Schaefer Versa-Kool HAF Barrel Fan - 20in

Quiet Variable-Speed HAF Circulation with a Patented Guard Design - 20in

Stagnant air in a grow room or greenhouse lets humidity pool in corners, temperatures drift unevenly across the canopy, and CO2 deplete faster near actively photosynthesizing leaves. The Schaefer Versa-Kool HAF Barrel Fan moves air in a continuous horizontal racetrack pattern to break up those pockets, using a patented guard design that pushes more air than a standard fan of the same size, at very low noise levels.

At 20in, this fan draws 3.8A at 115V / 1.9A at 230V (60 Hz), suited to larger grow rooms and greenhouses needing more substantial circulation. Optional wall or ceiling mounting hardware, sold separately, lets it be positioned exactly where airflow is needed most.

Key Features & Benefits

• Patented guard design — moves more air than a standard circulation fan of the same diameter, for stronger cooling and circulation performance.
• HAF horizontal racetrack airflow — distributes heat, humidity, and CO2 evenly around the growing area rather than in short bursts like an oscillating fan.
• Variable speed control — dials airflow from a gentle breeze up to powerful circulation to match the room's needs.
• Very low noise operation — runs quietly enough that it does not disrupt work or require hearing protection in a commercial facility.
• Dual voltage, 115V/230V — fits standard or high-voltage facility electrical systems without a separate model per voltage.

Who Should Use This

Greenhouse operators, indoor cultivators, and commercial growers who need quiet, consistent horizontal air circulation across a multi-row room or greenhouse, without stagnant pockets or cold spots, are the right fit for this fan.

About Pinnacle Climate Technologies

Pinnacle Climate Technologies builds the Versa-Kool HAF fan line as part of its broader Schaefer ventilation portfolio, manufactured out of the company's Sauk Rapids, Minnesota facility since the 2015 merger of Schaefer Ventilation and Pinnacle Products International.

Frequently Asked Questions

How is HAF airflow different from a standard oscillating fan?

HAF fans create a continuous horizontal racetrack loop that circulates air around the entire growing area, distributing heat, humidity, and CO2 evenly. An oscillating fan only covers a limited arc during each sweep, leaving pockets untouched between passes.

Can I control multiple Versa-Kool fans from one controller?

Yes, the Schaefer Manual Variable Speed Control, sold separately, is built to manage compatible single-speed Schaefer fans. It lets several units be adjusted together from a single control point.

Do I need professional installation for wall or ceiling mounting?

No, wall and ceiling mounting can typically be completed with standard tools by anyone comfortable with basic electrical and hardware work. Always follow the mounting hardware instructions and local electrical codes when connecting to power.

How do I choose between fan sizes for my space?

A larger-diameter fan moves more air per revolution, so bigger rooms or greenhouses generally call for a larger model to maintain adequate circulation. Schaefer also offers an 8in Deep Guard model for tighter spaces or supplemental airflow where a full-size barrel fan is not needed.