Type hoffman central vacuum system into Google and you’ll likely land on a 20-horsepower exhauster spec sheet, not a home power unit. That’s because Hoffman & Lamson builds industrial vacuum systems for factories and clean rooms, and no search result says so plainly.
Here’s what changes by the end: you’ll know exactly which Hoffman you’re dealing with, whether parts still exist for an old industrial unit, and which reputable ducted vacuum manufacturers actually serve houses.
Hoffman Central Vacuum System
Hoffman & Lamson makes industrial engineered vacuum systems for factories, never home central vacuums, and stopped manufacturing new units in July 2022. Current owners now rely on aftermarket parts support only. Homeowners searching for a residential system need a completely different brand, sized by air watts and pipe-run length, not horsepower.This guide draws on Hoffman & Lamson’s legacy support documentation, Ingersoll Rand’s merger records, and manufacturer spec sheets.
Hoffman Builds Industrial Central Vacuums, Not Home Systems
Hoffman builds engineered vacuum systems for industrial facilities, never for homes. The Hoffman name you’re searching for almost certainly belongs to Hoffman & Lamson, a brand under Ingersoll Rand that designs centrifugal exhausters for factories, clean rooms, and lumber mills, not whole-house systems for homes.
Why Your Search Probably Landed in the Wrong Aisle
A homeowner pricing a whole-home vacuum regularly lands on a 20-horsepower exhauster spec sheet built for a sawdust collection line, not a living room. Hoffman & Lamson serves factories, clean rooms, and lumber mills, and no residential Hoffman line exists.
Beam, owned by Electrolux Group since its acquisition of the brand’s global central vacuum assets, NuTone, now made under license by Broan-NuTone LLC after Nortek’s consolidation of the brand’s residential ventilation and vacuum lines, Drainvac, CycloVac, OVO, and Vacuflo build garage-mounted systems piped to inlets in every room, sized in air watts instead of horsepower.
What Is a Hoffman Central Vacuum System Exactly?
A Hoffman central vacuum system, more precisely an engineered vacuum system (EVS), is a piped network built around a centrifugal or regenerative exhauster, collectors, and fixed tubing branching to multiple operator drops.
These systems handle sawdust, metal shavings, and clean-room dust at a scale no home needs, running 5 to 20 horsepower motors versus 2 to 3 horsepower for an entire house power unit.
The Steam Heating Mix Up Confusing Old House Owners
Hoffman Specialty made vapor vacuum steam heating systems, a completely different product from any central vacuum. Old-house forums mix the two names constantly.
One owner on a heating forum described “bleeding the Hoffman valves on my vapor system every fall.” Pipes carrying steam to radiators mean heating; pipes carrying dust to a basement canister mean vacuum, unrelated systems sharing a name.
The July 2022 Shutdown Nobody Announced Loudly
Hoffman & Lamson stopped manufacturing new central and engineered vacuum systems in July 2022, shifting to aftermarket support only. That single fact changes every decision a current owner or prospective buyer makes about the brand today, and almost no distributor page mentions it.
Hoffman and Lamson Stopped Building New Systems in 2022
Effective July 2022, Hoffman & Lamson ended new central and engineered vacuum system manufacturing immediately, according to Hoffman & Lamson’s legacy central vacuum support notice, calling it a shift in business priorities.
More than 100,000 of these machines still run in factories worldwide, a fact dealers and distributors rarely mention.
Is Hoffman and Lamson Still in Business Today?
Yes. Hoffman & Lamson is still in business, now focused on centrifugal blowers and aftermarket vacuum parts rather than new vacuum system sales. The vacuum line went legacy, not dead, a distinction that matters for anyone budgeting repairs.
Blower products like the Revolution Plus turbo series carry the Hoffman and Lamson names forward, even though new central vacuum manufacturing isn’t part of the lineup anymore.
What Aftermarket Only Support Actually Means for Owners
Aftermarket-only support means Hoffman & Lamson will still sell parts, oils, and accessories for an existing unit, but won’t quote a new system or design an expansion. Think of it like a discontinued car model: the dealer still stocks brake pads and filters, but the factory isn’t stamping new chassis anymore.
Parts ship through certified OEM channels for now. Plan upgrades around your existing tubing, since matching new equipment gets harder every year.
Who Really Owns the Hoffman Name Today
Ingersoll Rand owns the Hoffman name today, through a chain of acquisitions that started in 1996 and ended with the 2020 Gardner Denver merger. Tracing that lineage shows where parts and service come from today.
From Syracuse Workshops to the Ingersoll Rand Portfolio
Lamson, founded in 1880, and Hoffman, founded in 1905, started as separate companies. Lamson Corporation of Syracuse joined Gardner Denver in 1996, and Invensys sold the Hoffman business to Gardner Denver in 2001 for $45 million.
Gardner Denver merged with Ingersoll Rand’s Industrial Segment on March 1, 2020, headquartered in Davidson, North Carolina, with the Nash Division based in Bentleyville, Pennsylvania.
Two Brands, One Catalog, and Why That Matters
Hoffman and Lamson now share one catalog under the Nash Division, so some legacy part numbers cross over between the two badges.
| Brand | Founded | Now Under |
|---|---|---|
| Lamson | 1880 | Nash Division, Ingersoll Rand |
| Hoffman | 1905 | Nash Division, Ingersoll Rand |
Knowing which badge your unit wears speeds up every parts search, since model numbers sometimes map between the two.
Why Corporate Ownership Changes Your Parts Outlook
Conglomerate ownership keeps parts flowing longer than an orphaned brand ever could. One facilities manager tracing a bearing kit for a 1990s Lamson exhauster found the part number had survived three corporate name changes, from Lamson Corporation to Gardner Denver to Ingersoll Rand.
Ingersoll Rand’s distributor network spans Michigan, Ohio, and beyond, keeping these decades-old systems repairable long after smaller brands from the same era have vanished.
What These Systems Were Actually Built to Do
Hoffman and Lamson engineered vacuum systems were built to move heavy industrial debris through fixed piping using multistage centrifugal or regenerative exhausters, not to clean carpet. Understanding that design explains why the spec sheet looks nothing like a home vacuum’s.
Multistage Centrifugal Exhausters Explained Without the Jargon
A multistage centrifugal exhauster works like a stack of fans, each adding another push of suction on top of the last. The exhauster is the heart of every Hoffman central system, and stacking impeller stages builds deep, steady vacuum instead of one motor straining alone.
These designs use one moving part, the rotating impeller shaft, keeping maintenance low for decades.
Real Numbers on Airflow, Vacuum Depth, and Noise
The Lamson TurboTron regenerative line delivers up to 900 CFM at 14 inches of mercury, running at 82 dBA from three feet away, quiet for industrial duty.
Industrial specs use CFM and inches of mercury, a measure of vacuum depth, not air watts, a different measurement language than the air watt and water lift numbers on a residential spec sheet.
Eight Operators on One System Sounds Impossible Until Explained
Heavy-duty Hoffman and Lamson exhausters run up to eight simultaneous vacuum operators on one system, each pulling through 1.5-inch or 2-inch hose drops across a plant floor.
Compare that to a home system, where a second open inlet causes most residential power units to lose suction. The industrial exhauster has horsepower and duct sizing a house never needs.
Keeping a Legacy Hoffman System Alive in 2026
Keeping a legacy Hoffman & Lamson system alive in 2026 means working through certified OEM parts channels and authorized distributors, since the factory itself no longer builds replacement units.
The Parts You Can Still Order Today
Certified OEM parts still ship through Hoffman & Lamson’s Quick Ship program, covering everything from hoses to impellers.
| Part Category | Examples |
|---|---|
| Hoses | Flexible plastic, heavy-duty rubber, crush-proof |
| Tubing | Smooth Flow ducting |
| Wear parts | Bearing kits, seal kits, impellers |
| Consumables | Lubricating oils |
Bearing, seal, and impeller kits remain available without a custom order.
Finding an Authorized Distributor Before You Need One
Regional distributors like Kerr Pump in Michigan and Excelsior Blower stock legacy Hoffman and Lamson parts and handle installation, startup, and repairs. Build that relationship before a failure shuts down your line.
Tonight’s task: photograph your unit’s model and serial plate and file it where your maintenance team can find it during an emergency call.
Maintenance Habits That Stretch a Blower Past Thirty Years
Regenerative exhauster bearings need only occasional greasing, and non-contacting shaft seals avoid the wear that kills cheaper motors.
One distributor technician put it simply: “These shafts don’t touch anything, so there’s nothing rubbing itself to death.” Routine inspection, checking bearing temperature, prevents the downtime that forces a panic replacement.
When Repair Stops Making Sense
Repair stops making sense once parts lead times stretch longer than your facility can tolerate downtime, or the repair cost approaches a meaningful share of a new system’s price.
Repair or Replace, Running the Honest Numbers
Pricing a repair against a new system from an active manufacturer means comparing more than the invoice totals.
| Factor | Repair (Legacy) | Replace (Active) |
|---|---|---|
| Upfront cost | Lower | Higher |
| Parts horizon | Shrinking yearly | Full support |
| Downtime risk | Lead-time dependent | Scheduled window |
| Tubing reuse | Already in place | Often reusable |
Downtime cost per day is the number facilities most often underestimate, since a few days without dust collection can shut down a production line.
Industrial Alternatives Still Manufacturing New Systems
Several industrial central vacuum manufacturers build new engineered systems, and many connect to existing tubing runs. One facility that migrated off a legacy Hoffman exhauster reused nearly all of its original Smooth Flow ducting, cutting the replacement budget below a full rebuild.
Demand published CFM and vacuum depth curves for the new exhauster before signing anything, and compare them against your old unit’s nameplate data.
Homeowners, Here Is What to Buy Instead
Homeowners who wanted a Hoffman central vacuum system for their house should look at residential brands built specifically for home pipe runs and inlet layouts, sized in air watts rather than horsepower. The right pick depends on your home’s square footage and longest hose run, not the name on the canister.
Residential Brands That Actually Serve Houses
Beam, NuTone, Drainvac, CycloVac, OVO, and Vacuflo all build whole-home systems, something Hoffman & Lamson has never done. Confirm current warranty terms with each manufacturer, since several of these brands changed hands or licensing within the past two decades.
For a closer look at two names that come up often in this search, read Invac systems and key specs for a mid-range option with straightforward parts support.
Or check Acv central vacuum models reviewed for a compact power unit that fits a smaller utility space better than a full-size canister.
The Specs That Matter in a Home System
Air watts measure usable suction at the hose end, calculated under load using the ASTM F558 test method, the residential equivalent of comparing horsepower to towing capacity.
True HEPA filtration captures 99.97 percent of particles at 0.3 microns, per the EPA’s definition of a true HEPA filter. Skip raw motor wattage, the spec dealers inflate because it sounds impressive but says nothing about performance at your farthest inlet.
Sizing a System Before You Call Any Dealer
Place inlet valves so every corner of a room sits within 35 hose feet, then count inlets per floor instead of total square footage. A two-story, 2,400-square-foot home needs inlets covering both floors and any finished basement separately.
The power unit needs its own circuit, a dedicated line meeting NFPA 70 (National Electrical Code) requirements before the unit goes in, not after drywall closes.
Conclusion
You came in thinking Hoffman was a vacuum brand worth shopping, and you’re leaving knowing it’s a legacy industrial line with a clear parts path, or a name that pointed you to the wrong aisle.
Tonight, photograph your unit’s model and serial plate if you’re maintaining a Hoffman & Lamson exhauster, or grab a tape measure and walk your floor plan if shopping for a home system. Piped central vacuum outlasts every portable because the motor never travels and never gets dropped down the stairs.
Frequently Asked Questions
Is Hoffman a residential central vacuum brand for homes?
No. Hoffman & Lamson builds industrial engineered vacuum systems for factories and clean rooms, and no residential Hoffman central vacuum line exists or ever has.
Who makes Hoffman central vacuum systems?
Hoffman & Lamson, part of Ingersoll Rand’s Nash Division, made these systems until manufacturing stopped in July 2022. The brand traces through Gardner Denver, which acquired Hoffman in 2001 and Lamson in 1996.
Are Hoffman & Lamson central vacuum systems still being manufactured?
No. New manufacturing ended in July 2022, and the company now offers aftermarket support for parts, oils, and accessories on existing units only.
Where do I get parts and service for an existing Hoffman & Lamson industrial vacuum?
Through certified OEM channels and authorized regional distributors, such as Kerr Pump in Michigan or Excelsior Blower, which stock legacy hoses, bearing kits, seal kits, and impellers.
What residential central vacuum should I buy if I was looking for a Hoffman?
Look at Beam, NuTone, Drainvac, CycloVac, OVO, or Vacuflo, sized by air watts and pipe-run length rather than horsepower. None of these brands relate to Hoffman & Lamson’s industrial line.