Cooling Towers for Cannabis Cultivation Facilities
Built for the heat loads, humidity-control demands, and continuous-duty cooling requirements of commercial cannabis cultivation.
The Challenge
The cooling challenge in cannabis cultivation
Commercial cannabis cultivation places some of the most demanding environmental-control requirements of any indoor agriculture operation. Tight temperature and humidity tolerances, intense lighting loads, and 24/7 plant respiration generate sustained heat and moisture that has to be removed continuously — or yields, potency, and crop quality all suffer.
The HVAC and dehumidification systems that maintain those environments depend on reliable heat rejection. Cooling towers are the workhorse that lets you run high-output HID, LED, or hybrid lighting at full capacity without thermal runaway in the canopy. Cultivators face cooling requirements unlike any other commercial environment:
Continuous high heat loads
Grow lights running 12–18 hours per cycle.
Tight environmental tolerances
A few degrees can shift terpene profiles and yield.
High humidity production
Plant transpiration demands aggressive dehumidification.
Strict water chemistry
Reclaimed or treated water with aggressive mineral content.
24/7/365 operation
No tolerance for cooling downtime during flowering.
System Architecture
How Cooling Towers Fit Into Cannabis Cultivation Cooling Systems
In a typical cultivation facility, cooling towers reject heat from chilled water loops that feed the air handlers, dehumidifiers, and process cooling equipment maintaining grow-room environments.
Common configurations
- Open-loop cooling towers paired with water-cooled chillers serving central HVAC plants
- Closed-loop fluid coolers for facilities running glycol or treated process water through dehumidification systems
- Modular cooling tower arrays supporting phased facility buildout as cultivation capacity expands
- Hybrid systems combining evaporative cooling with dry cooling in arid or water-restricted markets
CTS works with cultivation facility designers, mechanical contractors, and grow operations to size and specify cooling capacity that matches the facility’s heat load, lighting strategy, and expansion plans.
Why FRP
Why FRP cooling towers are right for cannabis facilities
Corrosion resistance
Cultivation facilities run treated water, reclaimed condensate, or source water with aggressive mineral chemistry. FRP doesn’t rust, scale, or corrode galvanically — eliminating one of the most common causes of premature tower failure in agricultural and process environments.
Continuous-duty reliability
A flowering cycle runs 8–10 weeks, and a cooling failure during flowering can cost an entire crop. FRP towers are engineered for continuous-duty operation with a service life matched to a 24/7 grow facility.
Energy efficiency
The CTS T-2 counterflow induced-draft design reduces fan horsepower per ton. With lighting and HVAC already the two largest energy expenses, every kWh saved on cooling improves margin on every gram produced.
Scalable for facility expansion
Cannabis operators routinely expand capacity. CTS supports multi-cell modular configurations that let you add cooling in phases without overbuilding upfront.
Lower total cost of ownership
FRP towers routinely deliver 20–30+ years of service vs. 10–15 for galvanized steel. CTS is the only manufacturer to back its towers with a 20-year warranty — lower maintenance, no recoating, no rust mitigation.
The CTS T-2 Counterflow Cooling Tower
Flagship Tower
Well-suited to continuous-duty cultivation loads
The T-2 is our flagship counterflow induced draft cooling tower, well-suited to the continuous-duty cooling loads of commercial cultivation facilities.
Standard features
- Fiberglass reinforced polyester (FRP) shell and structural components
- Counterflow induced draft design for maximum thermal efficiency
- High-efficiency PVC fill media
- Pressurized water distribution system
- Stainless steel hardware
- Drift eliminators with industry-leading efficiency
Optional features
- Low-noise fan packages for noise-sensitive sites
- Multi-cell configurations for phased expansion
- Custom sizing per facility heat load
- Cold-water basin — CTS uses non-corrosive FRP, so a stainless-steel basin isn’t required.
- Vibration switches & capacity controls — available, though CTS fans are balanced and tested before installation, so vibration isn’t a concern.
Comparison
FRP vs. galvanized steel for cultivation cooling
| Factor | FRP (CTS) | Galvanized steel |
|---|---|---|
| Corrosion resistance | Excellent — non-corrosive by design | Moderate — degrades in aggressive water |
| Service life | 20–30+ years | 10–15 years typical |
| Maintenance | Minimal | Routine rust treatment and recoating |
| Water chemistry compatibility | Compatible with most treated and reclaimed water | Sensitive to mineral content and chemistry |
| Lifecycle cost | Lower | Higher |
For long-term cultivation facilities, FRP delivers a clear total cost of ownership advantage.
Applications
Cannabis applications we serve
- Indoor cultivation facilities
- Greenhouse & hybrid greenhouse
- Processing & extraction
- Curing & storage
- Multi-tier vertical grows
- Modular & container cultivation
- Cannabis manufacturing
Engineering Support
Custom sizing, design through operation
Every cultivation facility has a different cooling profile. Lighting strategy, canopy size, dehumidification load, and climate all factor into the right specification. Our in-house team supports your project end to end.
- Heat load and thermal performance evaluations using your facility’s operating data
- Custom sizing and multi-cell configuration
- Formal quotations with technical specifications and drawings
- CAD drawings, cut sheets, and O&M manuals
- Replacement parts for every system we build
FAQ
Frequently asked questions
How do I size a cooling tower for my cultivation facility?
Sizing depends on your total heat load — lighting, dehumidification, plant transpiration, and miscellaneous equipment — plus the design wet-bulb temperature for your location and the water temperature drop your chiller plant requires. CTS engineers run a thermal performance calculation using your facility’s specific design data.
Can FRP cooling towers handle the water chemistry in cultivation facilities?
Yes. FRP is non-corrosive and chemically compatible with most water-treatment chemistries, including the treated, reclaimed, or mineral-heavy water common in cultivation — one of the clearest advantages over galvanized steel in agricultural environments.
How does cooling tower selection affect cultivation yield?
Indirectly but significantly. Yields depend on tight environmental control — temperature, humidity, VPD — which depends on reliable cooling. An undersized or unreliable tower forces operators to throttle lighting or de-rate setpoints, both of which reduce yield.
Can CTS cooling towers scale with facility expansion?
Yes. Multi-cell configurations let operators phase in cooling capacity as cultivation capacity expands, and we can plan an initial installation with future expansion in mind.
Are CTS cooling towers compatible with closed-loop and glycol systems?
Yes. CTS supplies closed-loop fluid coolers and towers compatible with glycol, treated process water, and other closed-loop architectures common in dehumidification and process cooling.
What is the expected service life of a CTS FRP cooling tower?
With proper water treatment and routine maintenance, CTS warrants 20 years on the FRP (fiberglass) casing and cold-water basins, 2 years on all PVC fill, and 1 year on all fan motors, major drive components, and internal moving parts — even under continuous-duty operation.
Can I replace an existing galvanized cooling tower with FRP without major infrastructure changes?
In most cases, yes. CTS provides replacement towers sized to match existing footprints, basin dimensions, and piping connections. Our engineering team reviews your existing installation and recommends a drop-in or modified replacement.
What is the typical lead time for a CTS cooling tower?
Lead times vary by configuration. Standard configs typically ship within several weeks of order; custom or larger configs may take longer. Contact us with your timeline and we’ll provide a firm delivery schedule with your quote.
Comparison
Request a quote for your cannabis cultivation cooling tower
Whether you’re building a new facility, expanding an existing operation, or replacing aging cooling equipment, our engineering team is ready to spec the right cooling tower for your cultivation environment.
In-house engineering · Manufactured in Macon, GA