient, Precise Climate Control Solution
Built for Commercial Grow Operations
Get a QuoteWhat is Water-Cooled Grow Room HVAC System
A water-cooled grow room hvac system is a climate control solution designed specifically for grow rooms. Instead of using standard air-cooled condensers, it utilizes water as the heat transfer medium to regulate temperature and humidity efficiently. This system typically relies on water chillers or dry coolers to provide cooling capacity, circulating chilled water to maintain optimal growing conditions without requiring outdoor condenser units.
Pros of Water-Cooled Indoor Cultivation HVAC Equipment
Quieter Operation, Less Noise Pollution
Air-cooled systems rely on fans and compressors to dissipate heat and can be noisy in operation, especially for grow rooms or grow facilities in urban areas where noise pollution may occur. Water-cooled HVACs are cooled primarily by water and run more quietly without large fans.
Higher Energy Efficiency & Lower Operational Costs
Water is more efficient at transferring heat than air, meaning that water-cooled systems can transfer heat faster and more efficiently, thereby using less energy for the same cooling demand. This characteristic makes water-cooled HVAC more energy efficient especially for large grow rooms, and can effectively reduce long-term operating power costs.
More Stable Performance in Extreme Climates
The cooling efficiency of the air-cooled system is largely affected by the ambient temperature.
Water-cooled systems are able to operate stably in both hot summers and cold winters due to their primary reliance on water cooling, which is unaffected by outside air temperatures.
Ideal Applications
In modern growing and production environments, precise control of temperature, humidity and air quality is a core element in ensuring healthy plant growth and high productivity. However, not all spaces are suitable for a universal environmental control solution. Different site conditions, climatic characteristics and growing needs often require more suitable indoor cultivation hvac equipment to achieve stable operation. Water-cooled Grow Room HVAC systems have become the ideal solution for many scenarios due to their unique cooling mechanism and high performance.
Key Functions
Water-cooled indoor cultivation hvac equipment utilizes highly efficient water-cooled circulation technology to provide more precise and consistent climate control. Altaqua GWS Series Grow Room HVAC System delivers precise dehumidifying, heating, and cooling for optimal grow room conditions. Optional features like WiFi control further enhance efficiency and customization.
Standard Functions:
Optional Functions:
GWS Series Grow Room HVAC System Capacity
Altaqua GWS Series Grow Room HVAC System is an advanced water-cooled climate control solution designed to meet the rigorous demands of commercial grow rooms. It utilizes water as the heat transfer medium, reducing reliance on refrigerants while ensuring consistent temperature and humidity regulation.
GWS-20D
Air Handling: 5,190 to 5,600 CFM
Refrigeration Capacity: 19.3 Tons
Moisture Removal: 11.1 Gallon/hr
GWS-30D
Air Handling: 7,860 to 8,490 CFM
Refrigeration Capacity: 28.9 Tons
Moisture Removal: 16.5 Gallon/hr
Competitive Advantages
All-in-one Climate Control
Unlike traditional systems that rely on air conditioners with dehumidification as a secondary feature, our system prioritizes humidity control. During the day, it dehumidifies efficiently while keeping temperature at the desired level. At night, when plants continue transpiring but cooling demand decreases due to the absence of grow lights, the system operates in dehumidification mode with air conditioning, ensuring stable target temperature and humidity levels.
Using Dew Point for More Precise Humidity Control
In traditional relative humidity (RH) control modes, humidity regulation relies on air temperature fluctuations. For example, when air temperature drops, the relative humidity rises even if moisture content remains constant, which may lead to misleading humidity measurements and compromise control accuracy. In contrast, dew point control is more scientifically robust, as it directly measures the actual moisture content in the air, unaffected by temperature variations. This enables growers to precisely manage Vapor Pressure Deficit (VPD), promoting better water and nutrient uptake in plants, thereby improving yield and quality.
Accurate Control from Integrated Electronics
The use of Austria-based E+E brand humidity and temperature sensors allows real-time monitoring of water vapor content in the air, maintaining a fluctuation range of ±2.5% RH relative to target values for precise humidity adjustments. E+E sensors also deliver exceptional stability and reliability, sustaining measurement accuracy within ±0.5 °F during long-term operation. Even in environments with significant humidity fluctuations, these sensors ensure data accuracy and provide stable system performance.
Multi-System Redundancy Design
In commercial cultivation facilities, HVAC system failures can lead to severe losses. Thus, multi-system redundancy design is a critical feature for HVAC systems in commercial grow rooms. Redundancy ensures that backup systems immediately take over if the primary system fails, preventing environmental fluctuations caused by equipment downtime. This design significantly reduces potential losses from malfunctions and safeguards continuous healthy crop growth. Additionally, modular redundancy simplifies system maintenance and upgrades, enabling flexible adjustments during expansions or optimizations without disrupting normal operations.
WiFi Control Provides Easy Access & Management
WiFi connectivity enables 24/7 real-time internet-based monitoring and adjustments. The system is typically equipped with real-time alert functionality, sending immediate notifications to managers when abnormal temperature or humidity fluctuations occur, ensuring prompt issue resolution. These features allow growers to maintain stable environmental conditions effortlessly while minimizing crop losses due to equipment failures or environmental anomalies.
Reliable EC Fan Motors Reduce Energy Costs
Ebm-papst’s GreenTech EC centrifugal fans automatically adjust airflow speed based on grow room temperature, humidity, and air pressure requirements. This intelligent regulation ensures uniform air circulation, prevents condensation buildup or uneven humidity distribution, and significantly enhances energy efficiency. EC fans consume far less energy than traditional fans, delivering powerful airflow while reducing power consumption and operational costs.
Energy-Saving Technologies
When multiple compressors operate simultaneously, they generate substantial heat. Traditional HVAC systems directly release this heat through condensers. However, Altaqua GWS Series Grow Room HVAC System utilizes a reheater to recover a portion of the heat. This recovered heat is used to reheat dehumidified air, which is then returned to the grow room to prevent excessively low temperatures and maintain optimal growing conditions. Another portion of the heat can be recycled into the circulating water system to supply heated water required for the grow room.
During grow room operation, moisture in the air condenses into water during the cooling coil and dehumidification processes. Traditional HVAC systems typically discharge this condensate directly. In contrast, Altaqua GWS Series Grow Room HVAC System collects the condensate into drainage pipes. After proper treatment, this water is reused to replenish the cooling tower or cooling water circulation system, improving overall water resource utilization.
Real Feedbacks from Partners
They say good things take time so huge thanks for your patience! We're excited to share that we have now commissioned the first of our new cultivation rooms and the new facility has been licensed.
The second flower room will come on line in the next few weeks to stagger harvests. These young ladies will be flipped to flower by the end of this week! They are looking very happy in their new environment!
Yes, I understand. You have a built-in dehumidifier with good performance. And you use quality components.
I have worked with your equipment on another farm and I am familiar with this system.
Premium cannabis HVAC, I can personally vouch will be buying many more 250kw systems in the future - Aussie cannabis growers.
We currently just hooked up the air handler and split condensers for Andy. Your guys product is very well built.
Just at this time Andy's job is pretty much the only style application we would be able to use your product on right now. We will always keep you in mind moving forward.
I've shown off my unit to several in the cannabis industry here and they have all been impressed. They all really like the unit.
Thanks again Caroline for all your help with getting my personal unit up and running. Your customer service and technical assistance from your engineers has really impressed me and is a big part of why I would like to help your product gain traction in the US.
Don’t get me wrong your machine is very well built and everyone is impressed with the quality. That is the reason I want to import for resell
I just wish to introduce you to my friend who is looking at fitting out his cultivation facility with HVAC.
I believe he may have already reached out to someone via your website but I wanted to put him in touch with yourself as you looked after us so well.
your team does amazing work ... keep it up and good luck at the show
They produce true quality systems, says an indoor grower of 20 years
Hi candy i make the install of the unit works good i need to make this week the test and show the clients
I make a order i think in 2 weeks
we purchase your product for grow rooms in Australia. amazing quality and service. amazing custom options and design ... build quality is amazing. Lori and Vicky have helped me so much, we love alto.
Can you make your unit under different name with CSA certificates and give me distribution rights for Canada
Some people may contact you , I showed your unit to some growers and they like it.
yes they work great, easy install and lots of customizable features.
We just received the GW10 today.
All is good arrived without damage, is already nice. We are to test the machine, and all the basic function seams working well.
Yes three weeks. So far your machine works very well
Industry leading components, installed with superior professionalism
We have an Altaqua! We love it.
We absolutely love your systems , such tidy gas work and A++ electrical work.
Professional Supports
In grow room environmental control, precise temperature and humidity management is critical. Choosing a suitable water-cooled Grow Room HVAC system not only impacts the stability of the growing environment but also directly affects energy consumption costs and crop yields. We understand that every cultivation project has unique requirements. Therefore, we provide not only comprehensive technical support for existing clients but also free system sizing proposals and professional consultation for all potential customers interested in our products, helping you identify the most compatible indoor cultivation hvac equipment.
If you are seeking a high-efficiency, reliable water-cooled Grow Room HVAC solution or have any questions about our products, please contact our team anytime. We offer free system recommendations, in-depth technical explanations, and tailored support to help you build the optimal environmental control system, ensuring your grow room maintains peak performance at all times.
Get Started With A Free Proposal
Let’s work together to design a climate control solution that fits your grow room needs and budget. Contact us now for a free, personalized proposal.