Vostermans Ventilation MultiFan V-FloFan – 265/460 Volt

The Vostermans Ventilation MultiFan V-FloFan is a commercial-grade circulation fan engineered for greenhouse environments. Operating on 265/460-volt power, it delivers vertical airflow directly at plant level to create a uniform microclimate, reduce humidity pockets, and improve heat distribution across the crop canopy. It mounts easily in standard greenhouse structures and is designed for long-term, low-maintenance operation across a wide range of crops.

Vostermans MultiFan V-FloFan – 265/460 Volt Specifications

Key specifications for the Vostermans Ventilation MultiFan V-FloFan 265/460-volt model. Voltage class is indicated in the product title; confirm your facility’s supply voltage before ordering. Note that power cords are not included with part numbers 737502 and 737504 — source a compatible cord rated for your installation voltage.

Specification	Value
Brand	Vostermans Ventilation
Model Line	MultiFan V-FloFan
Voltage	265 / 460 Volt
Weight	58.1 lb (26.4 kg)
Airflow Direction	Vertical (downward toward crop canopy)
Supplier SKU	VOST6D40K6M81160
Power Cord Included	Not included for part #737502 and #737504
Primary Application	Commercial greenhouse air circulation

Why Choose the Vostermans MultiFan V-FloFan

The V-FloFan is built around a straightforward problem in large-scale greenhouse production: air in a still greenhouse stratifies, leaving humidity high at plant level and heat concentrated near the roof. Horizontal fans help, but they create uneven airflow across wide growing bays. The V-FloFan addresses this with a vertical airflow pattern that pushes air directly down through the canopy, reaching the zone where humidity and stagnant air cause the most damage.

Because the airflow is directed at crop level rather than across the greenhouse laterally, every plant in the fan’s coverage zone receives consistent air movement. This uniformity matters for disease prevention: high humidity pockets on leaf surfaces encourage fungal problems, and a fan that leaves some areas of the bench still-aired is worse than no fan at all. Growers who have switched to V-FloFans in wide-span houses typically report more even canopy conditions across the full growing bay.

The 265/460-volt power rating makes this model appropriate for facilities with three-phase or higher-voltage single-phase supply — common in commercial greenhouse operations, warehouse grows, and large indoor farms. Running equipment at higher voltage generally reduces line current draw for a given power output, which can simplify wiring in large facilities with many fans on a single circuit.

• Vertical airflow to crop level: Unlike lateral wall fans, the V-FloFan directs air straight down through the canopy, eliminating humidity pockets at plant level where disease pressure is highest.
• Optimized heat distribution: Circulating air from the warmer roof zone downward reduces the temperature differential between ceiling and crop level, improving overall climate uniformity inside the greenhouse.
• Energy-efficient design: Vostermans designs the MultiFan line for continuous-duty commercial operation with an emphasis on minimizing power consumption relative to airflow output.
• Wide crop compatibility: The V-FloFan is suitable for vegetables, cut flowers, potted plants, herbs, and cannabis — any crop grown in a commercial greenhouse or large indoor facility.
• Straightforward mounting and maintenance: The fan is designed for installation in standard greenhouse structures and does not require specialized tools or complex rigging to mount or service.

Best Uses for the Vostermans MultiFan V-FloFan

The V-FloFan is sized and rated for commercial and semi-commercial applications where airflow quality and climate uniformity are production variables, not afterthoughts. Below are the environments and situations where it performs best.

• Wide-span commercial greenhouses: Gutter-connected and single-span houses with wide growing bays benefit from overhead vertical fans that provide uniform downward airflow across the entire bench width, something perimeter or end-wall fans cannot reliably deliver.
• High-humidity crop production: Crops like tomatoes, cucumbers, peppers, and leafy greens grown in tightly spaced rows generate significant transpiration. The V-FloFan’s downward airflow disrupts the humid boundary layer around leaves, reducing conditions favorable to Botrytis, powdery mildew, and other humidity-driven diseases.
• Three-phase commercial facilities: Operations with 265/460-volt three-phase electrical infrastructure can deploy this model directly without step-down transformers or voltage conversion, keeping installation straightforward and efficient.
• Large indoor grow rooms: Warehouse-scale cannabis, vegetable, or herb operations that require consistent canopy-level airflow across wide growing beds can use the V-FloFan to supplement or replace lateral circulation fans.
• Multi-zone climate management: Facilities using zone-based environmental controls can position V-FloFans over individual growing bays to maintain independent microclimates within a shared structure.
• Post-harvest and propagation areas: The gentle, even airflow is appropriate for propagation benches where seedlings and cuttings need air movement without direct drafts that could desiccate tender plant material.

V-FloFan vs Similar Overhead Circulation Fans

The V-FloFan competes primarily with horizontal overhead HAF (horizontal air flow) fans and with destratification fans typically used in warehouses and barns. Understanding how they differ helps in deciding which type fits a given growing environment.

Standard HAF fans are mounted horizontally around the perimeter or end walls of a greenhouse and push air in a circular pattern parallel to the floor. They work well in narrow single-span structures where the circular loop is short enough to stay coherent, but in wide-span houses the airflow loses velocity before reaching the center of the bay. The result is good air movement near the walls and sluggish air in the middle of the growing area — exactly where many crops are concentrated.

Warehouse destratification fans are ceiling-mounted and push warm ceiling air down, but they are typically designed for large open spaces with high ceilings and are not rated for the elevated humidity of an active greenhouse. They also tend to move large volumes of air at low velocity, which provides temperature mixing but not the targeted canopy-level airflow that reduces disease pressure on crop surfaces.

The V-FloFan is purpose-built for greenhouse and indoor growing environments. It combines the overhead mounting position of a destratification fan with an airflow pattern and housing designed for humid growing conditions, while delivering enough targeted air velocity at crop level to be useful for disease management rather than just temperature mixing. For growers running an Active Air pedestal fan in smaller spaces and looking to scale up to a commercial installation, the V-FloFan represents the next tier of overhead circulation purpose-built for production environments.

Compatibility

The 265/460-volt rating means this model is intended for facilities with higher-voltage electrical service — either 277V single-phase (common in commercial buildings wired for fluorescent lighting circuits) or 460V three-phase (standard in commercial and industrial settings in North America). It is not compatible with standard residential 120V or 240V single-phase circuits. Confirm your facility’s available supply voltage before ordering this model.

Physically, the V-FloFan is designed to mount overhead in greenhouse structures with standard purlin or truss spacing. It is suitable for gutter-connected multi-span greenhouses, single-span high-tunnel structures with adequate overhead clearance, and large enclosed indoor growing facilities with ceiling-mount points rated for the fan’s weight (58.1 lb / 26.4 kg).

The fan works across a wide range of crop types and growing systems — soil, coco, rockwool, NFT, and flood-and-drain — since its function is air circulation rather than a system-specific application. It complements environmental control equipment such as dehumidifiers, heaters, and evaporative coolers by distributing conditioned air more evenly through the growing space. If you are managing humidity with a dedicated unit such as the Ideal-Air Pro Series dehumidifier condensate pump, pairing it with overhead circulation fans like the V-FloFan ensures conditioned air reaches the full canopy rather than pooling near the dehumidifier’s intake.

For part numbers 737502 and 737504, a power cord is not included. Source a cord rated for your installation voltage and amperage, and ensure the installation is performed by a qualified electrician familiar with commercial greenhouse wiring.

Usage Guidelines

The V-FloFan is a continuous-duty circulation fan. Once installed, it is typically run throughout the photoperiod or around the clock depending on the crop’s air movement requirements and the facility’s humidity management strategy.

Spacing and coverage: Position fans overhead so that airflow patterns overlap slightly between adjacent units. Avoid large gaps in coverage where air movement drops off; these gaps become the humidity and stagnant-air problem areas the V-FloFan is designed to eliminate. Consult Vostermans’ coverage specifications for the specific model variant to determine recommended fan spacing for your bay width and ceiling height.

Humidity management: The V-FloFan reduces humidity at plant level by disrupting the saturated boundary layer that forms around leaves during active transpiration. It is not a dehumidifier — it does not remove moisture from the air — but it moves humid air away from leaf surfaces quickly enough to slow the conditions that favor fungal growth. In high-humidity environments, the V-FloFan should be used alongside a dehumidifier rather than as a standalone humidity control measure. Consider monitoring spot humidity across the bay to verify even coverage after installation.

Heat distribution: In greenhouses where heating systems deliver warmth near the floor or through perimeter pipes, warm air naturally rises and accumulates near the ceiling. Running the V-FloFan during heating periods pushes that warm ceiling air back down toward the crop, reducing the temperature differential between floor and ceiling level and lowering overall heating energy consumption.

Operating temperature: The fan is designed for greenhouse use and will tolerate the elevated humidity and temperature fluctuations typical of a production greenhouse. Avoid exposing the electrical connections and motor housing to direct water spray or condensation drip.

How to Install the Vostermans MultiFan V-FloFan

Installation of the V-FloFan should be performed by a qualified electrician or greenhouse systems technician, particularly for the 265/460-volt models, which require connection to commercial-grade electrical infrastructure. The steps below describe the general installation sequence.

1. Plan fan placement: Determine mounting positions based on your bay width, ceiling height, and target coverage pattern. Vostermans provides coverage guidance for each V-FloFan model — use this to space fans so airflow patterns provide complete canopy coverage without large dead zones.
2. Verify mounting structure load capacity: Confirm that the overhead purlins, trusses, or mounting rails can support the fan’s weight (58.1 lb / 26.4 kg) plus any dynamic load from motor vibration. Install mounting hardware rated for the load.
3. Mount the fan: Attach the fan to the overhead structure using manufacturer-approved mounting hardware. Ensure the fan is level and oriented so airflow is directed straight down through the crop canopy rather than at an angle.
4. Source and connect the power cord (part #737502 and #737504 only): These part numbers do not include a power cord. Obtain a cord rated for your installation voltage and the fan’s amperage draw. Have a licensed electrician make the electrical connection to the appropriate circuit breaker or disconnect.
5. Connect to power supply: Wire the fan to a 265V or 460V circuit as appropriate for your facility. Verify that the circuit is protected by a correctly sized breaker and that wiring gauge matches the amperage rating of the fan.
6. Test operation: Power on the fan and verify it runs smoothly without unusual vibration or noise. Check that airflow is reaching the canopy level at the expected coverage area. Adjust mounting angle slightly if the airflow pattern does not align with the growing area.
7. Establish a maintenance schedule: Inspect the fan blades and motor housing periodically for dust accumulation, which can reduce airflow efficiency and cause motor heat buildup. Clean blades with a dry or lightly damp cloth as needed; never spray water directly at the motor housing or electrical connections.

Sources & Further Reading