- 1x HE-20 Drum Fan
- 1x ECS-7 Cable Set
- 1x ECS-9 Cable Set
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TrolMaster Aero-Fan HE-20 20" High-Velocity Circulation Fan
starting from 0% interest financing from
/mo.
- 3,986 CFM max airflow from a 6-blade motor
- 100 to 277VAC auto-sensing power input
- Three-year warranty covering mechanical and electronic components under normal operating conditions.
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VOLUME PRICING
Commercial & Bulk Purchasing
We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
- You are eliminating stagnant air in your facility because traditional fans require complex Variable Frequency Drive hardware.
- You are upgrading your airflow setup because you need an auto-sensing power input for residential and commercial circuits.
- The 6-blade motor delivers massive airflow to eliminate hot spots and maintain uniform canopy conditions.
- The IP66-rated housing is completely dust-tight and resistant to powerful water jets.
- Growers who installed these in their rooms report that they no longer deal with humidity stratification near the floor.
- Users who swapped to these digital-controlled fans say they saved hours on installation since they could skip the VFD wiring.
TrolMaster Aero-Fan HE-20 20" High-Velocity Circulation Fan
Eliminate stagnant air and microclimates in your facility with the TrolMaster Aero-Fan HE-20 Ventilation Fan. High-velocity circulation is critical for maintaining a healthy canopy, but traditional drum fans often require expensive Variable Frequency Drives (VFD) and complex wiring. The HE-20 changes the game by using a direct digital signal for speed control, removing the need for external VFD hardware and simplifying your ventilation fan setup.
Built to withstand the most demanding environments, this 20-inch fan features an IP66-rated housing that is completely dust-tight and resistant to powerful water jets. With a 6-blade motor delivering a massive 3,986 CFM, it provides the consistent airflow needed to prevent humidity stratification and hot spots. Whether you are operating on standard residential power or commercial 277V circuits, the auto-sensing power input ensures seamless integration into any professional grow room using TrolMaster environmental controllers.
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What's Included
Features
🚫
No VFD Driver Required
Adjust fan speed via direct digital signal, eliminating the need for costly and complex Variable Frequency Drives.
💨
3,986 CFM High-Volume Airflow
A powerful 6-blade motor delivers massive airflow to eliminate hot spots and maintain uniform canopy conditions.
🛡️
IP66 Rated Housing
Fully dust-tight and water-jet resistant, ensuring reliable performance in humid and high-intensity grow environments.
🔋
100–277VAC Auto-Sensing
Compatible with both residential and commercial power configurations without the need for manual voltage adjustments.
🎛️
Native TrolMaster Control
Includes ECS-7 and ECS-9 cables for seamless integration with Green-X, Hydro-X, and Tent-X control systems.
Specifications
| Specification | Value |
|---|---|
| Operating Voltage | 100–277VAC, 50/60 Hz |
| Rated Current | 3.0A Max |
| Rated Input Power | 300W Max |
| Number of Blades | 6 |
| Max Airflow | 3,986 CFM |
| Max Static Pressure | 110 Pa |
| IP Rating | IP66 |
| MTBF | 40,000 Hours @ 68°F (20°C) |
| Dimensions | 12.20 × 22.05 × 23.39 in |
| Net Weight | 23.15 lbs (10.5 kg) |
Support & Manuals
FAQs
What does "no VFD driver required" mean, and why does it matter?
Traditionally, variable-speed control of high-velocity fans requires a Variable Frequency Drive — a separate piece of hardware that adds cost and wiring complexity. The HE-20 adjusts its speed via direct digital signal from a TrolMaster controller, making VFD hardware completely unnecessary and simplifying the overall installation.
How does the HE-20 differ from the HE-20M Pro Model?
The HE-20 accepts a wider voltage range (100–277VAC) compared to the TrolMaster Aero-Fan HE-20M Ventilation Fan, making it better suited for residential power. While the HE-20M offers higher 4,980 CFM airflow and an all-metal housing, the HE-20 includes broader cable connectivity (ECS-7 and ECS-9) for immediate ecosystem integration.
What are the ECS-7 and ECS-9 cables included with the HE-20?
These are specialized TrolMaster connection cables that allow the HE-20 to communicate directly with environmental controllers. Including both ensures compatibility across different controller generations within the Green-X, Hydro-X, and Tent-X ecosystems.
Can the HE-20 be used without a TrolMaster controller?
Yes, the HE-20 can operate as a standalone circulation fan independently of a controller. The included cables are specifically for those who wish to utilize automated speed management and scheduling through the TrolMaster app and hardware.
What does the IP66 rating mean for grow room use?
IP66 indicates the fan is fully protected against dust ingress and powerful water jets. In a cultivation setting, this means the fan can withstand high humidity, irrigation overspray, and pressure cleaning during facility sanitation cycles.
What is the expected lifespan of the HE-20?
The HE-20 is rated for a Mean Time Between Failures (MTBF) of 40,000 hours at 68°F. This represents over four years of continuous 24/7 operation, far exceeding the lifespan of standard consumer-grade fans.
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