PATTERSON · Wall-mount fan · Medium airflow

Patterson H18A Yoke-Mount High-Velocity Fan

Patterson H18A Yoke-Mount High-Velocity Fan
  • Patterson H18A Yoke-Mount High-Velocity Fan, view 2
  • Patterson H18A Yoke-Mount High-Velocity Fan, view 3
  • 3,800 CFMon high
  • 17-inchhead
  • 1/2 HPmotor
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Is 3,800 CFM enough for my room?Compare this fan

Specs cited from Manufacturer source ↗Photos: Amazon listing ↗ · refreshed Oct 31, 2026

The Patterson H18A is an 18-inch-class yoke-mount high-velocity fan with a 17-inch, three-blade propeller that Patterson rates at 3,800 CFM from a 1/2 HP motor. It is a compact, mountable workhorse for aiming air along a line or at a workstation.

What works

  • 3,800 CFM on high from a 17-inch head
  • 1/2 HP motor
  • 12-ft power cord
  • Patterson rates it at 3,800 CFM from a 1/2 HP motor
  • Electrical option A: 115V/208-230V, with a 12-foot cord for 115V use

What doesn't

  • No published watts, amps, dBA or weight
  • The 12-foot cord applies to 115V only, and a switch is optional

Who it's for

Good fit

  • Workstations, machine lines and dock doors that need focused, mounted airflow
  • Mounting to beams, columns or walls to keep the floor clear
  • Single-phase shops, per the listing, on 115V or 208-230V supplies

Look elsewhere if

  • Whole-floor circulation in a large building; the 30-inch H30A moves over three times the air
  • Buyers who need published watts, amps or noise figures

A good fit for your job? Check the current price and delivery.

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Why it stands out

The H18A packs a lot of push into a small, mountable head. Patterson's spec rows list a 17-inch, three-blade Galvalum propeller at a steep 33-degree pitch on a 1/2 HP motor, rated at 3,800 CFM. That is more rated airflow than the 18-inch Air King multi-mount fans, from a head you can bolt exactly where the heat is: over a press, beside a dock door or at the end of an assembly line.

Setup is simple. The yoke mount is standard, and Patterson's electrical option A covers 115V or 208-230V. The 115V setup comes with a 12-foot cord and an optional switch.

What to know before you buy

  • Power: 115V or 208-230V per Patterson, while the listing title says 1 PH 115/220v. The cord is for 115V only, so a 208-230V install means wiring it in. Have an electrician do that, and mount the yoke to solid structure with rated hardware.
  • Mounting: a beam, column or wall with room for the guard to clear people and equipment.
  • Noise and power: Patterson publishes no watts, amps or dBA. A 1/2 HP high-velocity head will not be quiet.
  • Size: the nominal 18-inch fan uses a 17-inch propeller. Compare it on CFM, not the name.

How it compares

  • Air King 9318 multi-mount: an 18-inch fan with Air King's full table: 3,190 CFM, 180 W and 67 dBA on high. It has a little less air, but documented power and noise, and it plugs into 120 V.
  • iLIVING ILG8E18-15: an 18-inch wall fan that iLIVING rates at 6,360 CFM on 168 W in its manual. It claims far more air for a wall-mounted spot.
  • Patterson H30A: the big sibling, a 30-inch, 1 HP yoke fan rated at 12,000 CFM. Choose it to move a whole bay instead of one station.

Bottom line

The H18A is a strong, compact mounted fan for targeted cooling. Buy it for workstations and lines. Step up to the H30A for whole-floor circulation.

Verdict

Buy the H18A if you want a compact, mountable 3,800 CFM fan to aim at workstations or along a line. Skip it if you need published noise and power figures; the Air King 9318 documents 3,190 CFM and 67 dBA in the same size class.

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Questions people ask

How much air does the Patterson H18A move?
Patterson rates the 18-inch size at 3,800 CFM from a 1/2 HP motor.
What is the actual propeller size?
Patterson lists a 17-inch, three-blade Galvalum propeller at 33 degrees. The 18-inch figure is the nominal size.
What voltage does it use?
Patterson lists electrical option A as 115V/208-230V, with a 12-foot cord for 115V only. The listing title says 1 PH 115/220v.
How is it mounted?
It comes with Patterson's standard yoke mount, which bolts to a beam, column or wall.

Before you buy

Installation and buying checks

Use these questions to verify the exact configuration. Linked facts are cited; unlisted details stay questions.

  1. Mounting and support

    What mounting method and hardware does the exact unit require?

  2. Clearance and handling

    Do the listed physical details leave enough clearance for installation, adjustment, and service?

  3. Electrical match

    What voltage and connection requirements does the exact unit specify?

  4. Airflow at the job

    Is the listed airflow rated at an operating point that matches the job after placement, obstructions, and system resistance are considered?

  5. Location requirements

    Does the site require an environmental rating or guard? Neither is listed here.

Put 3,800 CFM in context

The Patterson H18A Yoke-Mount High-Velocity Fan has a listed airflow of 3,800 cubic feet per minute. The table compares this rated volume with example room volumes. It does not measure fresh-air exchange, air speed at your body, or room coverage.

RoomSizeNominal room volumes / hourNominal pass interval
One-car garage22 × 12 × 9 ft · 2,376 ft³96×38 s
Two-car garage22 × 20 × 9 ft · 3,960 ft³58×1 min
Workshop40 × 30 × 12 ft · 14,400 ft³16×3.8 min
Warehouse bay100 × 50 × 16 ft · 80,000 ft³2.9×21 min

A circulation fan does not by itself replace indoor air. Exhaust airflow depends on a makeup-air path and system resistance. Use installed outdoor airflow for ventilation calculations.

Formula: airflow × 60 ÷ room volume. CDC explains the ventilation form of this equation; here the input is a catalog rating, so the result is a volume comparison.

Work it out for your own room →

Listing details

What we know about this listing

Listing data was imported on October 31, 2026. Each specification can have a different source-check date; the evidence below is the most precise source information available here.

Sources for 4 listed specifications
  • Blade diameter: Patterson High-Velocity Fans · checked Sep 15, 2026 · 18-inch size section, FEATURES propeller row and SPECS CFM/HP rows — “Propeller: 17” Diameter, 3-Blade Galvalum, 33°; CFM: 3800; HP: 1/2.”
  • Blade diameter: Patterson High-Velocity Fans product JSON · checked Sep 15, 2026 · product.variants[] record with sku `H18A` — “SKU H18A: 18" / A: 115V/208-230V (12' Cord) / Yoke (Standard).”
  • Airflow (high): Patterson High-Velocity Fans · checked Sep 15, 2026 · 18-inch size section, FEATURES propeller row and SPECS CFM/HP rows — “Propeller: 17” Diameter, 3-Blade Galvalum, 33°; CFM: 3800; HP: 1/2.”
  • Airflow (high): Patterson High-Velocity Fans product JSON · checked Sep 15, 2026 · product.variants[] record with sku `H18A` — “SKU H18A: 18" / A: 115V/208-230V (12' Cord) / Yoke (Standard).”
  • Motor: Patterson High-Velocity Fans · checked Sep 15, 2026 · 18-inch size section, FEATURES propeller row and SPECS CFM/HP rows — “Propeller: 17” Diameter, 3-Blade Galvalum, 33°; CFM: 3800; HP: 1/2.”
  • Motor: Patterson High-Velocity Fans product JSON · checked Sep 15, 2026 · product.variants[] record with sku `H18A` — “SKU H18A: 18" / A: 115V/208-230V (12' Cord) / Yoke (Standard).”
  • Cord length: Patterson High-Velocity Fans · checked Sep 15, 2026 · 18-inch size section, FEATURES power-cord row — “Power Cord (115V Only): 12’ Length (Switch Optional).”
  • Cord length: Patterson High-Velocity Fans product JSON · checked Sep 15, 2026 · product.variants[] record with sku `H18A` — “SKU H18A: 18" / A: 115V/208-230V (12' Cord) / Yoke (Standard).”

Photos illustrate the listed model. Confirm the current variant, included hardware, and finish with the seller before purchase.

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