High-volume, low-speed fans should be compared as part of a warehouse layout, not simply by diameter or advertised coverage. For a Canadian buyer, the decision depends on where people work, what obstructs air movement, how the fans will be controlled and what the installed system costs.
Big Ass Fans, Rite-Hite and Schwank offer relevant products or design support. Their public pages are useful for building a shortlist, but they do not prove that a particular number of fans will meet your building’s needs. Request proposals based on the same site information and agree how the result will be checked.
What to ask each supplier to propose
Big Ass Fans: identify the model and its intended location
The Canadian HVLS range includes several product families. The Powerfoil D is described as a direct-drive, gearless model, while the wider range includes products aimed at different spaces. Ask the supplier to name the proposed model for each zone and explain the selection. Do not transfer a drive-system or control claim from one model to the entire range. [1]
Rite-Hite: connect fan selection with the control plan
Rite-Hite presents its Revolution HVLS fans alongside control options including FanCommander. Include it where the operating brief calls for coordinating several fans or zones. Have the proposal identify the compatible fan models, controller, wiring or communication requirements and the functions included in the quoted configuration. [2]
Schwank: use design assistance to develop a site proposal
Schwank markets MonsterFans for applications including warehouses and offers selection and design assistance. Use that service to request a layout tied to the actual building and operating brief. Clarify who supplies, installs and supports the equipment locally, because a product enquiry alone does not establish the complete installation scope. [3]
Give every bidder the same site information
Provide a plan showing roof height and structure, racking, mezzanines, conveyors, doors and occupied work areas. Identify suspended services and other obstructions that may affect placement. Include normal working hours, seasonal operating patterns and the locations where the existing conditions cause problems.
State the intended outcome precisely. For example, an occupied picking area and an intermittently used loading zone may need different operating schedules. Ask bidders to explain the conditions and assumptions behind their proposed layout rather than relying on one coverage figure for the whole building.
Where winter air mixing is part of the brief, ask for a separate operating strategy and the evidence supporting its assumptions. Keep any predicted energy reduction separate from a guaranteed result: a vendor estimate is not measured savings in your warehouse.
Evaluate air movement where the work happens
Ask the supplier to identify the proposed assessment locations in the occupied areas, including spaces affected by tall racks or other obstructions. Record the intended fan settings, door positions and building conditions for the assessment. This makes later measurements easier to interpret.
Avoid adopting a generic air-speed threshold from a sales page as the acceptance criterion for every job. Agree suitable criteria with the relevant specialists and operations team. A useful acceptance plan can include measured air movement at agreed locations, operator feedback and checks for interference with the work.
Trial the operating pattern where practical. Lightweight materials, paperwork or packaging may make some locations more sensitive to air movement. The goal is an acceptable working environment across the specified zones, not the highest possible reading directly below a fan.
Resolve the control and installation responsibilities
Describe how supervisors should start, stop and adjust the fans during a normal shift. Specify which zones need separate settings and whether integration with existing building controls is required. Ask for a demonstration of the proposed controls and a description of what happens after a power or communication interruption.
Before accepting the layout, have qualified parties address structural support, electrical work and coordination with existing fire-protection systems and services. Record who designs, checks and carries out each part. Do not derive mounting or clearance instructions from a general buyer’s guide.
Include access for future service in the review. A location that looks convenient on a floor plan may be expensive to reach once racking and operations are in place.
Compare the complete installed price in CAD
Ask for itemised equipment, controls, freight, installation, access equipment, electrical work and commissioning, with taxes shown consistently. Confirm the warranty terms, maintenance requirements and local support arrangements for the exact models offered.
Where proposals include projected energy savings, request the baseline, operating hours, tariff assumptions and measurement method. Compare the purchase on its documented requirements even if the savings forecast remains uncertain.
Choose the proposal that explains its layout, supplies the required controls and commits to a clear installation and acceptance scope. A lower fan-only price is not a complete comparison when the remaining work and operating assumptions differ.
References
- Big Ass Fans Canada — HVLS fans (bigassfans.com)
- Rite-Hite — HVLS industrial fans (ritehite.com)
- Schwank — MonsterFans HVLS fans (schwankgroup.com)
