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Nationwide · USA
Installation · Service · Nationwide

We Keep The Big Fans Turning.

We don't make the fans — so our only job is getting you the right one. Free, no-pressure guidance on which fan fits your building and budget, plus expert installation and service nationwide — from aircraft hangars to distribution centers.

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Brands we handle: Go Fan Yourself · Big Ass Fans · Rite-Hite · MacroAir · SkyBlades
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Who We Are

Specialists, Not Generalists.

We do one thing — big fans — and we do it everywhere.

Fan Guys offers nationwide service and installation of high-volume, low-speed (HVLS) fans — plus free, unbiased guidance on choosing the right one in the first place. We work in warehouses, aircraft hangars, manufacturing plants, arenas, and ag buildings — anywhere a big fan needs to go up safely and run for years.

Because we focus only on large-diameter fans, we know the mounts, the rigging, the controls, and the brands inside and out. You get the right hardware, clean wiring, and a crew that's done it a few hundred times.

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0States Served
0Fans Installed
0Major Brands
0Years In The Field
What We Do

Full-Service HVLS, Coast to Coast.

New installs to emergency repairs — we cover the whole life of your fan.

01

Free Fan Consultation

No-pressure help choosing the right fan for your space, budget, and goals. We know the whole field and have no quota to hit — just honest guidance.

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02

Turnkey or Mechanical-Only Install

Full turnkey installs — mechanical and electrical — or mechanical-only if you've got your own electrician. The wiring is the labor-heavy part, so handling it in-house can save you real money.

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03

Service & Repair

Vibration, noise, control faults, or a fan that's down — we diagnose the real problem and handle the right fix, from controls and balancing up to a full hub-and-motor replacement.

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04

Preventive Maintenance

Scheduled inspections that catch wear before it becomes downtime — keeping your warranty intact and your fans turning.

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05

Mounting & Rigging

Mounted to the manufacturer's spec on whatever your building gives us — I-beam, truss, purlin, wood beam, concrete, or chain-hung — with heavy steel angle and Grade 8 hardware for a rock-solid hang.

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06

Controls & VFD Wiring

Variable-frequency drives, sensors, BMS and fire-alarm interlocks wired clean and dialed in so your fans start, ramp, and stop right.

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The Independent Advantage

We Work for You, Not the Factory.

Most fan salespeople work for one manufacturer — so they push their fan whether it fits or not. We work for you. Years of installing and servicing the big brands means we know the whole field, and our advice is free and unbiased: tell us about your building and we'll tell you straight what'll actually work.

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  • A free consultation, not a pitchTell us about your space and we'll give you a straight recommendation — no obligation, no quota.
  • We know the whole fieldHands-on experience installing and servicing every major brand — not a catalog.
  • Right-sized for your spaceMatched to your ceiling height, layout, and airflow needs, not a default.
  • One crew, start to finishThe same people who help you choose can install it and keep it running.
By Industry

On The Job, Across The Map.

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Why Big Fan Guys

Built On Doing It Right.

Big-Fan Specialists

We do one thing — large HVLS fans — and we do it every day. Mounts, rigging, controls, the whole job.

We Travel To You

Coast to coast. If you've got a building and a fan, we'll get there.

Every Major Brand

Go Fan Yourself, Big Ass Fans, Rite-Hite, MacroAir, SkyBlades and more — we know them all.

Safety First, Always

Lift-certified crews, proper fall protection, and clean job sites from start to sign-off.

Quote

Send us your building, fan count, and brand. We scope it and price it fast.

Schedule

We coordinate lifts, access, and downtime windows that work for your operation.

Install / Service

Our crew mounts, wires, and commissions — or services what you've already got.

Sign-Off

We test under load, walk you through it, and leave the site clean.

The Fan Guys mascot
Coast to Coast

We Cover the Whole Country

We install and service big HVLS fans in all 50 states — warehouses, hangars, plants, barns, and government facilities. Wherever your building is, we'll get there, get it hung right, and be there to service it for years.

Map of Fan Guys HVLS fan installation and service coverage across the United States
Get In Touch

Request a Free Consultation.

Tell us about your building and we'll come back with a straight, no-pressure recommendation on what'll work. Free consultation — no obligation.

How we'll replyBy email — usually within a business day
Service AreaNationwide — United States

We'll get right back to you — or call/text us anytime.

The Fan Guys Blog

HVLS News & Field Notes

Straight talk on big fans — industry developments, install tips, and what we're seeing on job sites around the country.

© Fan Guys · BigFanGuys.com
Resource Center

The HVLS Playbook

Thinking about adding big fans to your facility? Here's the straight-talk guide we wish every operations manager had before they bought — how HVLS fans work, how to size them, what the codes require, and the questions to ask before you sign anything.

The Basics

What Is an HVLS Fan?

HVLS stands for high-volume, low-speed. Instead of blasting a narrow, fast stream of air like a drum or pedestal fan, an HVLS fan uses a large-diameter blade set (typically 6 to 24 feet) turning slowly to move a huge column of air gently down to the floor, where it spreads out in every direction and circulates back up — a continuous, stable loop that covers the whole room.

Feels ~8–10°F cooler
Summer: one slow-moving air column cools the whole floor.

Because the air moves across your skin, it speeds up evaporation and makes people feel roughly 8–10°F cooler — without actually lowering the room temperature or running more AC.

In winter the same fan runs slow to do the opposite job: it pushes the warm air that's stacked up at the ceiling back down to where people are working. That's called destratification, and it's where a lot of the heating savings come from.

Why Facilities Add Them

The Payoff

WITHOUT FANS ~85°F at ceiling ~62°F at floor WITH HVLS ~72°F top to bottom
Winter: destratification mixes trapped ceiling heat back down.

Summer Comfort

A perceived 8–10°F drop keeps crews comfortable and productive without more AC.

Lower Energy Bills

Raising the thermostat a few degrees saves roughly 3% per degree; winter destratification cuts heating waste.

Heat-Stress Safety

Steady air movement helps reduce heat-related illness risk in hot facilities.

Moisture Control

Moving air helps prevent condensation, slick floors, and that muggy, stagnant feel.

People Stay Longer

Comfortable warehouses and shops are easier to staff and retain workers in.

Year-Round Use

One system that earns its keep in summer cooling and winter heating alike.

Getting It Right

Sizing & Coverage

One big fan can cover an enormous area — up to about 20,000 sq ft — replacing a dozen or more small fans. But the right size depends on your ceiling height, bay layout, racking, and obstructions. These are rough rules of thumb to frame the conversation, not a substitute for a real site evaluation.

Fan DiameterApprox. Coverage*Typical Fit
8–10 ftup to ~3,500 sq ftSmaller shops, gyms, bays
12–14 ftup to ~8,000 sq ftMid-size warehouses
16–18 ftup to ~12,000 sq ftDistribution, manufacturing
20–24 ftup to ~20,000 sq ftHigh-bay, hangars, big-box

*Approximate, for planning only. Actual coverage varies by fan model, speed, ceiling height, and layout.

One fan ≈ up to 20,000 sq ft Top-down view · coverage spreads from the center out
Coverage radiates outward from a single fan.
Ceiling height matters. HVLS fans do their best work with 16-ft or taller ceilings. The practical minimum is about 10–12 ft, and a good rule is that the fan's diameter shouldn't be larger than its mounting height above the floor.
How It Hangs

Mounting Methods

We don't fabricate proprietary mounts — we install the manufacturer's mounting hardware to whatever structure your building gives us. Every building is different, so the first thing we figure out on a site visit is exactly what we're hanging from. The most common are:

I-beam mountI-Beam
Truss mountTruss
Purlin mountPurlin
Wood beam mountWood Beam
Concrete mountConcrete
Chain-hung mountChain-Hung

Whatever the structure, the work is done to the manufacturer's mounting requirements — no guesswork. For spans under eight feet we build the support from 3″ × 3″ × ¼″ steel angle, and everything gets Grade 8 fasteners (or the approved equivalent for the material we're anchoring into). Add the proper safety cabling and clean alignment, and you've got a mount that holds true for years.

Running the Fan

Controls & Integration

Most big fans run on a variable-frequency drive (VFD) that ramps the motor up and down smoothly and lets you dial in exact speeds. Beyond a simple wall control, fans can tie into:

  • Temperature & humidity sensors for automatic speed
  • Building management systems (BMS) for central control
  • Fire-alarm interlock to shut down on a sprinkler signal
  • Forward/reverse scheduling for summer and winter modes
Don't Skip This

Codes & Safety

If your building has fire sprinklers — and most commercial buildings over 5,000 sq ft do — there are real code requirements for installing a big fan beneath them. Under NFPA 13 (the sprinkler standard), the key rules for HVLS fans are:

CEILING / DECK ≥ 3 ft Centered between 4 sprinklers · ≤ 24 ft diameter Must shut OFF on sprinkler waterflow
NFPA 13 fan-under-sprinkler requirements.
  • Maximum fan diameter of 24 ft
  • Fan centered between four adjacent sprinklers
  • At least 3 ft of clearance from blade to sprinkler deflector
  • Interlocked to shut down automatically on a sprinkler waterflow signal (per NFPA 72)
Why it matters: a spinning fan can disrupt how sprinkler water reaches a fire, so the shut-off interlock is a life-safety requirement — not an optional add-on. We wire it in as part of the install. Also look for the AMCA Certified Ratings seal, which means a fan's airflow and efficiency numbers were independently verified, and UL 507 for electrical safety. Always confirm requirements with your local authority having jurisdiction (AHJ).
The Landscape

The Major Brands

There's no single "best" HVLS fan — there's a best fan for your building and budget. Here's an honest, plain-English look at the brands we know and service. Because we're independent, our advice is free and unbiased — we'll point you to whichever one actually fits.

Big Ass Fans

The brand that put HVLS on the map. Broad lineup, premium pricing, strong smart controls and sensors.

MacroAir

Credited with inventing the HVLS fan back in 1998. Deep industrial range and a long track record.

Go Fan Yourself / Vivid Air Movement

Value-focused, American-made fans that deliver strong performance without the premium-brand price tag.

Rite-Hite (Revolution)

Industrial specialist, popular where fans tie into a broader loading-dock and facility-safety ecosystem.

SkyBlades

Industrial HVLS fans built for large commercial and manufacturing spaces.

...and others

Hunter Industrial, Epic and more. Tell us your space and we'll match it — no brand loyalty, just the right fit.

Before You Buy

Questions to Ask

Run through these before you commit to any fan or installer — they'll save you headaches and surprise costs:

  • How tall are my ceilings, and what will the fan hang from (I-beam, truss, purlin, wood, concrete, chain)?
  • Do I have sprinklers? If so, is the fan sized and wired to meet NFPA 13 and shut off on waterflow?
  • How many fans do I need, and what square footage will each actually cover in my layout?
  • What power is available at the install location — voltage and phase?
  • How will I control it — wall unit, sensors, BMS, winter reverse mode?
  • Are the performance numbers AMCA-certified, or just marketing claims?
  • What's the warranty, and who services the fan after the sale?
  • Will I use it year-round for winter destratification, not just summer cooling?
Speak the Language

Quick Glossary

HVLS
High-Volume, Low-Speed — a large fan that moves a lot of air slowly.
Destratification
Mixing the warm air trapped at the ceiling back down to floor level.
Perceived / evaporative cooling
The "feels cooler" effect from air moving over your skin; the real temperature doesn't change.
CFM
Cubic Feet per Minute — how much air a fan moves.
VFD
Variable-Frequency Drive — the controller that smoothly varies fan speed.
Airfoil & winglet
The blade and its tip cap, shaped to move air efficiently and quietly.
Interlock
A wired connection that shuts the fan off automatically on a fire-alarm/sprinkler signal.
AHJ
Authority Having Jurisdiction — your local code official who signs off on the install.
Dig Deeper

References & Further Reading

Authoritative sources for the codes and standards referenced above:

Still Have Questions?

That's what we're here for. Tell us about your building and we'll give you a straight answer — no pressure, no quota.

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© Fan Guys · BigFanGuys.com · Educational resource — always confirm requirements with your local AHJ.